Questions tagged [ruby-prof]
34 questions
2
votes
1 answer
Why does ruby-prof list "Kernel#`" as a resource hog?
I'm using ruby-prof to figure out where my CPU time is going for a small 2D game engine I'm building in Ruby. Everything looks normal here aside from the main Kernel#` entry. The Ruby docs here would suggest that this is a function for getting the…
taylorthurlow
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2
votes
2 answers
Low-overhead Ruby profiling?
I have a Ruby program that takes about 4 minutes to complete task and I'd like to get it down to under 1 minute.
I tried ruby-prof from gem but enabling it increases running times to ~30 minutes, and doesn't even seem to preserve monotonicity…
taw
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2
votes
2 answers
Is it possible to ignore irrelevant methods when profiling ruby applications?
While using ruby-prof, printed out in graph-html mode, the report for one method says (with some snipping)
%Total %Self Total Self Wait Child Calls Name Line
52.85% 0.00% 51.22 0.00 0.00 …
Andrew Grimm
- 78,473
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1
vote
1 answer
Ruby profiler results interpretation
I'm using a ruby-prof gem to profile my code.
And results looks like this:
%self total self wait child calls name
50.56 31.06 23.45 0.00 7.62 234593 Array#each
14.29 6.62 6.62 0.00 0.00 …
taro
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1
vote
2 answers
undefined method 'threads' using ruby-prof
I'm trying to use ruby-prof to profile some code. It seems to work up until the line indicated below:
require 'rubygems'
require 'ruby-prof'
result = RubyProf.start do
puts "do stuff..."
end
printer =…
recursive_acronym
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1
vote
1 answer
ruby-prof "Wait" column in the results: what is it?
The results for the ruby-prof output always contains a value for the "Wait" column. However, I've never found a description of what this value is and in all the times I've used ruby-prof, I've never seen this column ever take on a value other than…
Pete
- 17,885
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1
vote
1 answer
rails performance test is failing
Simple performance test, I have installed ruby-prof and no other gems
are missing,
rake test:profile returns the following error.
the test is simply.
require 'test_helper'
require 'performance_test_help'
# Profiling results for each test method are…
badnaam
- 1,876
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1
vote
0 answers
Reading ruby-prof stack html output - I am confused
I used ruby-prof to generate stack call graph. It generates its very nice, but it shows only 3 of like 10 calls inside the method.
These 3 calls, according to timing consume like 100% time inside this method.
I assume that other calls are not shown,…
Sławosz
- 11,187
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1
vote
1 answer
Ruby-prof with graph printer and sorting by self puts out total percentages higher than 100%
If I run
ruby-prof -p graph -s self aggregate.rb > graph.txt
the first few lines of my graph.txt will look like:
Total Time: 40.092432
%total %self total self wait child calls …
kaihowl
- 372
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1
vote
1 answer
Is there a trick to profiling memory usage w/ ruby-prof using an rvm gemset?
I've been trying to get ruby-prof working for memory usage on Mac OS X w/ Ruby 1.8.7 and so far I'm not having much luck.
I understand from the documentation that RubyProf::MEMORY mode requires a patched version of Ruby. I've tried installing the…
Dan Tao
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0
votes
2 answers
rails ruby-prof and benchmark testing
I'm running Rails 2.2.2. I've read a few articles about ruby-prof and profiling a rails app. And I'm confused as to how things are really working.
I was originally using this tutorial…
brad
- 31,987
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0
votes
1 answer
run ruby-prof with a script that takes arguments
I know how to start ruby-prof with a script:
ruby-prof -p multi [SCRIPT_PATH]/my_script.rb
but how can I run ruby-prof with a script that takes arguments ?
Mohamed Hakki
- 88
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0
votes
1 answer
Can I reuse my integration test suite to profile a Rails app?
Most posts on Rails profiling recommend Ruby-Prof. To use Ruby-Prof I need to write at least one new test for each controller action, then manually compare the results to see what's taking the longest and might be a candidate for optimization.
This…
Sasgorilla
- 2,403
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0
votes
2 answers
Profile memory-performance for part of an rails project
I want to test the profile usage of an important library-class of my rails-project. It uses ActiveRecord so I need all rails dependencies to profile it.
As far as I know, I need a patched ruby (rubygc) so script/profile and script/benchmark can…
Florian Pilz
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0
votes
1 answer
What's the purpose of ruby-prof in NewRelic agent?
I tested the ruby agent 3.7.1.188 of New Relic but I don't understand the purpose of the ruby-prof gem. When I go to http://localhost:3000/newrelic, on the right side is a message that says that I can use the ruby-prof gem to display profiles. So I…
NMO
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