{"id":4923,"date":"2020-12-25T12:20:38","date_gmt":"2020-12-25T04:20:38","guid":{"rendered":"https:\/\/damogame.cn\/wordpress\/?p=4923"},"modified":"2024-01-03T19:27:20","modified_gmt":"2024-01-03T11:27:20","slug":"%e5%88%86%e5%b8%83%e5%bc%8f%e5%ad%98%e5%82%a8%e5%bc%80%e5%8f%91%ef%bc%9acurve%e4%b8%ad%e7%9a%84%e5%86%85%e5%ad%98%e7%ae%a1%e7%90%86","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/4923","title":{"rendered":"\u5206\u5e03\u5f0f\u5b58\u50a8\u5f00\u53d1\uff1aCurve\u4e2d\u7684\u5185\u5b58\u7ba1\u7406"},"content":{"rendered":"<div class=\"article-box__header\">\n<div class=\"article-box__group\">\n<div class=\"group-card\">\n<div class=\"group-card__inner\">\n<div class=\"group-card__extra\"><a href=\"https:\/\/my.oschina.net\/u\/4565392\/blog\/4740872\">\u539f\u6587\u5730\u5740<\/a><\/div>\n<div><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"article-box__content\">\n<div class=\"detail-box\">\n<div class=\"article-detail\">\n<div class=\"content\"><span id=\"OSC_h2_1\"><\/span><\/p>\n<h2>\u524d\u8a00<\/h2>\n<p><a href=\"https:\/\/www.oschina.net\/p\/curve\" target=\"_blank\" rel=\"noopener\">Curve\u00a0<\/a>\u5b9e\u8df5\u8fc7\u7a0b\u4e2d\u9047\u5230\u8fc7\u51e0\u6b21\u5185\u5b58\u76f8\u5173\u7684\u95ee\u9898\uff0c\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u5185\u5b58\u7ba1\u7406\u76f8\u5173\u7684\u662f\u4ee5\u4e0b\u4e24\u6b21\uff1a<\/p>\n<ol>\n<li><code>chunkserver<\/code>\u4e0a\u5185\u5b58\u65e0\u6cd5\u91ca\u653e<\/li>\n<li><code>mds<\/code>\u51fa\u73b0\u5185\u5b58\u7f13\u6162\u589e\u957f\u7684\u73b0\u8c61<\/li>\n<\/ol>\n<p>\u5185\u5b58\u95ee\u9898\u5728\u5f00\u53d1\u9636\u6bb5\u5927\u591a\u5f88\u96be\u53d1\u73b0\uff0c\u6d4b\u8bd5\u9636\u6bb5\u5927\u538b\u529b\u7a33\u5b9a\u6027\u6d4b\u8bd5(\u6301\u7eed\u8dd17*24\u5c0f\u65f6\u4ee5\u4e0a)\u3001\u5f02\u5e38\u6d4b\u8bd5\u5f80\u5f80\u6bd4\u8f83\u5bb9\u6613\u51fa\u95ee\u9898\uff0c\u5f53\u7136\u8fd9\u8fd8\u9700\u8981\u6211\u4eec\u5728\u6d4b\u8bd5\u9636\u6bb5\u8db3\u591f\u4ed4\u7ec6\uff0c\u9664\u4e86\u5173\u6ce8io\u76f8\u5173\u6307\u6807\u5916\uff0c\u8fd8\u8981\u5173\u6ce8\u670d\u52a1\u7aef\u5185\u5b58\/CPU\/\u7f51\u5361\u7b49\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\u4ee5\u53ca\u91c7\u96c6\u7684<code>metric<\/code>\u662f\u5426\u7b26\u5408\u9884\u671f\u3002\u6bd4\u5982\u4e0a\u8ff0\u95ee\u9898<code>mds \u5185\u5b58\u7f13\u6162\u589e\u957f<\/code>\uff0c\u5982\u679c\u53ea\u5173\u6ce8io\u662f\u5426\u6b63\u5e38\uff0c\u5728\u6d4b\u8bd5\u9636\u6bb5\u662f\u65e0\u6cd5\u53d1\u73b0\u7684\u3002\u5185\u5b58\u95ee\u9898\u51fa\u73b0\u540e\u5b9a\u4f4d\u4e5f\u4e0d\u5bb9\u6613\uff0c\u5c24\u5176\u5728\u8f6f\u4ef6\u89c4\u6a21\u8f83\u5927\u7684\u60c5\u51b5\u4e0b\u3002<\/p>\n<p>\u672c\u6587\u4e3b\u8981\u662f\u4ece\u5f00\u53d1\u8005\u7684\u89d2\u5ea6\u6765\u8c08 Curve \u4e2d\u7684\u5185\u5b58\u7ba1\u7406\uff0c\u4e0d\u4f1a\u8fc7\u5ea6\u5f3a\u8c03\u5185\u5b58\u7ba1\u7406\u7406\u8bba\uff0c\u76ee\u7684\u662f\u628a\u6211\u4eec\u5728\u8f6f\u4ef6\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u5bf9 Linux \u5185\u5b58\u7ba1\u7406\u7684\u8ba4\u77e5\u3001\u5185\u5b58\u95ee\u9898\u5206\u6790\u7684\u4e00\u4e9b\u65b9\u6cd5\u5206\u4eab\u7ed9\u5927\u5bb6\u3002\u672c\u6587\u4f1a\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u5c55\u5f00\uff1a<\/p>\n<ul>\n<li><strong>\u5185\u5b58\u5e03\u5c40<\/strong>\u3002\u7ed3\u5408 Curve \u8f6f\u4ef6\u8bf4\u660e\u5185\u5b58\u5e03\u5c40\u3002<\/li>\n<li><strong>\u5185\u5b58\u5206\u914d\u7b56\u7565<\/strong>\u3002\u8bf4\u660e\u5185\u5b58\u5206\u914d\u5668\u7684\u5fc5\u8981\u6027\uff0c\u4ee5\u53ca\u9700\u8981\u89e3\u51b3\u7684\u95ee\u9898\u548c\u5177\u6709\u7684\u7279\u70b9\uff0c\u7136\u540e\u901a\u8fc7\u4e3e\u4f8b\u8bf4\u660e\u5176\u4e2d\u4e00\u4e2a\u5185\u5b58\u5206\u914d\u5668\u7684\u5185\u5b58\u7ba1\u7406\u65b9\u6cd5\u3002<\/li>\n<li><strong>Curve \u7684\u5185\u5b58\u7ba1\u7406<\/strong>\u3002\u4ecb\u7ecd\u5f53\u524d Curve \u8f6f\u4ef6\u5185\u5b58\u5206\u914d\u5668\u7684\u9009\u62e9\u53ca\u539f\u56e0\u3002<\/li>\n<\/ul>\n<p><span id=\"OSC_h2_2\"><\/span><\/p>\n<h2>\u5185\u5b58\u5e03\u5c40<\/h2>\n<p>\u5728\u8bf4\u5185\u5b58\u7ba1\u7406\u4e4b\u524d\uff0c\u9996\u5148\u7b80\u8981\u4ecb\u7ecd\u4e0b\u5185\u5b58\u5e03\u5c40\u76f8\u5173\u77e5\u8bc6\u3002<\/p>\n<p>\u8f6f\u4ef6\u5728\u8fd0\u884c\u65f6\u9700\u8981\u5360\u7528\u4e00\u5b9a\u91cf\u7684\u5185\u5b58\u7528\u6765\u5b58\u653e\u4e00\u4e9b\u6570\u636e\uff0c\u4f46\u8fdb\u7a0b\u5e76\u4e0d\u76f4\u63a5\u4e0e\u5b58\u653e\u6570\u636e\u7684\u7269\u7406\u5185\u5b58\u6253\u4ea4\u9053\uff0c\u800c\u662f\u76f4\u63a5\u64cd\u4f5c\u865a\u62df\u5185\u5b58\u3002\u7269\u7406\u5185\u5b58\u662f\u771f\u5b9e\u7684\u5b58\u5728\uff0c\u5c31\u662f\u5185\u5b58\u6761\uff1b\u865a\u62df\u5185\u5b58\u4e3a\u8fdb\u7a0b\u9690\u85cf\u4e86\u7269\u7406\u5185\u5b58\u8fd9\u4e00\u6982\u5ff5\uff0c\u4e3a\u8fdb\u7a0b\u63d0\u4f9b\u4e86\u7b80\u6d01\u6613\u7528\u7684\u63a5\u53e3\u548c\u66f4\u52a0\u590d\u6742\u7684\u529f\u80fd\u3002\u672c\u6587\u8bf4\u7684\u5185\u5b58\u7ba1\u7406\u662f\u6307\u865a\u62df\u5185\u5b58\u7ba1\u7406\u3002\u4e3a\u4ec0\u4e48\u9700\u8981\u62bd\u8c61\u4e00\u5c42\u865a\u62df\u5185\u5b58\uff1f\u865a\u62df\u5185\u5b58\u548c\u7269\u7406\u5185\u5b58\u662f\u5982\u4f55\u6620\u5c04\u7ba1\u7406\u7684\uff1f\u7269\u7406\u5bfb\u5740\u662f\u600e\u4e48\u7684\uff1f\u8fd9\u4e9b\u865a\u62df\u5185\u5b58\u66f4\u4e0b\u5c42\u7684\u95ee\u9898\u4e0d\u5728\u672c\u6587\u8ba8\u8bba\u8303\u56f4\u3002<\/p>\n<p>Linux \u4e3a\u6bcf\u4e2a\u8fdb\u7a0b\u7ef4\u62a4\u4e86\u4e00\u4e2a\u5355\u72ec\u7684\u865a\u62df\u5730\u5740\u7a7a\u95f4\uff0c\u5305\u62ec\u4e24\u4e2a\u90e8\u5206\u8fdb\u7a0b\u865a\u62df\u5b58\u50a8\u5668\uff08\u7528\u6237\u7a7a\u95f4\uff09\u548c\u5185\u6838\u865a\u62df\u5b58\u50a8\u5668\uff08\u5185\u6838\u7a7a\u95f4\uff09\uff0c\u672c\u6587\u4e3b\u8981\u8ba8\u8bba\u8fdb\u7a0b\u53ef\u64cd\u4f5c\u7684\u7528\u6237\u7a7a\u95f4\uff0c\u5f62\u5f0f\u5982\u4e0b\u56fe\u3002<\/p>\n<p><img decoding=\"async\" class=\"zoom-in-cursor\" src=\"https:\/\/oscimg.oschina.net\/oscnet\/20201113184609122.png\" alt=\"\" \/><img loading=\"lazy\" decoding=\"async\" class=\"zoom-in-cursor\" src=\"https:\/\/oscimg.oschina.net\/oscnet\/up-64cc66d653210494f4d2b78841191e6363b.png\" alt=\"\" width=\"1150\" height=\"767\" \/><\/p>\n<p>\u73b0\u5728\u6211\u4eec\u4f7f\u7528<code>pmap<\/code>\u67e5\u770b\u8fd0\u884c\u4e2d\u7684 curve-mds \u865a\u62df\u7a7a\u95f4\u7684\u5206\u5e03\u3002<code>pmap<\/code>\u7528\u4e8e\u67e5\u770b\u8fdb\u7a0b\u7684\u5185\u5b58\u6620\u50cf\u4fe1\u606f\uff0c\u8be5\u547d\u4ee4\u8bfb\u53d6\u7684\u662f<code>\/proc\/[pid]\/maps<\/code>\u4e2d\u7684\u4fe1\u606f\u3002<\/p>\n<pre class=\"hljs yaml\"><code><span class=\"hljs-string\">\/\/<\/span> <span class=\"hljs-string\">pmap<\/span> <span class=\"hljs-string\">-X<\/span> <span class=\"hljs-string\">{\u8fdb\u7a0bid}<\/span> <span class=\"hljs-string\">\u67e5\u770b\u8fdb\u7a0b\u5185\u5b58\u5206\u5e03<\/span>\r\n<span class=\"hljs-string\">sudo<\/span> <span class=\"hljs-string\">pmap<\/span> <span class=\"hljs-string\">-X<\/span> <span class=\"hljs-number\">2804620<\/span>\r\n \r\n<span class=\"hljs-string\">\/\/<\/span> <span class=\"hljs-string\">pmap<\/span> <span class=\"hljs-string\">\u83b7\u53d6\u7684<\/span> <span class=\"hljs-string\">curve-mds<\/span> <span class=\"hljs-string\">\u5185\u5b58\u5206\u5e03\u6709\u5f88\u591a\u9879<\/span>\r\n<span class=\"hljs-string\">Address<\/span> <span class=\"hljs-string\">Perm<\/span>   <span class=\"hljs-string\">Offset<\/span> <span class=\"hljs-string\">Device<\/span>    <span class=\"hljs-string\">Inode<\/span>    <span class=\"hljs-string\">Size<\/span>   <span class=\"hljs-string\">Rss<\/span>   <span class=\"hljs-string\">Pss<\/span> <span class=\"hljs-string\">Referenced<\/span> <span class=\"hljs-string\">Anonymous<\/span> <span class=\"hljs-string\">ShmemPmdMapped<\/span> <span class=\"hljs-string\">Shared_Hugetlb<\/span> <span class=\"hljs-string\">Private_Hugetlb<\/span> <span class=\"hljs-string\">Swap<\/span> <span class=\"hljs-string\">SwapPss<\/span> <span class=\"hljs-string\">Locked<\/span> <span class=\"hljs-string\">Mapping<\/span>\r\n \r\n<span class=\"hljs-string\">\/\/<\/span> <span class=\"hljs-string\">\u4e3a\u4e86\u65b9\u4fbf\u5c55\u793a\u8fd9\u91cc\u628a\u4ece<\/span> <span class=\"hljs-string\">Pss<\/span> <span class=\"hljs-string\">\u540e\u9762\u7684\u6570\u503c\u5220\u9664\u4e86,<\/span> <span class=\"hljs-string\">\u4e2d\u95f4\u90e8\u5206\u5730\u5740\u505a\u4e86\u7701\u7565<\/span>\r\n<span class=\"hljs-attr\">2804620:<\/span>   <span class=\"hljs-string\">\/usr\/bin\/curve-mds<\/span> <span class=\"hljs-string\">-confPath=\/etc\/curve\/mds.conf<\/span> <span class=\"hljs-string\">-mdsAddr=127.0.0.1:6666<\/span> <span class=\"hljs-string\">-log_dir=\/data\/log\/curve\/mds<\/span> <span class=\"hljs-string\">-graceful_quit_on_sigterm=true<\/span> <span class=\"hljs-string\">-stderrthreshold=3<\/span>\r\n         <span class=\"hljs-string\">Address<\/span> <span class=\"hljs-string\">Perm<\/span>   <span class=\"hljs-string\">Offset<\/span> <span class=\"hljs-string\">Device<\/span>    <span class=\"hljs-string\">Inode<\/span>    <span class=\"hljs-string\">Size<\/span>   <span class=\"hljs-string\">Rss<\/span>   <span class=\"hljs-string\">Pss<\/span>   <span class=\"hljs-string\">Mapping<\/span>\r\n      <span class=\"hljs-string\">c000000000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-number\">65536<\/span>  <span class=\"hljs-number\">1852<\/span>  <span class=\"hljs-number\">1852<\/span>  \r\n    <span class=\"hljs-string\">559f0e2b9000<\/span> <span class=\"hljs-string\">r-xp<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">37763836<\/span>    <span class=\"hljs-number\">9112<\/span>  <span class=\"hljs-number\">6296<\/span>  <span class=\"hljs-number\">6296<\/span>   <span class=\"hljs-string\">curve-mds<\/span>\r\n    <span class=\"hljs-string\">559f0eb9f000<\/span> <span class=\"hljs-string\">r--p<\/span> <span class=\"hljs-number\">008e5000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">37763836<\/span>     <span class=\"hljs-number\">136<\/span>   <span class=\"hljs-number\">136<\/span>   <span class=\"hljs-number\">136<\/span>   <span class=\"hljs-string\">curve-mds<\/span>\r\n    <span class=\"hljs-string\">559f0ebc1000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00907000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">37763836<\/span>       <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-string\">curve-mds<\/span>\r\n    <span class=\"hljs-string\">559f0ebc2000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-number\">10040<\/span>  <span class=\"hljs-number\">4244<\/span>  <span class=\"hljs-number\">4244<\/span>\r\n    <span class=\"hljs-string\">559f1110a000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-number\">2912<\/span>  <span class=\"hljs-number\">2596<\/span>  <span class=\"hljs-number\">2596<\/span>   <span class=\"hljs-string\">[heap]<\/span>\r\n    <span class=\"hljs-string\">7f6124000000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">156<\/span>   <span class=\"hljs-number\">156<\/span>   <span class=\"hljs-number\">156<\/span>\r\n    <span class=\"hljs-string\">7f6124027000<\/span> <span class=\"hljs-string\">---p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-number\">65380<\/span>     <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">0<\/span>\r\n    <span class=\"hljs-string\">7f612b7ff000<\/span> <span class=\"hljs-string\">---p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>       <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">0<\/span>\r\n    <span class=\"hljs-string\">7f612b800000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-number\">8192<\/span>     <span class=\"hljs-number\">8<\/span>     <span class=\"hljs-number\">8<\/span>\r\n    <span class=\"hljs-string\">7f612c000000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">132<\/span>     <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>\r\n    <span class=\"hljs-string\">7f612c021000<\/span> <span class=\"hljs-string\">---p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-number\">65404<\/span>     <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">0<\/span>\r\n    <span class=\"hljs-string\">.....<\/span>\r\n    <span class=\"hljs-string\">7f6188cff000<\/span> <span class=\"hljs-string\">---p<\/span> <span class=\"hljs-string\">0026c000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">37750237<\/span>    <span class=\"hljs-number\">2044<\/span>     <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">0<\/span>\r\n    <span class=\"hljs-string\">7f61895b7000<\/span> <span class=\"hljs-string\">r-xp<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">50201214<\/span>      <span class=\"hljs-number\">96<\/span>    <span class=\"hljs-number\">96<\/span>     <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-string\">libpthread-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f61895cf000<\/span> <span class=\"hljs-string\">---p<\/span> <span class=\"hljs-number\">00018000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">50201214<\/span>    <span class=\"hljs-number\">2044<\/span>     <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-string\">libpthread-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f61897ce000<\/span> <span class=\"hljs-string\">r--p<\/span> <span class=\"hljs-number\">00017000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">50201214<\/span>       <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-string\">libpthread-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f61897cf000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00018000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">50201214<\/span>       <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-string\">libpthread-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f61897d0000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>      <span class=\"hljs-number\">16<\/span>     <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>    \r\n    <span class=\"hljs-string\">7f61897d4000<\/span> <span class=\"hljs-string\">r-xp<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">50200647<\/span>      <span class=\"hljs-number\">16<\/span>    <span class=\"hljs-number\">16<\/span>     <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-string\">libuuid.so.1.3.0<\/span>\r\n    <span class=\"hljs-string\">7f61897d8000<\/span> <span class=\"hljs-string\">---p<\/span> <span class=\"hljs-number\">00004000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">50200647<\/span>    <span class=\"hljs-number\">2044<\/span>     <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-string\">libuuid.so.1.3.0<\/span>\r\n    <span class=\"hljs-string\">7f61899d7000<\/span> <span class=\"hljs-string\">r--p<\/span> <span class=\"hljs-number\">00003000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">50200647<\/span>       <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-string\">libuuid.so.1.3.0<\/span>\r\n    <span class=\"hljs-string\">7f61899d8000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00004000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">50200647<\/span>       <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-string\">libuuid.so.1.3.0<\/span>\r\n    <span class=\"hljs-string\">7f61899d9000<\/span> <span class=\"hljs-string\">r-xp<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">37617895<\/span>    <span class=\"hljs-number\">9672<\/span>  <span class=\"hljs-number\">8904<\/span>  <span class=\"hljs-number\">8904<\/span>    <span class=\"hljs-string\">libetcdclient.so<\/span>\r\n    <span class=\"hljs-string\">7f618a34b000<\/span> <span class=\"hljs-string\">---p<\/span> <span class=\"hljs-number\">00972000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">37617895<\/span>    <span class=\"hljs-number\">2048<\/span>     <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-string\">libetcdclient.so<\/span>\r\n    <span class=\"hljs-string\">7f618a54b000<\/span> <span class=\"hljs-string\">r--p<\/span> <span class=\"hljs-number\">00972000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">37617895<\/span>    <span class=\"hljs-number\">6556<\/span>  <span class=\"hljs-number\">5664<\/span>  <span class=\"hljs-number\">5664<\/span>    <span class=\"hljs-string\">libetcdclient.so<\/span>\r\n    <span class=\"hljs-string\">7f618abb2000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-string\">00fd9000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">37617895<\/span>     <span class=\"hljs-number\">292<\/span>   <span class=\"hljs-number\">252<\/span>   <span class=\"hljs-number\">252<\/span>    <span class=\"hljs-string\">libetcdclient.so<\/span>\r\n    <span class=\"hljs-string\">7f618abfb000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">140<\/span>    <span class=\"hljs-number\">60<\/span>    <span class=\"hljs-number\">60<\/span>    \r\n    <span class=\"hljs-string\">7f618ac1e000<\/span> <span class=\"hljs-string\">r-xp<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">50201195<\/span>     <span class=\"hljs-number\">140<\/span>   <span class=\"hljs-number\">136<\/span>     <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-string\">ld-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f618ac4a000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-number\">1964<\/span>  <span class=\"hljs-number\">1236<\/span>  <span class=\"hljs-number\">1236<\/span>    \r\n    <span class=\"hljs-string\">7f618ae41000<\/span> <span class=\"hljs-string\">r--p<\/span> <span class=\"hljs-number\">00023000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">50201195<\/span>       <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-string\">ld-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f618ae42000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00024000<\/span>  <span class=\"hljs-number\">41<\/span><span class=\"hljs-string\">:42<\/span> <span class=\"hljs-number\">50201195<\/span>       <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-string\">ld-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f618ae43000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>       <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">4<\/span>    \r\n    <span class=\"hljs-string\">7fffffd19000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">132<\/span>    <span class=\"hljs-number\">24<\/span>    <span class=\"hljs-number\">24<\/span>    <span class=\"hljs-string\">[stack]<\/span>\r\n    <span class=\"hljs-string\">7fffffdec000<\/span> <span class=\"hljs-string\">r--p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>       <span class=\"hljs-number\">8<\/span>     <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-string\">[vvar]<\/span>\r\n    <span class=\"hljs-string\">7fffffdee000<\/span> <span class=\"hljs-string\">r-xp<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>       <span class=\"hljs-number\">8<\/span>     <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-string\">[vdso]<\/span>\r\n<span class=\"hljs-string\">ffffffffff600000<\/span> <span class=\"hljs-string\">r-xp<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>       <span class=\"hljs-number\">4<\/span>     <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-string\">[vsyscall]<\/span>\r\n                                               <span class=\"hljs-string\">=======<\/span> <span class=\"hljs-string\">=====<\/span> <span class=\"hljs-string\">=====<\/span> \r\n                                               <span class=\"hljs-number\">1709344<\/span> <span class=\"hljs-number\">42800<\/span> <span class=\"hljs-number\">37113<\/span> <\/code><\/pre>\n<ol>\n<li>\u4e0a\u9762\u8f93\u51fa\u4e2d\u8fdb\u7a0b\u5b9e\u9645\u5360\u7528\u7684\u7a7a\u95f4\u662f\u4ece 0x559f0e2b9000 \u5f00\u59cb\uff0c\u4e0d\u662f\u5185\u5b58\u5206\u5e03\u56fe\u4e0a\u753b\u7684 0x40000000\u3002\u8fd9\u662f\u56e0\u4e3a\u5730\u5740\u7a7a\u95f4\u5206\u5e03\u968f\u673a\u5316\uff08ASLR\uff09\uff0c\u5b83\u7684\u4f5c\u7528\u662f\u968f\u673a\u751f\u6210\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\uff08\u4f8b\u5982\u6808\u3001\u5e93\u6216\u8005\u5806\uff09\u7684\u5173\u952e\u90e8\u5206\u7684\u8d77\u59cb\u5730\u5740\uff0c\u76ee\u7684\u662f\u589e\u5f3a\u7cfb\u7edf\u5b89\u5168\u6027\u3001\u907f\u514d\u6076\u610f\u7a0b\u5e8f\u5bf9\u5df2\u77e5\u5730\u5740\u653b\u51fb\u3002Linux \u4e2d<code>\/proc\/sys\/kernel\/randomize_va_space<\/code>\u7684\u503c\u4e3a 1 \u6216 2 \u8868\u793a\u5730\u5740\u7a7a\u95f4\u968f\u673a\u5316\u5df2\u5f00\u542f\uff0c\u6570\u503c1\u30012\u7684\u533a\u522b\u5728\u4e8e\u968f\u673a\u5316\u7684\u5173\u952e\u90e8\u5206\u4e0d\u540c\uff1b0\u8868\u793a\u5173\u95ed\u3002<\/li>\n<li>\u63a5\u4e0b\u6765 0x559f0e2b9000 0x559f0eb9f000 0x559f0ebc1000 \u4e09\u4e2a\u5730\u5740\u8d77\u59cb\u5bf9\u5e94\u7684\u6587\u4ef6\u90fd\u662fcurve-mds \uff0c\u4f46\u662f\u5bf9\u8be5\u6587\u4ef6\u7684\u62e5\u6709\u4e0d\u540c\u7684\u6743\u9650\uff0c\u5404\u5b57\u6bcd\u4ee3\u8868\u7684\u6743\u9650<code>r-\u8bfb w-\u5199 x-\u53ef\u6267\u884c p-\u79c1\u6709 s-\u5171\u4eab<\/code>\u3002curve-mds \u662f<code>elf<\/code>\u7c7b\u578b\u6587\u4ef6\uff0c\u4ece\u5185\u5bb9\u7684\u89d2\u5ea6\u770b\uff0c\u5b83\u5305\u542b\u4ee3\u7801\u6bb5\u3001\u6570\u636e\u6bb5\u3001BSS\u6bb5\u7b49\uff1b\u4ece\u88c5\u8f7d\u5230\u5185\u5b58\u89d2\u5ea6\u770b\uff0c\u64cd\u4f5c\u7cfb\u7edf\u4e0d\u5173\u5fc3\u5404\u6bb5\u6240\u5305\u542b\u7684\u5185\u5bb9\uff0c\u53ea\u5173\u5fc3\u8ddf\u88c5\u8f7d\u76f8\u5173\u7684\u95ee\u9898\uff0c\u4e3b\u8981\u662f\u6743\u9650\uff0c\u6240\u4ee5\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u628a\u76f8\u540c\u6743\u9650\u7684\u6bb5\u5408\u5e76\u5728\u4e00\u8d77\u53bb\u52a0\u8f7d\uff0c\u5c31\u662f\u6211\u4eec\u8fd9\u91cc\u770b\u5230\u7684\u4ee5\u4ee3\u7801\u6bb5\u4e3a\u4ee3\u8868\u7684\u6743\u9650\u4e3a\u53ef\u8bfb\u53ef\u6267\u884c\u7684\u6bb5\u3001\u4ee5\u53ea\u8bfb\u6570\u636e\u4e3a\u4ee3\u8868\u7684\u6743\u9650\u4e3a\u53ea\u8bfb\u7684\u6bb5\u3001\u4ee5\u6570\u636e\u6bb5\u548c BSS \u6bb5\u4e3a\u4ee3\u8868\u7684\u6743\u9650\u4e3a\u53ef\u8bfb\u53ef\u5199\u7684\u6bb5\u3002<\/li>\n<li>\u518d\u5f80\u4e0b 0x559f1110a000 \u5f00\u59cb\uff0c\u5bf9\u5e94\u4e0a\u56fe\u7684\u8fd0\u884c\u65f6\u5806\uff0c\u8fd0\u884c\u65f6\u52a8\u6001\u5206\u914d\u7684\u5185\u5b58\u4f1a\u5728\u8fd9\u4e0a\u9762\u8fdb\u884c \u3002\u6211\u4eec\u53d1\u73b0\u4e5f\u662f\u5728<code>.bss<\/code>\u6bb5\u7684\u7ed3\u675f\u4f4d\u7f6e\u8fdb\u884c\u4e86\u968f\u673a\u504f\u79fb\u3002<\/li>\n<li>\u63a5\u7740 0x7f6124000000 \u5f00\u59cb\uff0c\u5bf9\u5e94\u7684\u662f\u4e0a\u56fe mmap \u5185\u5b58\u6620\u5c04\u533a\u57df\uff0c\u8fd9\u4e00\u533a\u57df\u5305\u542b\u52a8\u6001\u5e93\u3001\u7528\u6237\u7533\u8bf7\u7684\u5927\u7247\u5185\u5b58\u7b49\u3002\u5230\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u770b\u5230<code>Heap<\/code>\u548c<code>Memory Mapping Region<\/code>\u90fd\u53ef\u4ee5\u7528\u4e8e\u7a0b\u5e8f\u4e2d\u4f7f\u7528<code>malloc<\/code>\u52a8\u6001\u5206\u914d\u7684\u5185\u5b58\uff0c\u5728\u4e0b\u4e00\u8282\u5185\u5b58\u5206\u914d\u7b56\u7565\u4e2d\u4f1a\u6709\u5c55\u5f00\uff0c\u4e5f\u662f\u672c\u6587\u5173\u6ce8\u91cd\u70b9\u3002<\/li>\n<li>\u63a5\u7740 0x7fffffd19000 \u5f00\u59cb\u662f\u6808\u7a7a\u95f4\uff0c\u4e00\u822c\u6709\u6570\u5146\u5b57\u8282\u3002<\/li>\n<li>\u6700\u540e vvar\u3001vdso\u3001vsyscall \u533a\u57df\u662f\u4e3a\u4e86\u5b9e\u73b0\u865a\u62df\u51fd\u6570\u8c03\u7528\u4ee5\u52a0\u901f\u90e8\u5206\u7cfb\u7edf\u8c03\u7528\uff0c\u4f7f\u5f97\u7a0b\u5e8f\u53ef\u4ee5\u4e0d\u8fdb\u5165\u5185\u6838\u60011\u76f4\u63a5\u8c03\u7528\u7cfb\u7edf\u8c03\u7528\u3002\u8fd9\u91cc\u4e0d\u5177\u4f53\u5c55\u5f00\u3002<\/li>\n<\/ol>\n<p><span id=\"OSC_h2_3\"><\/span><\/p>\n<h2>\u5185\u5b58\u5206\u914d\u7b56\u7565<\/h2>\n<p>\u6211\u4eec\u5e73\u65f6\u4f7f\u7528<code>malloc<\/code>\u5206\u914d\u51fa\u6765\u7684\u5185\u5b58\u662f\u5728<code>Heap<\/code>\u548c<code>Memory Mapping Region<\/code>\u8fd9\u4e24\u4e2a\u533a\u57df\u3002mallloc \u5b9e\u9645\u4e0a\u7531\u4e24\u4e2a\u7cfb\u7edf\u8c03\u7528\u5b8c\u6210\uff1a<code>brk<\/code>\u548c<code>mmap<\/code><\/p>\n<ul>\n<li>brk \u5206\u914d\u7684\u533a\u57df\u5bf9\u5e94\u5806 heap<\/li>\n<li>mmap \u5206\u914d\u7684\u533a\u57df\u5bf9\u5e94 Memory Mapping Region<\/li>\n<\/ul>\n<p>\u5982\u679c\u8ba9\u6bcf\u4e2a\u5f00\u53d1\u8005\u5728\u8f6f\u4ef6\u5f00\u53d1\u65f6\u90fd\u76f4\u63a5\u4f7f\u7528\u7cfb\u7edf\u8c03 brk \u548c mmap \u7528\u53bb\u5206\u914d\u91ca\u653e\u5185\u5b58\uff0c\u90a3\u5f00\u53d1\u6548\u7387\u5c06\u4f1a\u53d8\u5f97\u5f88\u4f4e\uff0c\u800c\u4e14\u4e5f\u5f88\u5bb9\u6613\u51fa\u9519\u3002\u4e00\u822c\u6765\u8bf4\u6211\u4eec\u5728\u5f00\u53d1\u4e2d\u90fd\u4f1a\u76f4\u63a5\u4f7f\u7528\u5185\u5b58\u7ba1\u7406\u5e93\uff0c\u5f53\u524d\u4e3b\u6d41\u7684\u5185\u5b58\u7ba1\u7406\u5668\u6709\u4e09\u79cd\uff1a<code>ptmalloc``tcmalloc``jemalloc<\/code>, \u90fd\u63d0\u4f9b<code>malloc, free<\/code>\u63a5\u53e3\uff0cglibc \u9ed8\u8ba4\u4f7f\u7528ptmalloc\u3002\u8fd9\u4e9b\u5e93\u7684\u4f5c\u7528\u662f\u7ba1\u7406\u5b83\u901a\u8fc7\u7cfb\u7edf\u8c03\u7528\u83b7\u5f97\u7684\u5185\u5b58\u533a\u57df\uff0c\u4e00\u822c\u6765\u8bf4\u4e00\u4e2a\u4f18\u79c0\u7684\u901a\u7528\u5185\u5b58\u5206\u914d\u5668\u5e94\u8be5\u5177\u6709\u4ee5\u4e0b\u7279\u5f81\uff1a<\/p>\n<ol>\n<li>\u989d\u5916\u7684\u7a7a\u95f4\u635f\u8017\u91cf\u5c3d\u91cf\u5c11\u3002\u6bd4\u5982\u5e94\u7528\u7a0b\u5e8f\u53ea\u9700\u89815k\u5185\u5b58\uff0c\u7ed3\u679c\u5206\u914d\u5668\u7ed9\u4ed6\u5206\u914d\u4e8610k\uff0c\u4f1a\u9020\u6210\u7a7a\u95f4\u7684\u6d6a\u8d39\u3002<\/li>\n<li>\u5206\u914d\u7684\u901f\u5ea6\u5c3d\u53ef\u80fd\u5feb\u3002<\/li>\n<li>\u5c3d\u91cf\u907f\u514d\u5185\u5b58\u788e\u7247\u3002\u4e0b\u9762\u6211\u4eec\u7ed3\u5408\u56fe\u6765\u76f4\u89c2\u7684\u611f\u53d7\u4e0b\u5185\u5b58\u788e\u7247\u3002<\/li>\n<li>\u901a\u7528\u6027\u3001\u517c\u5bb9\u6027\u3001\u53ef\u79fb\u690d\u6027\u3001\u6613\u8c03\u8bd5\u3002<\/li>\n<\/ol>\n<p>\u6211\u4eec\u901a\u8fc7\u4e0b\u9762\u4e00\u5e45\u56fe\u76f4\u89c2\u8bf4\u660e\u4e0b glibc \u9ed8\u8ba4\u7684\u5185\u5b58\u7ba1\u7406\u5668 ptmalloc \u5728\u5355\u7ebf\u7a0b\u60c5\u51b5\u4e0b\u5806\u5185\u5b58\u7684\u56de\u6536\u548c\u5206\u914d\uff1a<\/p>\n<p><img decoding=\"async\" class=\"zoom-in-cursor\" src=\"https:\/\/oscimg.oschina.net\/oscnet\/20201113184745349.png\" alt=\"\" \/><img loading=\"lazy\" decoding=\"async\" class=\"zoom-in-cursor\" src=\"https:\/\/oscimg.oschina.net\/oscnet\/up-a77784e9f239cb0eeec4c85254358f0c496.png\" alt=\"\" width=\"755\" height=\"932\" \/><\/p>\n<ol>\n<li><code>malloc(30k)<\/code>\u901a\u8fc7\u7cfb\u7edf\u8c03\u7528 brk \u6269\u5c55\u5806\u9876\u7684\u65b9\u5f0f\u5206\u914d\u5185\u5b58\u3002<\/li>\n<li><code>malloc(20k)<\/code>\u901a\u8fc7\u7cfb\u7edf\u8c03\u7528 brk \u7ee7\u7eed\u6269\u5c55\u5806\u9876\u3002<\/li>\n<li><code>malloc(200k)<\/code>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u8bf7\u6c42\u5185\u5b58\u5927\u4e8e 128K \uff08\u7531<code>M_MMAP_THRESHOLD<\/code>\u786e\u5b9a\uff0c\u9ed8\u8ba4\u5927\u5c0f\u4e3a128K\uff0c\u53ef\u4ee5\u8c03\u6574\uff09\uff0c\u5c31\u5229\u7528\u7cfb\u7edf\u8c03\u7528 mmap\u5206\u914d\u5185\u5b58\u3002<\/li>\n<li><code>free(30k)<\/code>\u8fd9\u90e8\u5206\u7a7a\u95f4\u5e76\u6ca1\u6709\u5f52\u8fd8\u7ed9\u7cfb\u7edf\uff0c\u800c\u662f ptmalloc \u7ba1\u7406\u7740\u3002\u75311\u30012\u4e24\u6b65\u7684 malloc \u53ef\u4ee5\u770b\u51fa\uff0c\u6211\u4eec\u5206\u914d\u7a7a\u95f4\u7684\u65f6\u5019\u8c03\u7528 brk \u8fdb\u884c\u5806\u9876\u6269\u5c55\uff0c\u90a3\u5f52\u8fd8\u7a7a\u95f4\u7ed9\u7cfb\u7edf\u662f\u76f8\u53cd\u64cd\u4f5c\u5373\u6536\u7f29\u5806\u9876\u3002\u8fd9\u91cc\u7531\u4e8e\u7b2c\u4e8c\u6b65 malloc(20k) \u7684\u7a7a\u95f4\u5e76\u672a\u91ca\u653e\uff0c\u6240\u4ee5\u6b64\u65f6\u5806\u9876\u65e0\u6cd5\u6536\u7f29\u3002\u8fd9\u90e8\u5206\u7a7a\u95f4\u662f\u53ef\u4ee5\u88ab\u518d\u5206\u914d\u7684\uff0c\u6bd4\u5982\u6b64\u65f6 malloc(10k)\uff0c\u90a3\u53ef\u4ee5\u4ece\u8fd9\u91cc\u5206\u914d 10k \u7a7a\u95f4\uff0c\u800c\u4e0d\u9700\u8981\u901a\u8fc7 brk \u53bb\u7533\u8bf7\u3002\u8003\u8651\u8fd9\u6837\u4e00\u79cd\u60c5\u51b5\uff0c\u5806\u9876\u7684\u7a7a\u95f4\u4e00\u76f4\u88ab\u5360\u7528\uff0c\u5806\u9876\u5411\u4e0b\u7684\u7a7a\u95f4\u6709\u90e8\u5206\u88ab\u5e94\u7528\u7a0b\u5e8f\u91ca\u653e\u4f46\u7531\u4e8e\u7a7a\u95f4\u4e0d\u591f\u6ca1\u6709\u518d\u88ab\u4f7f\u7528\uff0c\u5c31\u4f1a\u5f62\u6210<code>\u5185\u5b58\u788e\u7247<\/code>\u3002<\/li>\n<li><code>free(20k)<\/code>\u8fd9\u90e8\u5206\u7a7a\u95f4\u5e94\u7528\u7a0b\u5e8f\u91ca\u653e\u540e\uff0cptmalloc \u4f1a\u628a\u521a\u624d\u7684 20k \u548c 30k \u7684\u533a\u57df\u5408\u5e76\uff0c\u5982\u679c\u5806\u9876\u7a7a\u95f2\u8d85\u8fc7<code>M_TRIM_THREASHOLD<\/code>\uff0c\u4f1a\u628a\u8fd9\u5757\u533a\u57df\u6536\u7f29\u5f52\u8fd8\u7ed9\u64cd\u4f5c\u7cfb\u7edf\u3002<\/li>\n<li><code>free(200k)<\/code>mmap\u5206\u914d\u51fa\u6765\u7684\u7a7a\u95f4\u4f1a\u76f4\u63a5\u5f52\u8fd8\u7ed9\u7cfb\u7edf\u3002<\/li>\n<\/ol>\n<p>\u90a3\u5bf9\u4e8e\u591a\u7ebf\u7a0b\u7a0b\u5e8f\uff0cptmalloc \u53c8\u662f\u600e\u4e48\u533a\u5206\u914d\u7684\uff1f\u591a\u7ebf\u7a0b\u60c5\u51b5\u4e0b\u9700\u8981\u5904\u7406\u5404\u7ebf\u7a0b\u95f4\u7684\u7ade\u4e89\uff0c\u5982\u679c\u8fd8\u662f\u6309\u7167\u4e4b\u524d\u7684\u65b9\u5f0f\uff0c\u5c0f\u4e8e<code>HEAP_MAX_SIZE<\/code>\uff08 64 \u4f4d\u7cfb\u7edf\u9ed8\u8ba4\u5927\u5c0f\u4e3a 64M \uff09\u7684\u7a7a\u95f4\u4f7f\u7528 brk \u6269\u5c55\u5806\u9876\uff0c \u5927\u4e8e<code>HEAP_MAX_SIZE<\/code>\u7684\u7a7a\u95f4\u4f7f\u7528 mmap \u7533\u8bf7\uff0c\u90a3\u5bf9\u4e8e\u7ebf\u7a0b\u6570\u91cf\u8f83\u591a\u7684\u7a0b\u5e8f\uff0c\u5982\u679c\u6bcf\u4e2a\u7ebf\u7a0b\u4e0a\u5b58\u5728\u6bd4\u8f83\u9891\u7e41\u7684\u5185\u5b58\u5206\u914d\u64cd\u4f5c\uff0c\u7ade\u4e89\u4f1a\u5f88\u6fc0\u70c8\u3002ptmalloc \u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u591a\u4e2a\u5206\u914d\u533a\u57df\uff0c\u5305\u542b\u4e24\u79cd\u7c7b\u578b\u5206\u914d\u533a\uff1a\u4e3b\u5206\u914d\u533a \u548c \u52a8\u6001\u5206\u914d\u533a\u3002<\/p>\n<ul>\n<li>\u4e3b\u5206\u914d\u533a\uff1a\u4f1a\u5728<code>Heap<\/code>\u548c<code>Memory Mapping Region<\/code>\u8fd9\u4e24\u4e2a\u533a\u57df\u5206\u914d\u5185\u5b58<\/li>\n<li>\u52a8\u6001\u5206\u914d\u533a\uff1a\u5728<code>Memory Mapping Region<\/code>\u533a\u57df\u5206\u914d\u5185\u5b58\uff0c\u5728 64 \u4f4d\u7cfb\u7edf\u4e2d\u9ed8\u8ba4\u6bcf\u6b21\u7533\u8bf7\u7684\u5927\u5c0f\u4f4d\u3002Main \u7ebf\u7a0b\u548c\u5148\u6267\u884c malloc \u7684\u7ebf\u7a0b\u4f7f\u7528\u4e0d\u540c\u7684\u52a8\u6001\u5206\u914d\u533a\uff0c\u52a8\u6001\u5206\u914d\u533a\u7684\u6570\u91cf\u4e00\u65e6\u589e\u52a0\u5c31\u4e0d\u4f1a\u51cf\u5c11\u4e86\u3002\u52a8\u6001\u5206\u914d\u533a\u7684\u6570\u91cf\u5bf9\u4e8e 32 \u4f4d\u7cfb\u7edf\u6700\u591a\u662f ( 2 number of cores + 1 ) \u4e2a\uff0c\u5bf9\u4e8e 64 \u4f4d\u7cfb\u7edf\u6700\u591a\u662f\uff08 8 number of cores + 1 \uff09\u4e2a\u3002<\/li>\n<\/ul>\n<p>\u4e3e\u4e2a\u591a\u7ebf\u7a0b\u7684\u4f8b\u5b50\u6765\u770b\u4e0b\u8fd9\u79cd\u60c5\u51b5\u4e0b\u7684\u7a7a\u95f4\u5206\u914d\uff1a<\/p>\n<pre class=\"hljs cpp\"><code><span class=\"hljs-comment\">\/\/ \u5171\u6709\u4e09\u4e2a\u7ebf\u7a0b<\/span>\r\n<span class=\"hljs-comment\">\/\/ \u4e3b\u7ebf\u7a0b\uff1a\u5206\u914d\u4e00\u6b21 4k \u7a7a\u95f4<\/span>\r\n<span class=\"hljs-comment\">\/\/ \u7ebf\u7a0b1: \u5206\u914d 100 \u6b21 4k \u7a7a\u95f4<\/span>\r\n<span class=\"hljs-comment\">\/\/ \u7ebf\u7a0b2: \u5206\u914d 100 \u6b21 4k \u7a7a\u95f4<\/span>\r\n<span class=\"hljs-meta\">#<span class=\"hljs-meta-keyword\">include<\/span> <span class=\"hljs-meta-string\">&lt;stdio.h&gt;<\/span><\/span>\r\n<span class=\"hljs-meta\">#<span class=\"hljs-meta-keyword\">include<\/span> <span class=\"hljs-meta-string\">&lt;stdlib.h&gt;<\/span><\/span>\r\n<span class=\"hljs-meta\">#<span class=\"hljs-meta-keyword\">include<\/span> <span class=\"hljs-meta-string\">&lt;pthread.h&gt;<\/span><\/span>\r\n<span class=\"hljs-meta\">#<span class=\"hljs-meta-keyword\">include<\/span> <span class=\"hljs-meta-string\">&lt;unistd.h&gt;<\/span><\/span>\r\n<span class=\"hljs-meta\">#<span class=\"hljs-meta-keyword\">include<\/span> <span class=\"hljs-meta-string\">&lt;sys\/types.h&gt;<\/span><\/span>\r\n \r\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">void<\/span>* <span class=\"hljs-title\">threadFunc<\/span><span class=\"hljs-params\">(<span class=\"hljs-keyword\">void<\/span>* id)<\/span> <\/span>{\r\n\t\t<span class=\"hljs-built_in\">std<\/span>::<span class=\"hljs-built_in\">vector<\/span>&lt;<span class=\"hljs-keyword\">char<\/span> *&gt; malloclist;\r\n\t\t<span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-keyword\">int<\/span> i = <span class=\"hljs-number\">0<\/span>; i &lt; <span class=\"hljs-number\">100<\/span>; i++) {\r\n\t\t  malloclist.emplace_back((<span class=\"hljs-keyword\">char<\/span>*) <span class=\"hljs-built_in\">malloc<\/span>(<span class=\"hljs-number\">1024<\/span> * <span class=\"hljs-number\">4<\/span>));\r\n\t\t}\r\n \r\n\t\tsleep(<span class=\"hljs-number\">300<\/span>); <span class=\"hljs-comment\">\/\/ \u8fd9\u91cc\u7b49\u5f85\u662f\u4e3a\u67e5\u770b\u5185\u5b58\u5206\u5e03<\/span>\r\n}\r\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">int<\/span> <span class=\"hljs-title\">main<\/span><span class=\"hljs-params\">()<\/span> <\/span>{\r\n    <span class=\"hljs-keyword\">pthread_t<\/span> t1,t2;\r\n\t\t<span class=\"hljs-keyword\">int<\/span> id1 = <span class=\"hljs-number\">1<\/span>;\r\n\t\t<span class=\"hljs-keyword\">int<\/span> id2 = <span class=\"hljs-number\">2<\/span>;\r\n    <span class=\"hljs-keyword\">void<\/span>* s;\r\n    <span class=\"hljs-keyword\">int<\/span> ret;\r\n    <span class=\"hljs-keyword\">char<\/span>* addr;\r\n \r\n    addr = (<span class=\"hljs-keyword\">char<\/span>*) <span class=\"hljs-built_in\">malloc<\/span>(<span class=\"hljs-number\">4<\/span> * <span class=\"hljs-number\">1024<\/span>);\r\n    pthread_create(&amp;t1, <span class=\"hljs-literal\">NULL<\/span>, threadFunc, (<span class=\"hljs-keyword\">void<\/span> *) &amp;id1);\r\n    pthread_create(&amp;t2, <span class=\"hljs-literal\">NULL<\/span>, threadFunc, (<span class=\"hljs-keyword\">void<\/span> *) &amp;id2);\r\n \r\n\t\tpthread_join(t1, <span class=\"hljs-literal\">NULL<\/span>);\r\n\t\tpthread_join(t2, <span class=\"hljs-literal\">NULL<\/span>);\r\n    <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">0<\/span>;\r\n}<\/code><\/pre>\n<p>\u6211\u4eec\u7528 pmap \u67e5\u770b\u4e0b\u8be5\u7a0b\u5e8f\u7684\u5185\u5b58\u5206\u5e03\u60c5\u51b5\uff1a<\/p>\n<pre class=\"hljs yaml\"><code><span class=\"hljs-attr\">741545:<\/span>   <span class=\"hljs-string\">.\/memory_test<\/span>\r\n         <span class=\"hljs-string\">Address<\/span> <span class=\"hljs-string\">Perm<\/span>   <span class=\"hljs-string\">Offset<\/span> <span class=\"hljs-string\">Device<\/span>    <span class=\"hljs-string\">Inode<\/span>   <span class=\"hljs-string\">Size<\/span>  <span class=\"hljs-string\">Rss<\/span> <span class=\"hljs-string\">Pss<\/span>  <span class=\"hljs-string\">Mapping<\/span>\r\n    <span class=\"hljs-string\">56127705a000<\/span> <span class=\"hljs-string\">r-xp<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">08<\/span><span class=\"hljs-string\">:02<\/span> <span class=\"hljs-number\">62259273<\/span>      <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-number\">4<\/span>  <span class=\"hljs-string\">memory_test<\/span>\r\n    <span class=\"hljs-string\">56127725a000<\/span> <span class=\"hljs-string\">r--p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">08<\/span><span class=\"hljs-string\">:02<\/span> <span class=\"hljs-number\">62259273<\/span>      <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-number\">4<\/span>  <span class=\"hljs-string\">memory_test<\/span>\r\n    <span class=\"hljs-string\">56127725b000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00001000<\/span>  <span class=\"hljs-number\">08<\/span><span class=\"hljs-string\">:02<\/span> <span class=\"hljs-number\">62259273<\/span>      <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-number\">4<\/span>  <span class=\"hljs-string\">memory_test<\/span>\r\n    <span class=\"hljs-string\">5612784b9000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-number\">132<\/span>    <span class=\"hljs-number\">8<\/span>   <span class=\"hljs-number\">8<\/span>  <span class=\"hljs-string\">[heap]<\/span>\r\n    <span class=\"hljs-string\">**7f0df0000000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-number\">404<\/span>  <span class=\"hljs-number\">404<\/span> <span class=\"hljs-number\">404<\/span>  \r\n    <span class=\"hljs-string\">7f0df0065000<\/span> <span class=\"hljs-string\">---p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>  <span class=\"hljs-number\">65132<\/span>    <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-number\">0<\/span>  \r\n    <span class=\"hljs-string\">7f0df8000000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-number\">404<\/span>  <span class=\"hljs-number\">404<\/span> <span class=\"hljs-number\">404<\/span>  \r\n    <span class=\"hljs-string\">7f0df8065000<\/span> <span class=\"hljs-string\">---p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>  <span class=\"hljs-number\">65132<\/span>    <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-number\">0<\/span><span class=\"hljs-string\">**<\/span>  \r\n    <span class=\"hljs-string\">7f0dff467000<\/span> <span class=\"hljs-string\">---p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>      <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-number\">0<\/span>  \r\n    <span class=\"hljs-string\">7f0dff468000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-number\">8192<\/span>    <span class=\"hljs-number\">8<\/span>   <span class=\"hljs-number\">8<\/span>  \r\n    <span class=\"hljs-string\">7f0dffc68000<\/span> <span class=\"hljs-string\">---p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>      <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-number\">0<\/span>  \r\n    <span class=\"hljs-string\">7f0dffc69000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-number\">8192<\/span>    <span class=\"hljs-number\">8<\/span>   <span class=\"hljs-number\">8<\/span>  \r\n    <span class=\"hljs-string\">7f0e00469000<\/span> <span class=\"hljs-string\">r-xp<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">08<\/span><span class=\"hljs-string\">:02<\/span> <span class=\"hljs-number\">50856517<\/span>   <span class=\"hljs-number\">1620<\/span> <span class=\"hljs-number\">1052<\/span>   <span class=\"hljs-number\">9<\/span>   <span class=\"hljs-string\">libc-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f0e005fe000<\/span> <span class=\"hljs-string\">---p<\/span> <span class=\"hljs-number\">00195000<\/span>  <span class=\"hljs-number\">08<\/span><span class=\"hljs-string\">:02<\/span> <span class=\"hljs-number\">50856517<\/span>   <span class=\"hljs-number\">2048<\/span>    <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-string\">libc-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f0e007fe000<\/span> <span class=\"hljs-string\">r--p<\/span> <span class=\"hljs-number\">00195000<\/span>  <span class=\"hljs-number\">08<\/span><span class=\"hljs-string\">:02<\/span> <span class=\"hljs-number\">50856517<\/span>     <span class=\"hljs-number\">16<\/span>   <span class=\"hljs-number\">16<\/span>  <span class=\"hljs-number\">16<\/span>   <span class=\"hljs-string\">libc-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f0e00802000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00199000<\/span>  <span class=\"hljs-number\">08<\/span><span class=\"hljs-string\">:02<\/span> <span class=\"hljs-number\">50856517<\/span>      <span class=\"hljs-number\">8<\/span>    <span class=\"hljs-number\">8<\/span>   <span class=\"hljs-number\">8<\/span>   <span class=\"hljs-string\">libc-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f0e00804000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">16<\/span>   <span class=\"hljs-number\">12<\/span>  <span class=\"hljs-number\">12<\/span>   \r\n    <span class=\"hljs-string\">7f0e00808000<\/span> <span class=\"hljs-string\">r-xp<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">08<\/span><span class=\"hljs-string\">:02<\/span> <span class=\"hljs-number\">50856539<\/span>     <span class=\"hljs-number\">96<\/span>   <span class=\"hljs-number\">96<\/span>   <span class=\"hljs-number\">1<\/span>   <span class=\"hljs-string\">libpthread-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f0e00820000<\/span> <span class=\"hljs-string\">---p<\/span> <span class=\"hljs-number\">00018000<\/span>  <span class=\"hljs-number\">08<\/span><span class=\"hljs-string\">:02<\/span> <span class=\"hljs-number\">50856539<\/span>   <span class=\"hljs-number\">2044<\/span>    <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-string\">libpthread-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f0e00a1f000<\/span> <span class=\"hljs-string\">r--p<\/span> <span class=\"hljs-number\">00017000<\/span>  <span class=\"hljs-number\">08<\/span><span class=\"hljs-string\">:02<\/span> <span class=\"hljs-number\">50856539<\/span>      <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-string\">libpthread-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f0e00a20000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00018000<\/span>  <span class=\"hljs-number\">08<\/span><span class=\"hljs-string\">:02<\/span> <span class=\"hljs-number\">50856539<\/span>      <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-string\">libpthread-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f0e00a21000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">16<\/span>    <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-number\">4<\/span>   \r\n    <span class=\"hljs-string\">7f0e00a25000<\/span> <span class=\"hljs-string\">r-xp<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">08<\/span><span class=\"hljs-string\">:02<\/span> <span class=\"hljs-number\">50856513<\/span>    <span class=\"hljs-number\">140<\/span>  <span class=\"hljs-number\">140<\/span>   <span class=\"hljs-number\">1<\/span>   <span class=\"hljs-string\">ld-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f0e00c31000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>     <span class=\"hljs-number\">16<\/span>   <span class=\"hljs-number\">16<\/span>  <span class=\"hljs-number\">16<\/span>   \r\n    <span class=\"hljs-string\">7f0e00c48000<\/span> <span class=\"hljs-string\">r--p<\/span> <span class=\"hljs-number\">00023000<\/span>  <span class=\"hljs-number\">08<\/span><span class=\"hljs-string\">:02<\/span> <span class=\"hljs-number\">50856513<\/span>      <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-string\">ld-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f0e00c49000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00024000<\/span>  <span class=\"hljs-number\">08<\/span><span class=\"hljs-string\">:02<\/span> <span class=\"hljs-number\">50856513<\/span>      <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-string\">ld-2.24.so<\/span>\r\n    <span class=\"hljs-string\">7f0e00c4a000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>      <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-number\">4<\/span>   \r\n    <span class=\"hljs-string\">7ffe340be000<\/span> <span class=\"hljs-string\">rw-p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>    <span class=\"hljs-number\">132<\/span>   <span class=\"hljs-number\">12<\/span>  <span class=\"hljs-number\">12<\/span>   <span class=\"hljs-string\">[stack]<\/span>\r\n    <span class=\"hljs-string\">7ffe3415c000<\/span> <span class=\"hljs-string\">r--p<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>      <span class=\"hljs-number\">8<\/span>    <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-string\">[vvar]<\/span>\r\n    <span class=\"hljs-string\">7ffe3415e000<\/span> <span class=\"hljs-string\">r-xp<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>      <span class=\"hljs-number\">8<\/span>    <span class=\"hljs-number\">4<\/span>   <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-string\">[vdso]<\/span>\r\n<span class=\"hljs-string\">ffffffffff600000<\/span> <span class=\"hljs-string\">r-xp<\/span> <span class=\"hljs-number\">00000000<\/span>  <span class=\"hljs-number\">00<\/span><span class=\"hljs-string\">:00<\/span>        <span class=\"hljs-number\">0<\/span>      <span class=\"hljs-number\">4<\/span>    <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-number\">0<\/span>   <span class=\"hljs-string\">[vsyscall]<\/span>\r\n                                               <span class=\"hljs-string\">======<\/span> <span class=\"hljs-string\">====<\/span> <span class=\"hljs-string\">===<\/span> \r\n                                               <span class=\"hljs-number\">153800<\/span> <span class=\"hljs-number\">2224<\/span> <span class=\"hljs-number\">943<\/span> <\/code><\/pre>\n<p>\u5173\u6ce8\u4e0a\u9762\u52a0\u7c97\u7684\u90e8\u5206\uff0c\u7ea2\u8272\u533a\u57df\u52a0\u8d77\u6765\u662f 65536K\uff0c\u5176\u4e2d\u6709 404K \u662f rw-p \uff08\u53ef\u8bfb\u53ef\u5199\uff09\u6743\u9650\uff0c65132K \u662f \u2014-p \uff08\u4e0d\u53ef\u8bfb\u5199\uff09\u6743\u9650\uff1b\u9ec4\u8272\u533a\u57df\u7c7b\u4f3c\u3002\u4e24\u4e2a\u7ebf\u7a0b\u5206\u914d\u7684\u65f6 ptmalloc \u5206\u522b\u7ed9\u4e86 \u52a8\u6001\u5206\u533a\uff0c\u5e76\u4e14\u6bcf\u6b21\u7533\u8bf7 64M \u5185\u5b58\uff0c\u518d\u4ece\u8fd9 64M \u4e2d\u5207\u5206\u51fa\u4e00\u90e8\u5206\u7ed9\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<p>\u8fd9\u91cc\u8fd8\u6709\u4e00\u4e2a\u6709\u610f\u601d\u7684\u73b0\u8c61\uff1a\u6211\u4eec\u7528<code>strace -f -e \"brk, mmap, munmap\" -p {pid}<\/code>\u53bb\u8ddf\u8e2a\u7a0b\u5e8f\u67e5\u770b\u4e0b malloc \u4e2d\u7684\u7cfb\u7edf\u8c03\u7528\uff1a<\/p>\n<pre class=\"hljs yaml\"><code><span class=\"hljs-string\">mmap(NULL,<\/span> <span class=\"hljs-number\">8392704<\/span><span class=\"hljs-string\">,<\/span> <span class=\"hljs-string\">PROT_READ|PROT_WRITE,<\/span> <span class=\"hljs-string\">MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK,<\/span> <span class=\"hljs-number\">-1<\/span><span class=\"hljs-string\">,<\/span> <span class=\"hljs-number\">0<\/span><span class=\"hljs-string\">)<\/span> <span class=\"hljs-string\">=<\/span> <span class=\"hljs-number\">0x7f624a169000<\/span>\r\n<span class=\"hljs-attr\">strace:<\/span> <span class=\"hljs-string\">Process<\/span> <span class=\"hljs-number\">774601<\/span> <span class=\"hljs-string\">attached<\/span>\r\n<span class=\"hljs-string\">[pid<\/span> <span class=\"hljs-number\">774018<\/span><span class=\"hljs-string\">]<\/span> <span class=\"hljs-string\">mmap(NULL,<\/span> <span class=\"hljs-number\">8392704<\/span><span class=\"hljs-string\">,<\/span> <span class=\"hljs-string\">PROT_READ|PROT_WRITE,<\/span> <span class=\"hljs-string\">MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK,<\/span> <span class=\"hljs-number\">-1<\/span><span class=\"hljs-string\">,<\/span> <span class=\"hljs-number\">0<\/span><span class=\"hljs-string\">)<\/span> <span class=\"hljs-string\">=<\/span> <span class=\"hljs-number\">0x7f6249968000<\/span>\r\n<span class=\"hljs-string\">[pid<\/span> <span class=\"hljs-number\">774601<\/span><span class=\"hljs-string\">]<\/span> <span class=\"hljs-string\">mmap(NULL,<\/span> <span class=\"hljs-number\">134217728<\/span><span class=\"hljs-string\">,<\/span> <span class=\"hljs-string\">PROT_NONE,<\/span> <span class=\"hljs-string\">MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE,<\/span> <span class=\"hljs-number\">-1<\/span><span class=\"hljs-string\">,<\/span> <span class=\"hljs-number\">0<\/span><span class=\"hljs-string\">)<\/span> <span class=\"hljs-string\">=<\/span> <span class=\"hljs-number\">0x7f6241968000<\/span>\r\n<span class=\"hljs-string\">[pid<\/span> <span class=\"hljs-number\">774601<\/span><span class=\"hljs-string\">]<\/span> <span class=\"hljs-string\">munmap(0x7f6241968000,<\/span> <span class=\"hljs-attr\">40468480strace:<\/span> <span class=\"hljs-string\">Process<\/span> <span class=\"hljs-number\">774602<\/span> <span class=\"hljs-string\">attached<\/span>\r\n<span class=\"hljs-string\">)<\/span> <span class=\"hljs-string\">=<\/span> <span class=\"hljs-number\">0<\/span>\r\n<span class=\"hljs-string\">[pid<\/span> <span class=\"hljs-number\">774601<\/span><span class=\"hljs-string\">]<\/span> <span class=\"hljs-string\">munmap(0x7f6248000000,<\/span> <span class=\"hljs-number\">26640384<\/span><span class=\"hljs-string\">)<\/span> <span class=\"hljs-string\">=<\/span> <span class=\"hljs-number\">0<\/span>\r\n<span class=\"hljs-string\">[pid<\/span> <span class=\"hljs-number\">774602<\/span><span class=\"hljs-string\">]<\/span> <span class=\"hljs-string\">mmap(NULL,<\/span> <span class=\"hljs-number\">134217728<\/span><span class=\"hljs-string\">,<\/span> <span class=\"hljs-string\">PROT_NONE,<\/span> <span class=\"hljs-string\">MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE,<\/span> <span class=\"hljs-number\">-1<\/span><span class=\"hljs-string\">,<\/span> <span class=\"hljs-number\">0<\/span><span class=\"hljs-string\">)<\/span> <span class=\"hljs-string\">=<\/span> <span class=\"hljs-number\">0x7f623c000000<\/span>\r\n<span class=\"hljs-string\">[pid<\/span> <span class=\"hljs-number\">774602<\/span><span class=\"hljs-string\">]<\/span> <span class=\"hljs-string\">munmap(0x7f6240000000,<\/span> <span class=\"hljs-number\">67108864<\/span><span class=\"hljs-string\">)<\/span> <span class=\"hljs-string\">=<\/span> <span class=\"hljs-number\">0<\/span><\/code><\/pre>\n<p>\u8fd9\u91cc\u4e3b\u7ebf\u7a0b [774018] \u8981\u6c42\u5206\u914d\u4e86 8M+4k \u7a7a\u95f4\uff1b\u7ebf\u7a0b1 [774601] \u5148 mmap \u4e86 128M \u7a7a\u95f4\uff0c\u518d\u5206\u5f52\u8fd8\u4e86 0x7f6241968000 \u4e3a\u8d77\u59cb\u5730\u5740\u7684 40468480 \u5b57\u8282 \u548c 0x7f6248000000\u4e3a\u8d77\u59cb\u5730\u5740\u7684 26640384 \u5b57\u8282\uff0c\u90a3\u5269\u4f59\u7684\u90e8\u5206\u662f 0x7F6244000000 ~ 0x7F6248000000\u3002\u5148\u7533\u8bf7\u518d\u5f52\u8fd8\u662f\u4e3a\u4e86\u8ba9\u5206\u914d\u7684\u8fd9\u90e8\u5206\u5185\u5b58\u7684\u8d77\u6b62\u5730\u5740\u662f\u5b57\u8282\u5bf9\u9f50\u7684\u3002<\/p>\n<p><span id=\"OSC_h2_4\"><\/span><\/p>\n<h2><strong>Curve \u7684\u5185\u5b58\u7ba1\u7406<\/strong><\/h2>\n<p>Curve \u4e2d\u9009\u62e9\u4e86\u4e24\u79cd\u5206\u914d\u5668\uff1a<code>ptmalloc<\/code>\u548c<code>jemalloc<\/code>\u3002\u5176\u4e2d MDS \u4f7f\u7528\u9ed8\u8ba4\u7684 ptmalloc\uff0cChunkserver \u548c Client \u7aef\u4f7f\u7528 jemalloc\u3002<\/p>\n<p>\u672c\u6587\u5f00\u5934\u63d0\u5230\u7684\u4e24\u4e2a\u95ee\u9898\u5728\u8fd9\u91cc\u8fdb\u884c\u8bf4\u660e\u3002\u9996\u5148\u662fMDS\u5185\u5b58\u7f13\u6162\u589e\u957f\uff0c\u73b0\u8c61\u662f\u6bcf\u5929\u589e\u957f 3G\u3002\u8fd9\u4e2a\u95ee\u9898\u5206\u6790\u7684\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li><strong>\u9996\u5148\u662f\u4f7f\u7528<code>pmap<\/code>\u67e5\u770b\u5185\u5b58\u5206\u5e03\u3002<\/strong>\u6211\u4eec\u7528 pmap \u67e5\u770b\u5185\u5b58\u7f13\u6162\u589e\u957f\u7684 curve-mds \u5185\u5b58\u5206\u914d\u60c5\u51b5\uff0c\u53d1\u73b0\u5728 Memory Mapping Region \u5b58\u5728\u7740\u5927\u91cf\u5206\u914d\u7684 64M \u5185\u5b58\uff0c\u4e14\u89c2\u5bdf\u4e00\u6bb5\u65f6\u95f4\u540e\u90fd\u4e0d\u91ca\u653e\u8fd8\u5728\u4e00\u76f4\u5206\u914d\u3002\u4ece\u8fd9\u91cc\u6000\u7591\u5b58\u5728\u5185\u5b58\u6cc4\u9732\u3002<\/li>\n<li><strong>\u7136\u540e\u67e5\u770b\u5e94\u7528\u4e0a\u8bf7\u6c42\u7684\u538b\u529b\u60c5\u51b5\u3002<\/strong>\u67e5\u770bMDS \u4e0a\u76f8\u5173\u7684\u4e1a\u52a1 metric\uff0c\u53d1\u73b0 MDS \u4e0a\u7684\u538b\u529b\u90fd\u5f88\u5c0f\uff0c\u4e00\u4e9b\u63a7\u5236\u9762 rpc \u7684 iops \u5728\u51e0\u767e\u5de6\u53f3\uff0c\u4e0d\u5e94\u8be5\u662f\u4e1a\u52a1\u538b\u529b\u8f83\u5927\u5bfc\u81f4\u7684\u3002<\/li>\n<li><strong>\u63a5\u4e0b\u6765\u67e5\u770b curve-mds \u90e8\u5206 64M \u5185\u5b58\u4e0a\u7684\u6570\u636e\u3002<\/strong>\u4f7f\u7528<code>gdb -p {pid} attach<\/code>\u8ddf\u8e2a\u7ebf\u7a0b\uff0c<code>dump meemory mem.bin {addr1} {addr2}<\/code>\u83b7\u53d6\u6307\u5b9a\u5730\u5740\u6bb5\u7684\u5185\u5b58\uff0c\u7136\u540e\u67e5\u770b\u8fd9\u90e8\u5206\u5185\u5b58\u5185\u5bb9\uff0c\u57fa\u672c\u786e\u5b9a\u51e0\u4e2a\u6000\u7591\u70b9\u3002<\/li>\n<li><strong>\u6839\u636e\u8fd9\u51e0\u4e2a\u70b9\u53bb\u6392\u67e5\u4ee3\u7801\uff0c\u770b\u662f\u5426\u6709\u5185\u5b58\u6cc4\u9732\u3002<\/strong><\/li>\n<\/ol>\n<p>Chunkserver \u7aef\u4e0d\u662f\u5f00\u59cb\u5c31\u4f7f\u7528 jemalloc \u7684\uff0c\u6700\u521d\u4e5f\u662f\u7528\u7684\u9ed8\u8ba4\u7684 ptmalloc\u3002\u6362\u6210 jemalloc \u662f\u672c\u6587\u5f00\u59cb\u63d0\u5230\u7684 Chunkserver \u5728\u6d4b\u8bd5\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u5185\u5b58\u65e0\u6cd5\u91ca\u653e\u7684\u95ee\u9898\uff0c\u8fd9\u4e2a\u95ee\u9898\u7684\u73b0\u8c61\u662f\uff1achunkserver\u7684\u5185\u5b58\u5728 2 \u4e2a \u5c0f\u65f6\u5185\u589e\u957f\u5f88\u5feb\uff0c\u4e00\u5171\u589e\u957f\u4e86 50G \u5de6\u53f3\uff0c\u4f46\u540e\u9762\u5e76\u672a\u91ca\u653e\u3002\u8fd9\u4e2a\u95ee\u9898\u5206\u6790\u7684\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li><strong>\u9996\u5148\u5206\u6790\u5185\u5b58\u4e2d\u6570\u636e\u6765\u6e90\u3002<\/strong>\u8fd9\u4e00\u70b9\u8ddf MDS \u4e0d\u540c\uff0cMDS \u4e0a\u90fd\u662f\u63a7\u5236\u9762\u7684\u8bf7\u6c42\u4ee5\u53ca\u4e00\u4e9b\u5143\u6570\u636e\u7684\u7f13\u5b58\u3002\u800cChunkserver \u4e0a\u7684\u5185\u5b58\u589e\u957f\u4e00\u822c\u6765\u81ea\u4e24\u4e2a\u5730\u65b9\uff1a\u4e00\u662f\u7528\u6237\u53d1\u9001\u7684\u8bf7\u6c42\uff0c\u4e8c\u662f copyset \u7684 leader \u548c follower \u4e4b\u95f4\u540c\u6b65\u6570\u636e\u3002\u8fd9\u4e24\u4e2a\u90fd\u4f1a\u6d89\u53ca\u5230 brpc \u6a21\u5757\u3002\n<p>brpc \u7684\u5185\u5b58\u7ba1\u7406\u6709\u4e24\u4e2a\u6a21\u5757 IOBuf \u548c ResourcePool\u3002IOBuf \u4e2d\u7684\u7a7a\u95f4\u4e00\u822c\u7528\u4e8e\u5b58\u653e\u7528\u6237\u6570\u636e\uff0cResourcePool \u7ba1\u7406 socket\u3001bthread_id \u7b49\u5bf9\u8c61\uff0c\u7ba1\u7406\u7684\u5185\u5b58\u5bf9\u8c61\u5355\u4f4d\u662f 64K \u3002<\/li>\n<li><strong>\u67e5\u770b\u5bf9\u5e94\u6a21\u5757\u7684\u4e00\u4e9b\u8d8b\u52bf\u6307\u6807\u3002<\/strong>\u89c2\u5bdf\u8fd9\u4e24\u4e2a\u6a21\u5757\u7684metric\uff0c\u53d1\u73b0 IOBuf \u548c ResourcePool \u8fd9\u6bb5\u65f6\u95f4\u5185\u5360\u7528\u7684\u5185\u5b58\u90fd\u6709\u76f8\u540c\u7684\u589e\u957f\u8d8b\u52bf\u3002\n<p>IOBuf \u540e\u9762\u5c06\u5360\u7528\u7684\u5185\u5b58\u5f52\u8fd8\u7ed9 ptmalloc\uff0c ResourcePool \u4e2d\u7ba1\u7406\u7684\u5185\u5b58\u4e0d\u4f1a\u5f52\u8fd8\u7ed9 ptmalloc \u800c\u662f\u81ea\u5df1\u7ba1\u7406\u3002<\/p>\n<p>\u4ece\u8fd9\u4e2a\u73b0\u8c61\u6211\u4eec\u6000\u7591 IOBuf \u5f52\u8fd8\u7ed9 ptmalloc \u7684\u5185\u5b58 ptmalloc \u65e0\u6cd5\u91ca\u653e\u3002<\/li>\n<li><strong>\u5206\u6790\u9a8c\u8bc1<\/strong>\u3002\u7ed3\u5408\u7b2c\u4e8c\u8282\u7684\u5185\u5b58\u5206\u914d\u7b56\u7565\uff0c\u5982\u679c\u5806\u9876\u7684\u7a7a\u95f4\u4e00\u76f4\u88ab\u5360\u7528\uff0c\u90a3\u5806\u9876\u5411\u4e0b\u7684\u7a7a\u95f4\u4e5f\u662f\u65e0\u6cd5\u88ab\u91ca\u653e\u7684\u3002\u4ecd\u7136\u53ef\u4ee5\u4f7f\u7528 pmap \u67e5\u770b\u5f53\u524d\u5806\u4e0a\u5185\u5b58\u7684\u5927\u5c0f\u4ee5\u53ca\u5185\u5b58\u7684\u6743\u9650\uff08\u662f\u5426\u6709\u5f88\u591a \u2014-p \u6743\u9650\u7684\u5185\u5b58\uff09\u6765\u786e\u5b9a\u731c\u60f3\u3002\u56e0\u6b64\u540e\u9762 Chunkserver \u4f7f\u7528\u4e86 jemalloc\u3002<strong>\u8fd9\u91cc\u53ef\u4ee5\u770b\u5230\u5728\u591a\u7ebf\u7a0b\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u4e00\u90e8\u5206\u5185\u5b58\u88ab\u5e94\u7528\u957f\u671f\u6301\u6709\uff0c\u4f7f\u7528 ptmalloc \u4e5f\u8bb8\u5c31\u4f1a\u9047\u5230\u5185\u5b58\u65e0\u6cd5\u91ca\u653e\u7684\u95ee\u9898\u3002<\/strong><\/li>\n<\/ol>\n<p>\u8fd9\u91cc\u5bf9 MDS \u548c Chunkserver \u51fa\u73b0\u7684\u4e24\u4e2a\u95ee\u9898\u8fdb\u884c\u4e86\u603b\u7ed3\uff0c\u4e00\u65b9\u9762\u60f3\u8bf4\u660e Curve \u9009\u62e9\u4e0d\u540c\u5185\u5b58\u5206\u914d\u5668\u7684\u539f\u56e0\u3002\u5bf9\u4e8e\u4e00\u4e2a\u4ece 0 \u5230 1 \u7684\u9879\u76ee\uff0c\u4ee3\u7801\u5f00\u53d1\u4e4b\u521d\u9009\u62e9\u5185\u5b58\u5206\u914d\u5668\u4e0d\u662f\u4e00\u4e2a\u7279\u522b\u91cd\u8981\u7684\u4e8b\u60c5\uff0c\u5982\u679c\u6709\u6bd4\u8f83\u591a\u7684\u5f00\u53d1\u548c\u89e3\u51b3\u7c7b\u4f3c\u5185\u5b58\u95ee\u9898\u7684\u7ecf\u9a8c\uff0c\u5f00\u59cb\u505a\u51fa\u8bc4\u4f30\u662f\u597d\u7684\uff1b\u4f46\u5982\u679c\u6ca1\u6709\uff0c\u53ef\u4ee5\u5148\u9009\u62e9\u4e00\u4e2a\uff0c\u51fa\u73b0\u95ee\u9898\u6216\u8005\u5230\u9700\u8981\u4f18\u5316\u5185\u5b58\u6027\u80fd\u7684\u65f6\u5019\u518d\u53bb\u5206\u6790\u3002\u53e6\u5916\u4e00\u65b9\u9762\u5e0c\u671b\u53ef\u4ee5\u7ed9\u9047\u5230\u7c7b\u4f3c\u5185\u5b58\u95ee\u9898\u7684\u5c0f\u4f19\u4f34\u4e00\u4e9b\u5b9a\u4f4d\u7684\u601d\u8def\u3002<\/p>\n<p><strong>\u4f5c\u8005<\/strong>\uff1a\u674e\u5c0f\u7fe0\uff0c\u7f51\u6613\u6570\u5e06\u5b58\u50a8\u56e2\u961fCurve\u9879\u76ee\u653b\u57ce\u72ee\u3002<\/p>\n<p>\u5982\u6709\u7406\u89e3\u548c\u63cf\u8ff0\u4e0a\u6709\u758f\u6f0f\u6216\u8005\u9519\u8bef\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u5171\u540c\u4ea4\u6d41\uff1b\u53c2\u8003\u5df2\u7ecf\u5728\u53c2\u8003\u6587\u732e\u4e2d\u6ce8\u660e\uff0c\u4f46\u4ecd\u6709\u53ef\u80fd\u6709\u758f\u6f0f\u7684\u5730\u65b9\uff0c\u6709\u4efb\u4f55\u4fb5\u6743\u6216\u8005\u4e0d\u660e\u786e\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u6307\u51fa\uff0c\u5fc5\u5b9a\u53ca\u65f6\u66f4\u6b63\u6216\u8005\u5220\u9664\uff1b\u6587\u7ae0\u4f9b\u4e8e\u5b66\u4e60\u4ea4\u6d41\uff0c\u8f6c\u8f7d\u6ce8\u660e\u51fa\u5904<\/p>\n<p><strong>\u53c2\u8003\u6587\u732e<\/strong><\/p>\n<p>[1]<a href=\"https:\/\/www.cyningsun.com\/07-07-2018\/memory-allocator-contrasts.html\">ptmalloc,tcmalloc,jemalloc\u5bf9\u6bd4\u5206\u6790<\/a><\/p>\n<p>[2]<a href=\"https:\/\/zhuanlan.zhihu.com\/p\/26137521?utm_source=wechat_session&amp;utm_medium=social&amp;utm_oi=552541092948684800&amp;utm_content=sec\">\u5341\u95eelinux\u865a\u62df\u5185\u5b58\u7ba1\u7406(glibc)<\/a><\/p>\n<p>[3]<a href=\"https:\/\/www.pengrl.com\/p\/29054\/\">Go\u8bed\u8a00\u4f7f\u7528cgo\u65f6\u7684\u5185\u5b58\u7ba1\u7406\u7b14\u8bb0<\/a><\/p>\n<p>[3] \u6df1\u5165\u7406\u89e3\u8ba1\u7b97\u673a\u7cfb\u7edf [\u7f8e] \u5170\u5fb7\u5c14 E.\u5e03\u83b1\u6069\u7279\uff08Randal E.\u00b7Bryant\uff09 \u8457\uff0c\u9f9a\u5955\u5229\uff0c\u8d3a\u83b2 \u8bd1<\/p>\n<p><strong>\u76f8\u5173\u94fe\u63a5<\/strong><\/p>\n<p><a href=\"https:\/\/www.oschina.net\/p\/curve\" target=\"_blank\" rel=\"noopener\">Curv\u9879\u76ee\u4ecb\u7ecd<\/a><\/p>\n<p><a href=\"https:\/\/my.oschina.net\/u\/4565392\/blog\/4710038\" target=\"_blank\" rel=\"noopener\">\u7f51\u6613\u6570\u5e06\u5b58\u50a8\u8d1f\u8d23\u4eba\u4eb2\u8ff0\uff1a\u6211\u773c\u4e2d\u7684 Curve \u4e0e Ceph<\/a><\/p>\n<p><a href=\"https:\/\/live.bilibili.com\/22585337\" target=\"_blank\" rel=\"noopener\">Curve\u5f00\u6e90\u6280\u672f\u76f4\u64ad\uff08\u6bcf\u5468\u4e9419:00\uff09<\/a><\/p>\n<p><a href=\"https:\/\/github.com\/opencurve\/curve\/wiki\/Roadmap\" target=\"_blank\" rel=\"noopener\">Curve\u7684roadmap<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"copyright-box\">\n<div class=\"copyright-box__content\">\n<p>\u00a9 \u8457\u4f5c\u6743\u5f52\u4f5c\u8005\u6240\u6709<\/p>\n<\/div>\n<div class=\"copyright-box__extra\"><span class=\"ban clickable\" data-id=\"4740872\" data-obj-type=\"3\" data-url=\"https:\/\/my.oschina.net\/u\/4565392\/blog\/4740872\"><i class=\"flag icon\"><\/i>\u4e3e\u62a5<\/span><\/div>\n<\/div>\n<div class=\"action-box\">\n<div class=\"action-item\">\n<div class=\"action-item__button donate\" data-id=\"4740872\" data-obj-type=\"16344358\" data-subject=\"\u5206\u5e03\u5f0f\u5b58\u50a8\u5f00\u53d1\uff1aCurve\u4e2d\u7684\u5185\u5b58\u7ba1\u7406\" data-donater=\"\" data-author=\"4565392\" data-return-url=\"https:\/\/my.oschina.net\/u\/4565392\/blog\/4740872\" data-notify-url=\"https:\/\/my.oschina.net\/action\/donate\/paySuccess\"><\/div>\n<div class=\"action-item__text\">\u6253\u8d4f<\/div>\n<\/div>\n<div class=\"action-item\">\n<div class=\"action-item__button like-btn toggle-article-like \" data-id=\"4740872\"><\/div>\n<div class=\"action-item__text\"><span data-article-like-count=\"\">0<\/span>\u00a0\u8d5e<\/div>\n<\/div>\n<div class=\"action-item\">\n<div class=\"action-item__button collect-btn \" data-id=\"4740872\" data-user-id=\"4565392\" data-obj-type=\"3\" data-max=\"99\" data-tag-required=\"\" data-current-user-id=\"\" data-recommend-tags=\"\" data-uncollected-class=\"oicon oicon-star\" data-collected-class=\"oicon oicon-star\"><\/div>\n<div class=\"action-item__text\"><span data-collect-count=\"\" data-id=\"4740872\" data-obj-type=\"3\">0<\/span>\u00a0\u6536\u85cf<\/div>\n<\/div>\n<div class=\"action-item\">\n<div class=\"osc-share ui floating dropdown\" tabindex=\"0\" data-tag=\"share-blog\">\n<div class=\"action-item__button\"><\/div>\n<\/div>\n<div class=\"action-item__text\">\u5206\u4eab<\/div>\n<\/div>\n<\/div>\n<div class=\"recommend-box\">\n<div class=\"recommend-box__header\">\n<h3 class=\"recommend-box__title\">\u4f5c\u8005\u7684\u5176\u5b83\u70ed\u95e8\u6587\u7ae0<\/h3>\n<\/div>\n<div class=\"recommend-box__content\">\n<div class=\"item-list\">\n<div class=\"item\"><a title=\"Raft \u7b97\u6cd5\u5728\u5206\u5e03\u5f0f\u5b58\u50a8\u7cfb\u7edf Curve \u4e2d\u7684\u5b9e\u8df5\" href=\"https:\/\/my.oschina.net\/u\/4565392\/blog\/4771569\" target=\"_blank\" rel=\"noopener\">Raft \u7b97\u6cd5\u5728\u5206\u5e03\u5f0f\u5b58\u50a8\u7cfb\u7edf Curve \u4e2d\u7684\u5b9e\u8df5<\/a><\/div>\n<div class=\"item\"><a title=\"\u7f51\u6613\u6570\u5e06\u5b58\u50a8\u8d1f\u8d23\u4eba\u4eb2\u8ff0\uff1a\u6211\u773c\u4e2d\u7684 Curve \u4e0e Ceph\" href=\"https:\/\/my.oschina.net\/u\/4565392\/blog\/4710038\" target=\"_blank\" rel=\"noopener\">\u7f51\u6613\u6570\u5e06\u5b58\u50a8\u8d1f\u8d23\u4eba\u4eb2\u8ff0\uff1a\u6211\u773c\u4e2d\u7684 Curve \u4e0e Ceph<\/a><\/div>\n<div class=\"item\"><a title=\"\u5f00\u6e90\u5206\u5e03\u5f0f\u5b58\u50a8 Curve ChunkServer CPU \u4f18\u5316\u5b9e\u8df5\" href=\"https:\/\/my.oschina.net\/u\/4565392\/blog\/4807377\" target=\"_blank\" rel=\"noopener\">\u5f00\u6e90\u5206\u5e03\u5f0f\u5b58\u50a8 Curve ChunkServer CPU \u4f18\u5316\u5b9e\u8df5<\/a><\/div>\n<div class=\"item\"><a title=\"Curve \u6280\u672f\u89e3\u6790\u4e4b MDS \u5143\u6570\u636e\u7ba1\u7406\" href=\"https:\/\/my.oschina.net\/u\/4565392\/blog\/4749815\" target=\"_blank\" rel=\"noopener\">Curve \u6280\u672f\u89e3\u6790\u4e4b MDS 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