{"id":5398,"date":"2020-07-30T00:19:00","date_gmt":"2020-07-29T16:19:00","guid":{"rendered":"http:\/\/39.97.231.10\/?p=5398"},"modified":"2020-07-30T00:19:00","modified_gmt":"2020-07-29T16:19:00","slug":"mysql%e6%80%a7%e8%83%bd%e5%88%86%e6%9e%90%e5%b7%a5%e5%85%b7perf%e5%92%8cflame-graphs-2","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=5398","title":{"rendered":"MySQL\u6027\u80fd\u5206\u6790\u5de5\u5177(perf\u548cFlame Graphs)"},"content":{"rendered":"<div>\n<div>\n<div>\n\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528perf\u548cFlame Graphs\u5de5\u5177\u5bf9MySQL\u8fdb\u884c\u6027\u80fd\u5206\u6790\uff0c\u8fd9\u4e24\u4e2a\u5de5\u5177\u80fd\u591f\u4ee5\u56fe\u5f62\u5316\u7684\u5f62\u5f0f\u5c55\u73b0MySQL\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u7684\u54ea\u4e9b\u51fd\u6570\u88ab\u8c03\u7528\u4ee5\u53ca\u8c03\u7528\u6b21\u6570\uff0c\u534f\u52a9\u5206\u6790MySQL\u6027\u80fd\u74f6\u9888\uff0c\u4e3a\u6027\u80fd\u4f18\u5316\u63d0\u4f9b\u66f4\u591a\u7684\u53c2\u8003\u4f9d\u636e\u3002<\/p>\n<h4>\u4e00\u3001\u5b89\u88c5\u8f6f\u4ef6\u5305\uff1a<\/h4>\n<ul>\n<li>sudo yum install -y perf<\/li>\n<li>git clone https:\/\/github.com\/brendangregg\/FlameGraph<\/li>\n<\/ul>\n<h4>\u4e8c\u3001\u6570\u636e\u91c7\u96c6\uff1a<\/h4>\n<p>perf \u4e3b\u8981\u7528\u6765\u91c7\u96c6\u6027\u80fd\u6570\u636e\uff0cFlame Graphs\u00a0\u4f7f\u7528perf\u91c7\u96c6\u7684\u6570\u636e\u8fdb\u884c\u56fe\u5f62\u5316\u5c55\u793a\uff0c\u6027\u80fd\u6570\u636e\u91c7\u96c6\u5e38\u7528\u7684\u4e00\u4e9b\u547d\u4ee4\u5982\u4e0b\uff1a<br \/>\n1\u3001\u91c7\u96c6mysqld\u8fdb\u7a0b10\u79d2\u7684\u6027\u80fd\u6570\u636e\u3002<br \/>\nsudo perf record -a -F 99 -g -p $(pgrep -x mysqld) &#8212; sleep 10<br \/>\n2\u3001\u6301\u7eed\u91c7\u96c6mysqld\u6027\u80fd\u6570\u636e\uff0c\u76f4\u5230ctrl+c\u53d6\u6d88\u3002<br \/>\nsudo perf record -a -F 99 -g -p $(pgrep -x mysqld)<br \/>\n3\u3001\u91c7\u96c6mysqld\u4ece\u542f\u52a8\u5230\u5173\u95ed\u6574\u4e2a\u751f\u547d\u5468\u671f\u7684\u6027\u80fd\u6570\u636e\uff0c\u5c24\u5176\u9002\u5408\u91c7\u96c6mysqld\u521a\u542f\u52a8\u65f6\u7684\u6027\u80fd\u6570\u636e\u3002<br \/>\nsudo perf record -a -F 99 -g &#8212; \/sbin\/mysqld &#8211;defaults-file=\/etc\/my.cnf<br \/>\n4\u3001\u91c7\u96c6\u6267\u884c\u67d0\u4e2aSQL\u65f6\u7684\u6027\u80fd\u6570\u636e\u3002<br \/>\nsudo perf record -a -F 99 -g -p $(pgrep -x mysqld) &#8212; mysql -e \\&#8221;SELECT * FROM db.table\\&#8221;<\/p>\n<h4>\u4e09\u3001\u6570\u636e\u52a0\u5de5\uff1a<\/h4>\n<p>\u6570\u636e\u91c7\u96c6\u5b8c\u6210\u540e\uff0c\u901a\u5e38\u4f1a\u751f\u6210\u4e00\u4e2a\u4e8c\u8fdb\u5236\u6570\u636e\u6587\u4ef6perf.data\uff0c\u901a\u8fc7\u4e0b\u9762\u7684\u547d\u4ee4\u5c06\u91c7\u96c6\u7684\u4e8c\u8fdb\u5236\u6570\u636e\u8fdb\u884c\u52a0\u5de5\uff0c\u8f6c\u6362\u6210\u6613\u4e8e\u9605\u8bfb\u7684\u6587\u672c\u6587\u4ef6\uff0c\u5982\u4e0b\uff1a<br \/>\nsudo perf script &gt; perf.script<br \/>\n\u751f\u6210\u56fe\u5f62\u5316\u7684\u6027\u80fd\u89c6\u56fe\uff1a<br \/>\n\u5c06perf.script\u6587\u4ef6\u4f5c\u4e3a\u8f93\u5165\uff0c\u901a\u8fc7Flame Graphs\u5de5\u5177\uff0c\u751f\u6210svg\u683c\u5f0f\u7684\u6027\u80fd\u56fe\u5f62\u3002<br \/>\n~\/src\/FlameGraph\/stackcollapse-perf.pl perf.script | ~\/src\/FlameGraph\/flamegraph.pl &gt; flamegraph.svg<br \/>\nflamegraph.svg\u00a0\u793a\u4f8b\u5982\u4e0b\uff1a<br \/>\n<img title=\\\"flamegraph\\\" src=\\\"https:\/\/github.com\/zxb4221\/blog\/blob\/master\/src\/pic\/flamegraph.jpg?raw=true\\\" \/><\/p>\n<h4>\u56db\u3001\u603b\u7ed3\uff1a<\/h4>\n<p>\u4f7f\u7528perf+Flame Graphs\u65b9\u5f0f\uff0c\u80fd\u591f\u4ece\u66f4\u6df1\u5c42\u7684\u51fd\u6570\u8c03\u7528\u4e0a\uff0c\u4ee5\u56fe\u5f62\u5316\u7684\u65b9\u5f0f\u770b\u5230MySQL\u662f\u5982\u4f55\u6267\u884c\u7684\uff0c\u4ee5\u53ca\u5177\u4f53\u67d0\u4e2a\u51fd\u6570\u6267\u884c\u4e86\u591a\u5c11\u6b21\uff0c\u80fd\u591f\u66f4\u597d\u7684\u770b\u5230\u9690\u85cf\u5728\u8fdb\u7a0b\u4e4b\u540e\u7684\u5177\u4f53\u64cd\u4f5c\uff0c\u76f8\u5bf9\u4e8e\u6587\u672c\uff0c\u56fe\u5f62\u5316\u7684\u5c55\u793a\uff0c\u66f4\u5bb9\u6613\u88ab\u4eba\u9605\u8bfb\uff0c\u4e5f\u66f4\u5bb9\u6613\u53d1\u73b0\u6027\u80fd\u74f6\u9888\u4ee5\u53ca\u76f8\u5e94\u7684\u4f18\u5316\u65b9\u5411\u3002\n<\/p><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528perf\u548cFlame Graphs\u5de5\u5177\u5bf9MySQL\u8fdb\u884c\u6027\u80fd\u5206\u6790\uff0c\u8fd9\u4e24\u4e2a\u5de5\u5177\u80fd\u591f\u4ee5\u56fe\u5f62\u5316\u7684\u5f62\u5f0f &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.weijing.co\/?p=5398\"> <span class=\"screen-reader-text\">MySQL\u6027\u80fd\u5206\u6790\u5de5\u5177(perf\u548cFlame Graphs)<\/span> \u67e5\u770b\u5168\u6587 &raquo;<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[90,88],"tags":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"mailpoet_newsletter_max":false,"woocommerce_thumbnail":false,"woocommerce_single":false,"woocommerce_gallery_thumbnail":false,"shop_catalog":false,"shop_single":false,"shop_thumbnail":false},"uagb_author_info":{"display_name":"weijing","author_link":"http:\/\/www.weijing.co\/?author=4"},"uagb_comment_info":0,"uagb_excerpt":"\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528perf\u548cFlame Graphs\u5de5\u5177\u5bf9MySQL\u8fdb\u884c\u6027\u80fd\u5206\u6790\uff0c\u8fd9\u4e24\u4e2a\u5de5\u5177\u80fd\u591f\u4ee5\u56fe\u5f62\u5316\u7684\u5f62\u5f0f&hellip;","_links":{"self":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/5398"}],"collection":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5398"}],"version-history":[{"count":0,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/5398\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5398"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}