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| author | Pratik Naik <pratiknaik@gmail.com> | 2009-01-10 04:37:14 +0000 |
|---|---|---|
| committer | Pratik Naik <pratiknaik@gmail.com> | 2009-01-10 04:37:14 +0000 |
| commit | 2b384df218365f70f36ccf746d1bffe063ff09a6 (patch) | |
| tree | 5d683a847e076621113cf51261ce339ac78116d7 /railties/doc/guides/source | |
| parent | 807c1e899d48e97318df7aab901cc1c1ee927292 (diff) | |
| download | rails-2b384df218365f70f36ccf746d1bffe063ff09a6.tar.gz rails-2b384df218365f70f36ccf746d1bffe063ff09a6.tar.bz2 rails-2b384df218365f70f36ccf746d1bffe063ff09a6.zip | |
Add a note about tuning perf test runs
Diffstat (limited to 'railties/doc/guides/source')
| -rw-r--r-- | railties/doc/guides/source/performance_testing.txt | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/railties/doc/guides/source/performance_testing.txt b/railties/doc/guides/source/performance_testing.txt index a21f323f2f..e79311aa12 100644 --- a/railties/doc/guides/source/performance_testing.txt +++ b/railties/doc/guides/source/performance_testing.txt @@ -271,7 +271,7 @@ measurement,created_at,app,rails,ruby,platform ===== Command line ===== -This is a very basic form of output in profiling mode. Example : +This is a very basic form of output in profiling mode: [source, shell] ---------------------------------------------------------------------------- @@ -291,7 +291,13 @@ Graph output shows how long each method takes to run, which methods call it and ===== Tree ===== -Tree output is profiling information in calltree format for use by kcachegrind and similar tools. +Tree output is profiling information in calltree format for use by http://kcachegrind.sourceforge.net/html/Home.html[kcachegrind] and similar tools. + +=== Tuning Test Runs === + +By default, each performance test is run +4 times+ in benchmarking model and +1 time+ in profiling. However, test runs can easily be configured. + +CAUTION: That's a lie. But not for long. [[gc]] === Installing GC Patched Ruby === @@ -392,7 +398,7 @@ Please refer to http://api.rubyonrails.com/classes/ActiveRecord/Base.html#M00133 Similarly, you could use this helper method inside http://api.rubyonrails.com/classes/ActionController/Benchmarking/ClassMethods.html#M000715[controllers] -NOTE: +benchmark+ it's a class method inside controllers. +NOTE: +benchmark+ is a class method inside controllers [source, ruby] ---------------------------------------------------------------------------- @@ -438,13 +444,21 @@ This data is fairly straight forward to understand. Rails uses millisecond(ms) a Michael Koziarski has an http://www.therailsway.com/2009/1/6/requests-per-second[interesting blog post] explaining the importance of using milliseconds as the metric. -== Other Profiling Tools == +== Useful Profiling Tools == + +=== Rails Plugins and Gems === -* http://www.hpl.hp.com/research/linux/httperf/[httperf] * http://rails-analyzer.rubyforge.org/[Rails Analyzer] * http://www.flyingmachinestudios.com/projects/[Palmist] +* http://github.com/josevalim/rails-footnotes/tree/master[Rails Footnotes] + +=== External === + +* http://www.hpl.hp.com/research/linux/httperf[httperf] +* http://httpd.apache.org/docs/2.2/programs/ab.html[ab] +* http://jakarta.apache.org/jmeter[JMeter] -== Commercial products == +== Commercial Products == Rails has been lucky to have three startups dedicated to Rails specific performance tools: |