NAME¶

ruby-prof - A fast ruby profiler

SYNOPSIS¶

ruby-prof options <script.rb> [--] [profiled-script-command-line-options]

DESCRIPTION¶

ruby-prof is a fast profiler for ruby. It can be used as a stand-alone program (that this man page documents) or as a ruby library. Simply run the ruby program you want to profile using ruby-prof : ruby-prof script.rb At the end of execution the time spent in each method is displayed.

OPTIONS¶

-p, --printer=printer

Select a printer:
flat - Prints a flat profile as text (default).
flat_with_line_numbers - same as flat, with line numbers.
graph - Prints a graph profile as text.
graph_html - Prints a graph profile as html.
call_tree - format for KCacheGrind
call_stack - prints a HTML visualization of the call tree
dot - Prints a graph profile as a dot file

-m, --min_percent=min_percent

The minimum percent a method must take before being included in output reports. this option is not supported for call tree.

-f, --file=path

Output results to a file instead of standard out.

--mode=measure_mode

Select what ruby-prof should measure:
process - Process time (default).
wall - Wall time.
cpu - CPU time (Pentium and PowerPCs only).
allocations - Object allocations (requires patched Ruby interpreter).
memory - Allocated memory in KB (requires patched Ruby interpreter).
gc_runs - Number of garbage collections (requires patched Ruby interpreter).
gc_time - Time spent in garbage collection (requires patched Ruby interpreter).

-s, --sort=sort_mode

Select how ruby-prof results should be sorted:
total - Total time
self - Self time
wait - Wait time
child - Child time

--replace-progname

Replace $0 when loading the .rb files.

-v

Show version, set $VERBOSE to true, profile script if option given

-d

Set $DEBUG to true

-R, --require-noprof lib

require a specific library (not profiled)

-E, --eval-noprof code

execute the ruby statements (not profiled)

-x, --exclude regexp

exclude methods by regexp (see method elimination)

-X, --exclude-file file

exclude methods by regexp listed in file (see method elimination)

--exclude-common-cycles

make common iterators like Integer#times appear inlined

--exclude-common-callbacks

make common callbacks invocations like Integer#times appear inlined so you can see call origins in graph

-h, --help

Show help message

--version

Show version 0.13.1

COPYRIGHT¶

ruby-prof was written by Shugo Maeda shugo@ruby-lang.org.

This manual page was written by Arnaud Cornet arnaud.cornet@gmail.com and updated by Jonas Genannt jonas.genannt@capi2name.de for the Debian project (but may be used by others).

SEE ALSO¶

The ruby-prof website, https://github.com/ruby-prof/ruby-prof