不談profile tools的重要性. erlang profile必定要看看下面這篇.
http://erlang.org/doc/efficie...
這篇blog記錄一些實操.css
在程序中, 或者直接remote_console觸發採集.html
:fprof.trace(:start) # 一段時間後, 注意不要在線上採集, fprof時對性能影響最大的profile方式, 也有最全的信息 :fprof.trace(:stop)
不傳遞參數狀況下, 默認會將fprof信息寫入fprof.trace文件.git
~/install » wget https://raw.githubusercontent.com/isacssouza/erlgrind/master/src/erlgrind ~/install » chmod a+x erlgrind ~/install » sudo mv erlgrind /usr/local/bin ~/platform/xxxxx(xxxx*) » erlgrind fprof.trace Reading trace data... .................................................. ................................................., .................................................. ................................................., .................................................. ................................................., .................................................. .............................. End of trace! Processing data... Creating output... Done!
能夠直接用包管理器安裝github
sudo apt-get install -y kcachegrind ~/platform/xxxxx(xxxxx*) » kcachegrind xxx.cgrind
效果如圖:ide
todo性能
http://erlang.org/doc/efficie...
http://blog.equanimity.nl/blo...ui