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24 Dec 2013 Ruby 2.1 is shipping with rb_profile_frames(), a new C-api for fetching ruby backtraces. The api performs no allocations and adds minimal cpu overhead making it ideal for profiling, even in production environments. I've implemented a sampling callstack profiler for 2.1 called stackprof with this API, using techniques popularized by gperftools and @brendangregg. It works remarkably well
How to install kcachegrind / qcachegrind on Mac OSX Installing kcachegrind via macports takes a long time because it has to build KDE, as well. An alternative faster way is described below. * download Qt binary and install it * download and install graphviz; I used brew install graphviz * fix default graphviz location by symlinking to a place where cachegrind will find it sudo ln -s /usr/local/bin
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è±ç¦æå¹³ (GLOCOM/JDiCE) @stoyofuku å¦ã¶è ã«ã¨ã£ã¦ã®ãè¯ãå¦ã³ãã¨æããè ãèãããè¯ãææ¥ãã¯ä¸è´ããã¨ã¯éããªããããããä¸è´ããªããã¨ã®æ¹ãå¤ãã¨èããæ¹ãèªç¶ã ã 2015-08-31 06:19:13 è±ç¦æå¹³ (GLOCOM/JDiCE) @stoyofuku ã¢ã¯ãã£ãã©ã¼ãã³ã°ãå¦ç¿è æ¬ä½ã®æ å¢ã«çç®ãããã®ã ã¨èãããªããå¦ç¿è å´ã®èª²é¡é©æ§ã¨ææ¥è ãä¸ãã課é¡å質ãå¦ç¿è æ å¢ï¼ã¢ã¯ãã£ããã¢ã¯ãã£ãã§ãªããï¼ã«å½±é¿ããã¨ããã®ã¯ããå½ãåã®è©±ãªãã ããã 2015-08-31 07:41:17
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