From: Alex Sharp <ajsharp@gmail.com>
To: unicorn list <mongrel-unicorn@rubyforge.org>
Subject: Re: Strange quit behavior
Date: Thu, 4 Aug 2011 21:12:52 -0700 [thread overview]
Message-ID: <CAB3oGjqUUBFv1KGziRSEAR5iWKa_Z-T7gWmAZosyF4TP5cKm8w@mail.gmail.com> (raw)
In-Reply-To: <CAB3oGjr48YFHi3_LVHykLEp_1EduQRAREoizUNfbjqVo2wfeTA@mail.gmail.com>
On Thu, Aug 4, 2011 at 9:09 PM, Alex Sharp <ajsharp@gmail.com> wrote:
> On Tue, Aug 2, 2011 at 2:54 PM, Eric Wong <normalperson@yhbt.net> wrote:
>> Can you try to strace (or equivalent) the old master to see what's using
>> 100% CPU?
>>
>
> All I see is a whole lot of this:
>
> sched_yield() = 0
> sched_yield() = 0
> sched_yield() = 0
> sched_yield() = 0
> sched_yield() = 0
> sched_yield() = 0
> sched_yield() = 0
> sched_yield() = 0
Actually, my fault -- the last email was the output of new master.
Running strace on the old master shows the following:
select(4, [3], NULL, NULL, {13, 466686}) = 0 (Timeout)
wait4(-1, 0x7fff57e7bfcc, WNOHANG, NULL) = 0
clock_gettime(CLOCK_REALTIME, {1312517345, 425411398}) = 0
fstat(9, {st_mode=S_IFREG, st_size=0, ...}) = 0
clock_gettime(CLOCK_REALTIME, {1312517345, 425625251}) = 0
fstat(11, {st_mode=S_IFREG, st_size=0, ...}) = 0
clock_gettime(CLOCK_REALTIME, {1312517345, 425779281}) = 0
fstat(12, {st_mode=S_IFREG, st_size=0, ...}) = 0
clock_gettime(CLOCK_REALTIME, {1312517345, 425927762}) = 0
The first line was when the master was idle, and then I threw a few
requests at it.
- alex
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next prev parent reply other threads:[~2011-08-05 5:11 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-02 20:09 Strange quit behavior James Cox
2011-08-02 20:34 ` Alex Sharp
2011-08-02 21:54 ` Eric Wong
2011-08-05 4:09 ` Alex Sharp
2011-08-05 4:12 ` Alex Sharp [this message]
2011-08-05 8:07 ` Eric Wong
2011-08-17 4:26 ` Alex Sharp
2011-08-17 9:22 ` Eric Wong
2011-08-17 20:13 ` Eric Wong
2011-08-18 23:13 ` Alex Sharp
2011-08-19 1:53 ` Eric Wong
2011-08-19 9:42 ` Alex Sharp
2011-08-19 16:51 ` Eric Wong
2011-08-23 2:59 ` Alex Sharp
2011-08-23 7:12 ` Eric Wong
2011-08-23 16:49 ` Alex Sharp
2011-08-23 20:23 ` Eric Wong
2011-08-31 0:33 ` Eric Wong
2011-09-01 18:45 ` Alex Sharp
2011-09-01 19:46 ` Eric Wong
2011-09-01 19:57 ` Alex Sharp
2011-09-01 20:26 ` Eric Wong
2011-08-02 20:45 ` cliftonk
2011-08-02 21:53 ` Eric Wong
2011-08-02 22:46 ` James Cox
2011-08-02 23:08 ` Eric Wong
2011-08-02 23:49 ` Alex Sharp
2011-08-03 0:34 ` Eric Wong
2011-08-03 1:36 ` Eric Wong
2011-08-19 22:18 ` Eric Wong
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