{"id":827,"date":"2021-12-18T19:13:52","date_gmt":"2021-12-18T11:13:52","guid":{"rendered":"https:\/\/blog.cauchyschwarz.com\/?p=827"},"modified":"2021-12-18T19:13:56","modified_gmt":"2021-12-18T11:13:56","slug":"c%e8%af%ad%e8%a8%80%e6%80%a7%e8%83%bd%e8%b0%83%e4%bc%98","status":"publish","type":"post","link":"https:\/\/blog.cauchyschwarz.com\/?p=827","title":{"rendered":"C\u8bed\u8a00\u6027\u80fd\u8c03\u4f18"},"content":{"rendered":"\n<p>\u8bb0\u5f55\u4e00\u4e0b\u6700\u8fd1\u4f7f\u7528\u8fc7\u7684\u7a0b\u5e8f\u6027\u80fd\u5206\u6790\u5de5\u5177\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u514d\u5f97\u4ee5\u540e\u9700\u8981\u7684\u65f6\u5019\u53c8\u5f97Google\u3001\u767e\u5ea6\u3002<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 ez-toc-wrap-right counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69e0ad8762d7d\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69e0ad8762d7d\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=827\/#%E5%8F%82%E8%80%83%E5%8D%9A%E5%AE%A2\" >\u53c2\u8003\u535a\u5ba2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=827\/#gprof\" >gprof<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=827\/#%E7%AE%80%E5%8D%95%E6%95%99%E7%A8%8B\" >\u7b80\u5355\u6559\u7a0b<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=827\/#1_%E7%BC%96%E8%AF%91%E7%A8%8B%E5%BA%8F%E6%97%B6%E9%9C%80%E8%A6%81%E5%8A%A0%E4%B8%8A%E9%A2%9D%E5%A4%96%E7%9A%84-pg%E9%80%89%E9%A1%B9%EF%BC%9B\" >1. \u7f16\u8bd1\u7a0b\u5e8f\u65f6\u9700\u8981\u52a0\u4e0a\u989d\u5916\u7684-pg\u9009\u9879\uff1b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=827\/#2_%E6%89%A7%E8%A1%8C%E7%A8%8B%E5%BA%8F\" >2. \u6267\u884c\u7a0b\u5e8f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=827\/#3_%E6%9F%A5%E7%9C%8B%E7%BB%9F%E8%AE%A1%E7%BB%93%E6%9E%9C\" >3. \u67e5\u770b\u7edf\u8ba1\u7ed3\u679c<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=827\/#valgrindcallgrind\" >valgrind\/callgrind<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=827\/#%E7%AE%80%E5%8D%95%E6%95%99%E7%A8%8B-2\" >\u7b80\u5355\u6559\u7a0b<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=827\/#gperftools\" >gperftools<\/a><\/li><\/ul><\/nav><\/div>\n<h1 class=\"wp-block-heading\" id=\"%E5%8F%82%E8%80%83%E5%8D%9A%E5%AE%A2\"><span class=\"ez-toc-section\" id=\"%E5%8F%82%E8%80%83%E5%8D%9A%E5%AE%A2\"><\/span><a href=\"http:\/\/gernotklingler.com\/blog\/gprof-valgrind-gperftools-evaluation-tools-application-level-cpu-profiling-linux\/\">\u53c2\u8003\u535a\u5ba2<\/a><span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"gprof\"><span class=\"ez-toc-section\" id=\"gprof\"><\/span><a href=\"https:\/\/sourceware.org\/binutils\/docs\/gprof\/\">gprof<\/a><span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<ul class=\"wp-block-list\"><li>\u4f18\u70b9&nbsp;<strong>GNU Bintuils<\/strong>\u7684\u4e00\u90e8\u5206\u3002\u90fd\u4e0d\u9700\u8981\u4ec0\u4e48\u591a\u4f59\u7684\u5b89\u88c5\u6b65\u9aa4\u3002\u8f7b\u91cf\u7ea7\u3002\u901f\u5ea6\u5feb\u3002<\/li><li>\u7f3a\u70b9<ol><li>~~\u636e\u8bf4\u4f7f\u7528\u7684\u6280\u672f\u5f88\u8fc7\u65f6\u3002~~\u53cd\u6b63\u4ece\u6211\u7684\u5b9e\u9645\u4f7f\u7528\u7ecf\u9a8c\u6765\u770b\u95ee\u9898\u5728\u4e8e\u8ba1\u65f6\u7684\u7c92\u5ea6\u592a\u5927\u3002<\/li><li>\u9700\u8981\u6709\u6e90\u7801\u91cd\u65b0\u7f16\u8bd1\u7a0b\u5e8f\uff0c\u6700\u7ec8\u8fd0\u884c\u7684\u7a0b\u5e8f\u662f\u63d2\u5165\u4e86\u6027\u80fd\u7edf\u8ba1\u4ee3\u7801\u7684\u7a0b\u5e8f\u3002<\/li><li>\u4e0d\u652f\u6301\u591a\u7ebf\u7a0b\u3002<\/li><li>\u4e0d\u80fd\u5206\u6790\u5171\u4eab\u5e93(\u56e0\u4e3a\u4e0d\u53ef\u80fd\u91cd\u65b0\u52a0\u4e0a<code>-pg<\/code>\u9009\u9879\u6765\u91cd\u65b0\u7f16\u8bd1\u5171\u4eab\u5e93)\u3002<\/li><\/ol><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"%E7%AE%80%E5%8D%95%E6%95%99%E7%A8%8B\"><span class=\"ez-toc-section\" id=\"%E7%AE%80%E5%8D%95%E6%95%99%E7%A8%8B\"><\/span>\u7b80\u5355\u6559\u7a0b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1-%E7%BC%96%E8%AF%91%E7%A8%8B%E5%BA%8F%E6%97%B6%E9%9C%80%E8%A6%81%E5%8A%A0%E4%B8%8A%E9%A2%9D%E5%A4%96%E7%9A%84-pg%E9%80%89%E9%A1%B9\"><span class=\"ez-toc-section\" id=\"1_%E7%BC%96%E8%AF%91%E7%A8%8B%E5%BA%8F%E6%97%B6%E9%9C%80%E8%A6%81%E5%8A%A0%E4%B8%8A%E9%A2%9D%E5%A4%96%E7%9A%84-pg%E9%80%89%E9%A1%B9%EF%BC%9B\"><\/span>1. \u7f16\u8bd1\u7a0b\u5e8f\u65f6\u9700\u8981\u52a0\u4e0a\u989d\u5916\u7684<code>-pg<\/code>\u9009\u9879\uff1b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u4f7f\u7528gcc\u7f16\u8bd1\u7684\u65f6\u5019\u9700\u8981\u52a0\u4e0a\u8fd9\u4e2a<code>-pg<\/code>\u9009\u9879\uff0c\u7f16\u8bd1\u5668\u624d\u4f1a\u5728\u7a0b\u5e8f\u91cc\u52a0\u5165\u6027\u80fd\u7edf\u8ba1\u7684\u4ee3\u7801\u3002\u5982\u679c\u7f16\u8bd1\u8fc7\u7a0b\u662f\u5206\u6b65\u8fdb\u884c\u7684\uff0c\u6bd4\u5982\u5148\u5206\u522b\u7f16\u8bd1\u6bcf\u4e2a\u6e90\u6587\u4ef6\u4e3a\u53ef\u91cd\u5b9a\u4f4d\u76ee\u6807\u6587\u4ef6\uff0c\u7136\u540e\u518d\u94fe\u63a5\u6210\u4e3a\u53ef\u6267\u884c\u76ee\u6807\u6587\u4ef6\u7684\u8bdd\uff0c\u90a3\u4e48\u5728\u94fe\u63a5\u7684\u547d\u4ee4\u91cc\u4e5f\u9700\u8981\u52a0\u5165<code>-pg<\/code>\u9009\u9879\uff0c\u800c\u4e0d\u4ec5\u53ea\u662f\u5728\u5355\u72ec\u7f16\u8bd1\u6bcf\u4e2a\u6e90\u6587\u4ef6\u65f6\u52a0\u4e0a<code>-pg<\/code>\u9009\u9879\u3002\u6bd4\u5982\u5b98\u7f51\u4e3e\u7684\u4f8b\u5b50\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\">cc -g -c myprog.c utils.c -pg\ncc -o myprog myprog.o utils.o -pg\n<\/code><\/pre>\n\n\n\n<p>\u6709\u7684\u65f6\u5019\u9700\u8981\u5728\u7f16\u8bd1\u7684\u65f6\u5019\u4f7f\u7528<code>-static<\/code>\u9009\u9879\uff0c\u8ba9\u7f16\u8bd1\u5668\u63d2\u5165\u7684\u6027\u80fd\u7edf\u8ba1\u7684\u4ee3\u7801\u9759\u6001\u94fe\u63a5\u76f8\u5e94\u7684\u5e93\uff0c\u4ee5\u907f\u514d\u7f16\u8bd1\u73af\u5883\u548c\u8fd0\u884c\u73af\u5883\u4f7f\u7528\u4e0d\u540c\u7684\u5171\u4eab\u5e93\u5bfc\u81f4\u7f16\u8bd1\u597d\u7684\u7a0b\u5e8f\u4e0d\u80fd\u8fd0\u884c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-%E6%89%A7%E8%A1%8C%E7%A8%8B%E5%BA%8F\"><span class=\"ez-toc-section\" id=\"2_%E6%89%A7%E8%A1%8C%E7%A8%8B%E5%BA%8F\"><\/span>2. \u6267\u884c\u7a0b\u5e8f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u6267\u884c\u7f16\u8bd1\u597d\u7684\u5305\u542b\u4e86\u6027\u80fd\u7edf\u8ba1\u4ee3\u7801\u7684\u7a0b\u5e8f\u3002\u7a0b\u5e8f\u8fd0\u884c\u7ed3\u675f\u4e4b\u540e\u4f1a\u751f\u6210\u4e00\u4e2agmon.out\u6587\u4ef6\u3002\u7a0b\u5e8f\u5fc5\u987b\u6b63\u5e38\u7ed3\u675f(\u4ece<code>main<\/code>\u8fd4\u56de\u6216\u8005\u8c03\u7528<code>exit<\/code>)\uff0c\u624d\u4f1a\u751f\u6210\u6709\u6548\u7684gmon.out\u6587\u4ef6\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-%E6%9F%A5%E7%9C%8B%E7%BB%9F%E8%AE%A1%E7%BB%93%E6%9E%9C\"><span class=\"ez-toc-section\" id=\"3_%E6%9F%A5%E7%9C%8B%E7%BB%9F%E8%AE%A1%E7%BB%93%E6%9E%9C\"><\/span>3. \u67e5\u770b\u7edf\u8ba1\u7ed3\u679c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u4f7f\u7528<code>gprof<\/code>\u7a0b\u5e8f\u5904\u7406\u751f\u6210\u7684gmon.out\u6587\u4ef6\uff0c\u5f97\u5230\u4e00\u4e2a\u5173\u4e8e\u7a0b\u5e8f\u6027\u80fd\u7edf\u8ba1\u7684\u62a5\u544a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\">  gprof options [executable-file [profile-data-files...]] [&gt; outfile]\n<\/code><\/pre>\n\n\n\n<p>\u62a5\u544a\u91cc\u5305\u542b\u4e86\u51fd\u6570\u7684\u8c03\u7528\u5173\u7cfb\uff0c\u6bcf\u4e2a\u51fd\u6570\u88ab\u8c03\u7528\u4e86\u591a\u5c11\u6b21\uff0c\u82b1\u4e86\u591a\u5c11\u65f6\u95f4\u7b49\u4fe1\u606f\u3002\u66f4\u8be6\u7ec6\u7684\u5173\u4e8e<code>gprof<\/code>\u7684\u63a7\u5236\u9009\u9879\uff0c\u53ef\u4ee5\u67e5\u770b\u5176manual\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"valgrindcallgrind\"><span class=\"ez-toc-section\" id=\"valgrindcallgrind\"><\/span>valgrind\/callgrind<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<ul class=\"wp-block-list\"><li>\u4f18\u70b9<ul><li>\u4e0d\u9700\u8981\u91cd\u65b0\u7f16\u8bd1\u7a0b\u5e8f\u3002<\/li><li>\u652f\u6301\u591a\u7ebf\u7a0b\u3002<\/li><li>\u652f\u6301\u5171\u4eab\u5e93\u7684\u5206\u6790\u3002<\/li><\/ul><\/li><li>\u7f3a\u70b9 \u76f8\u6bd4gprof\u4f1a\u5360\u7528\u66f4\u591a\u8d44\u6e90\u3002\u7531\u4e8evalgrind\u4f7f\u7528\u7c7b\u4f3c\u865a\u62df\u673a\u7684\u5de5\u4f5c\u65b9\u5f0f\uff0c\u901f\u5ea6\u6bd4gprof\u6162\u4e86\u51e0\u5341\u500d\u3002<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"e7ae80e58d95e69599e7a88b-1\"><span class=\"ez-toc-section\" id=\"%E7%AE%80%E5%8D%95%E6%95%99%E7%A8%8B-2\"><\/span>\u7b80\u5355\u6559\u7a0b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>1.\u6b63\u5e38\u7f16\u8bd1\u7a0b\u5e8f 2.\u4f7f\u7528<em>valgrind<\/em>\u8fd0\u884c\u7a0b\u5e8f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\">valgrind --too=callgrind .\/cpuload\n<\/code><\/pre>\n\n\n\n<p>3.\u8fd0\u884c\u5b8c\u4e4b\u540e\u4f1a\u751f\u6210\u4e00\u4e2a\u53ebprofile.callgrind\u4e4b\u7c7b\u540d\u5b57\u7684\u6587\u4ef6\u3002<\/p>\n\n\n\n<p>4.\u7528\u4e00\u4e2a\u53eb<em>kcachegrind<\/em>\u7684\u7a0b\u5e8f\u6253\u5f00\u4e0a\u4e00\u6b65\u751f\u6210\u7684\u6587\u4ef6\u3002\u53ef\u81ea\u884c\u63a2\u7d22UI\u754c\u9762\uff0c\u770b\u53ef\u4ee5\u83b7\u53d6\u5230\u54ea\u4e9b\u4fe1\u606f\uff0c\u53cd\u6b63\u6bd4gprof\u7684\u66f4\u591a\u66f4\u8be6\u7ec6\uff0c\u800c\u4e14UI\u754c\u9762\u4e5f\u7279\u522b\u7f8e\u89c2\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"gperftools\"><span class=\"ez-toc-section\" id=\"gperftools\"><\/span>gperftools<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p>\u5927\u6982\u5c31\u662f\u5347\u7ea7\u7248\u7684gprof\u3002\u7531\u4e8e\u6211\u89c9\u5f97valgrind\/callgrind\u5df2\u7ecf\u80fd\u591f\u5f88\u597d\u5730\u6ee1\u8db3\u81ea\u5df1\u7684\u8981\u6c42\uff0c\u6240\u4ee5\u5c31\u6ca1\u518d\u7ec6\u770b\u3002\u6709\u5174\u8da3\u7684\u770b\u539f\u535a\u5ba2\u76f8\u5173\u4ecb\u7ecd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8bb0\u5f55\u4e00\u4e0b\u6700\u8fd1\u4f7f\u7528\u8fc7\u7684\u7a0b\u5e8f\u6027\u80fd\u5206\u6790\u5de5\u5177\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u514d\u5f97\u4ee5\u540e\u9700\u8981\u7684\u65f6\u5019\u53c8\u5f97Google\u3001\u767e\u5ea6\u3002 \u53c2\u8003\u535a\u5ba2 gprof \u4f18\u70b9&nbsp;GNU 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