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Re: Subversion trunk (r1078338) HTTP(/WC?) performance problems?

From: Philip Martin <philip.martin_at_wandisco.com>
Date: Wed, 09 Mar 2011 16:57:31 +0000

Justin Erenkrantz <justin.erenkrantz_at_gmail.com> writes:

> On Wed, Mar 9, 2011 at 8:28 AM, Philip Martin
> <philip.martin_at_wandisco.com> wrote:
>>     0.000054 epoll_wait(3, {{EPOLLOUT, {u32=30583944, u64=30583944}}}, 16, 3600000000) = 1 <0.000011>
>
> As best as I can tell, that strace isn't matching your earlier
> description. The last epoll_wait is taking 0.000011 seconds? --
> justin

You are not looking at the right epoll_wait, look 14 lines down from the
start. That epoll_wait call takes <0.039952>. The line below that
shows a delay of 0.040042 to the subsequent read call. So epoll_wait is
responsible for nearly all the delay.

-- 
Philip
Received on 2011-03-09 17:58:10 CET

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