2009/5/26 ondras <[email protected]>: > > Hi, > > I am a newbie to V8 profiler - I was not able to get it correctly > running. Here is what I do and what I see: > > ond...@kapitan:~/svn/v8$ scons library=shared sample=shell && ./shell > --prof -e "1+1" && tools/linux-tick-processor.py v8.log > scons: Reading SConscript files ... > scons: done reading SConscript files. > scons: Building targets ... > scons: `sample' is up to date. > scons: done building targets. > Statistical profiling result from v8.log, (12 ticks, 12 unaccounted, 0 > excluded). > > [Unknown]: > ticks total nonlib name > 12 100.0% > > [Shared libraries]: > ticks total nonlib name > > [JavaScript]: > ticks total nonlib name > > [C++]: > ticks total nonlib name > > [GC]: > ticks total nonlib name > 0 0.0% > > [Call profile]: > total call path > 12 100.0% <no call path information> > > > However, the v8.log file looks okay - it has 554 lines of data. > > What am I doing wrong?
Could it be that the program is running for too short a time? Perhaps if you try a longer-running js script you will get some ticks that are hitting something interesting. Check that the paths to the executables and libraries that are listed in the beginning of the v8.log file match something that the tick-processor script can read and interpret with the nm command. -- Erik Corry, Software Engineer Google Denmark ApS. CVR nr. 28 86 69 84 c/o Philip & Partners, 7 Vognmagergade, P.O. Box 2227, DK-1018 Copenhagen K, Denmark. --~--~---------~--~----~------------~-------~--~----~ v8-users mailing list [email protected] http://groups.google.com/group/v8-users -~----------~----~----~----~------~----~------~--~---
