Loading of rb files is much slower in JRuby than in MRI (2x-5x)
---------------------------------------------------------------
Key: JRUBY-4263
URL: http://jira.codehaus.org/browse/JRUBY-4263
Project: JRuby
Issue Type: Bug
Components: Parser, Performance
Environment: latest jruby from master branch
Reporter: Vladimir Sizikov
Assignee: Thomas E Enebo
I've just comitted the bench/bench_load.rb benchmark, and we are 2x-5x slower
then MRI (varies a bit between platforms). This is one of those issues
identified while trying to make JRuby startup faster.
Essentially, cold load/require is pretty bad in JRuby. Hopefully, this
benchmark could help out to narrow some cases.
When just loading/requiring 'fileutils' takes 200ms, that's bad.
{noformat}
#>jruby bench/bench_load.rb
user system total real
1 load 'fileutils-like' 0.186000 0.000000 0.186000 ( 0.157000)
1K load 'fileutils-like' 12.336000 0.000000 12.336000 ( 12.336000)
1K load 'rational' 3.698000 0.000000 3.698000 ( 3.698000)
10K require 'non-existing' 5.024000 0.000000 5.024000 ( 5.024000)
#>ruby bench/bench_load.rb
user system total real
1 load 'fileutils-like' 0.000000 0.020000 0.020000 ( 0.017378)
1K load 'fileutils-like' 1.870000 1.790000 3.660000 ( 3.662594)
1K load 'rational' 0.710000 0.700000 1.410000 ( 1.461065)
10K require 'non-existing' 0.280000 0.610000 0.890000 ( 0.889232)
{noformat}
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://jira.codehaus.org/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe from this list, please visit:
http://xircles.codehaus.org/manage_email
