Zenprofile 1.0.2 Released

Ruby
1

zenprofile version 1.0.2 has been released!

zenprofiler helps answer WHAT is being called the most. spy_on helps
answer WHERE those calls are being made. ZenProfiler provides a faster
version of the standard library ruby profiler. It is otherwise pretty
much the same as before. spy_on provides a clean way to redefine a
bottleneck method so you can account for and aggregate all the calls
to it.

 % ruby -Ilib bin/zenprofile misc/factorial.rb 50000
 Total time = 3.056884
 Total time = 2.390000

           total     self              self    total
 % time  seconds  seconds    calls  ms/call  ms/call  name
  50.70     1.64     1.64    50000     0.03     0.05 Integer#downto
  19.63     2.27     0.63   200000     0.00     0.00 Fixnum#*
  14.19     2.73     0.46    50000     0.01     0.05

Factorial#factorial
9.93 3.05 0.32 1 320.36 3047.10 Range#each
5.54 3.23 0.18 2 89.40 178.79
ZenProfiler#start_hook

Once you know that Integer#downto takes 50% of the entire run, you
can use spy_on to find it. (See misc/factorial.rb for the actual code):

 % SPY=1 ruby -Ilib misc/factorial.rb 50000
 Spying on Integer#downto

 Integer.downto

 50000: total
 50000: ./misc/factorial.rb:6:in `factorial' via
        ./misc/factorial.rb:6:in `factorial'

Changes:

1.0.0 / 2009-05-20