tunning-Instruments and Flame Graphs

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On mac os, programs may need Instruments to tuning, and when you face too many probe messages, you‘ll need some Flame Graphs.

      Here I introduce Brendan Gregg and his blog:   

      http://www.brendangregg.com/FlameGraphs/cpuflamegraphs.html

      and he mestioned one guy make a Flame Graphs with Instruments:

      https://schani.wordpress.com/2012/11/16/flame-graphs-for-instruments

and then I try to make some flame on osx.

　　1. open xcode

　　2. input Command+i to open Instruments

　　3. choose "Time Profiler"

　　4. choose one target

　　5. start recording a call tree

　　6. export to out.csv   Instrument -> Export Track

　　7. then use Bredan‘s script to run

stackcollapse-instruments.pl  out.csv | ./flamegraph.pl >mygraph.svg

       done.

tunning-Instruments and Flame Graphs

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原文地址：http://www.cnblogs.com/zzuse/p/5691049.html