mikas blog

ruby-prof just hit Debian unstable:

% apt-cache show ruby-prof | sed -ne "/^Description/,/^$/p"
Description: A fast code profiler for Ruby
 ruby-prof is runs a ruby program and keeps track of the amount of time spent
 in each method. At the end of execution it displays collected information.
 Its features include:
   * Speed - it is a C extension and therefore many times faster than
     the standard Ruby profiler.
   * Flat Profiles - similar to the reports generated by the standard
     Ruby profiler.
   * Graph profiles - similar to GProf, these show how long a method
     runs, which methods call it and which methods it calls.
   * Threads - supports profiling multiple threads simultaneously.
   * Recursive calls - supports profiling recursive method calls.
   * Reports - can generate both text and cross-referenced html reports.
   * Output - can output to standard out or to a file.

Demo:

% ruby-prof /usr/share/doc/ruby1.8-examples/examples/fib.rb
6765
Thread ID: -605742108
 %self  cumulative  total     self   children  calls self/call total/call  name
 69.70     0.23      0.33     0.23     0.10    21891     0.00     0.00     Object#fib
  0.00     0.23      0.00     0.00     0.00        1     0.00     0.00     Module#method_added
  0.00     0.23      0.00     0.00     0.00        1     0.00     0.00     Kernel#print
  0.00     0.23      0.33     0.00     0.33        1     0.00     0.33     Kernel#load
  0.00     0.23      0.00     0.00     0.00        2     0.00     0.00     IO#write
  0.00     0.23      0.00     0.00     0.00        1     0.00     0.00     Fixnum#to_s
 18.18     0.29      0.06     0.06     0.00    21891     0.00     0.00     Fixnum#<
  9.09     0.32      0.03     0.03     0.00    21890     0.00     0.00     Fixnum#-
  3.03     0.33      0.01     0.01     0.00    10945     0.00     0.00     Fixnum#+
  0.00     0.33      0.33     0.00     0.33        1     0.00     0.33     #toplevel

This entry was posted by mika on Thursday, October 26th, 2006 at 11:43 and is filed under Computer, English, Links. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.