lkml.org 
[lkml]   [2006]   [Jun]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch] epoll use unlocked wqueue operations ...
On Sun, 4 Jun 2006, Willy TARREAU wrote:

>> Well, we take a lock less but I can't say if it'll be measureable. The
>> test program above is not a performance thing though, just some code to
>> verify multiple threads doing waits on the same epoll fd.
>
> OK, so I ported your patch to 2.4 (+epoll-lt-0.22) because I have some
> code using it right there. At first, I thought I was observing measuring
> errors, but after about 6 reboots, I seem to observe a consistent 6.5%
> increase in the number of sessions/s on my fake web server on my dual
> athlon. It jumps from 14350 hits/s with epoll-lt-0.22 alone to 15300 with
> your patch. It seems much to me, but I'm sure I'm not dreaming (yet).

Ok, that's measureable :)


> I'll send you (offlist) an update to 2.4-epoll-lt-0.22 which incorporates
> this patch.

Thx for the patch. Got it and uploaded.


- Davide


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-06-05 03:04    [W:0.061 / U:0.336 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site