gist: 121336 - perftools.rb quickstart- GitHub


  
    
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              $ sudo gem install --no-rdoc --no-ri -s http://gems.github.com tmm1-perftools.rb
Building native extensions.  This could take a while...
Successfully installed tmm1-perftools.rb-0.1.3
1 gem installed
 
$ CPUPROFILE=/tmp/prof RUBYOPT="-r`gem which perftools | tail -1`" ruby -e' 5_000_000.times{ 5+4-3*2/1 } '
PROFILE: interrupts/evictions/bytes = 395/0/108
 
$ pprof.rb --text /tmp/prof
Total: 395 samples
     296  74.9%  74.9%      395 100.0% Integer#times
      30   7.6%  82.5%       30   7.6% Fixnum#*
      25   6.3%  88.9%       25   6.3% Fixnum#+
      22   5.6%  94.4%       22   5.6% Fixnum#-
      22   5.6% 100.0%       22   5.6% Fixnum#/
 
$ pprof.rb --gif /tmp/prof > /tmp/prof.gif
$ open /tmp/prof.gif
Description:	perftools.rb quickstart
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