From: Eric Wong <normalperson-rMlxZR9MS24@public.gmane.org>
To: rainbows-talk-GrnCvJ7WPxnNLxjTenLetw@public.gmane.org
Subject: possible ThreadSpawn + Ruby 1.8 issues
Date: Mon, 21 Dec 2009 14:10:02 -0800 [thread overview]
Message-ID: <20091221221002.GA12277@dcvr.yhbt.net> (raw)
Anybody else using this combination? If you are, please let us know
if you have any problems with it or even if it's been working great.
I've heard (privately) about issues with accept() somehow blocking the
entire worker process under 1.8. Obviously this really should not
happen, but I'm unable to reproduce it myself.
Exact details would be most helpful:
* minor version, patchlevel, distribution of Ruby 1.8
* architecture (green threads may behave differently on 32 vs 64-bit)
* outside patches applied (REE, MBARI, zero-copy context-switch, ...)
* ./configure options (--{disable,enable}-pthread, ...)
* application/gems that use threading features internally
(includes any uses of the 'timeout' library, which Net::HTTP uses).
* Rainbows! version
Unfortunately, there are also IO.select bugs to worry about, too:
http://www.daniel-azuma.com/blog/view/z2ysbx0e4c3it9/ruby_1_8_7_io_select_threading_bug
http://redmine.ruby-lang.org/issues/show/1484
Even though we believe it's bad policy to workaround bugs when they're
fixable, 1.8 users (as evidenced by still using 1.8 :P) can be slow to
upgrade and we'll tolerate workarounds to make ThreadSpawn acceptable
under 1.8 since it's mainly designed with 1.8 in mind.
--
Eric Wong
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next reply other threads:[~2009-12-21 22:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-21 22:10 Eric Wong [this message]
[not found] ` <20091221221002.GA12277-yBiyF41qdooeIZ0/mPfg9Q@public.gmane.org>
2009-12-22 0:54 ` [PATCH] possible MRI 1.8 thread fix to avoid blocking accept() Eric Wong
[not found] ` <20091222005421.GA23044-yBiyF41qdooeIZ0/mPfg9Q@public.gmane.org>
2009-12-22 20:50 ` [PATCH 2/1] fix Ruby 1.8 detection for (possible) green thread fix Eric Wong
[not found] ` <20091222205008.GA11119-yBiyF41qdooeIZ0/mPfg9Q@public.gmane.org>
2009-12-22 21:34 ` [PATCH 3/1] base: fix constant resolution under 1.8 for 1.8 bugfix Eric Wong
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