From: "sax (Eric Saxby)" <sax@...>
Date: 2013-08-22T02:30:49+09:00
Subject: [ruby-core:56774] [ruby-trunk - Bug #8805] Ruby GC::Profiler	returns incorrect info on Solaris (and relatives)


Issue #8805 has been updated by sax (Eric Saxby).


Hi Akira,

I have one question. It looks like this has only been applied to trunk, and not to the ruby_2_0_0 branch. I'm not yet totally familiar with the version control workflow of ruby-core, but does that mean that this will be released in 2.1? Will it also be in the next patch release of 2.0?

Thank you!
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Bug #8805: Ruby GC::Profiler returns incorrect info on Solaris (and relatives)
https://bugs.ruby-lang.org/issues/8805#change-41316

Author: sax (Eric Saxby)
Status: Open
Priority: Normal
Assignee: 
Category: core
Target version: 
ruby -v: ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-solaris2.11]
Backport: 1.9.3: DONTNEED, 2.0.0: REQUIRED


We use SmartOS as our deployment platform, and noticed when attempting to roll out Ruby 2.0.0-p247 to some SmartOS hosts that garbage collection info is broken with integrations such as New Relic. Investigating further, we found that GC::Profiler.total_time always returns 0.0.

>> GC::Profiler.enable
=> nil
>> GC.start
=> nil
>> GC::Profiler.total_time
=> 0.0

It may be related to this issue: https://bugs.ruby-lang.org/issues/7500 where the mechanism by which the profiler gets timestamps from the OS.


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