From: Evgeniy Polyakov <zbr@ioremap.net>
To: Christoph Lameter <cl@linux.com>
Cc: Eric Dumazet <dada1@cosmosbay.com>,
David Miller <davem@davemloft.net>,
Michael Chan <mchan@broadcom.com>,
Ben Hutchings <bhutchings@solarflare.com>,
netdev@vger.kernel.org
Subject: Re: Network latency regressions from 2.6.22 to 2.6.29 (results with IRQ affinity)
Date: Mon, 20 Apr 2009 23:44:10 +0400 [thread overview]
Message-ID: <20090420194410.GA26909@ioremap.net> (raw)
In-Reply-To: <alpine.DEB.1.10.0904201305360.1585@qirst.com>
Hi.
On Mon, Apr 20, 2009 at 01:29:54PM -0400, Christoph Lameter (cl@linux.com) wrote:
> > I only took traces on receivers to rule out different coalescing delays
> > of NIC that could depend on firmware or version
>
> Hmmm... Okay there could be a firmware influence....
Can you replace the driver in one or another kernel?
Can those be scheduler (I said wrong words I know) iteractions? Maybe
test with sched_rt priority?
--
Evgeniy Polyakov
next prev parent reply other threads:[~2009-04-20 19:44 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-16 16:10 Network latency regressions from 2.6.22 to 2.6.29 Christoph Lameter
2009-04-16 17:21 ` Rick Jones
2009-04-16 19:06 ` Christoph Lameter
2009-04-16 19:29 ` Eric Dumazet
2009-04-16 19:33 ` Christoph Lameter
2009-04-16 22:47 ` David Miller
2009-04-17 13:46 ` Christoph Lameter
2009-04-17 21:43 ` Ilpo Järvinen
2009-04-16 20:05 ` Rick Jones
2009-04-16 18:07 ` Ben Hutchings
2009-04-16 19:02 ` Christoph Lameter
2009-04-16 21:19 ` Ben Hutchings
2009-04-16 22:47 ` David Miller
2009-04-16 19:43 ` Eric Dumazet
2009-04-16 19:50 ` Eric Dumazet
2009-04-16 20:01 ` Christoph Lameter
2009-04-16 23:00 ` David Miller
2009-04-17 16:42 ` Network latency regressions from 2.6.22 to 2.6.29 (results with IRQ affinity) Christoph Lameter
2009-04-18 8:18 ` Eric Dumazet
2009-04-18 8:20 ` Eric Dumazet
2009-04-18 19:43 ` Eric Dumazet
2009-04-20 17:29 ` Christoph Lameter
2009-04-20 17:57 ` Eric Dumazet
2009-04-20 18:13 ` Christoph Lameter
2009-04-20 18:46 ` Eric Dumazet
2009-04-20 19:16 ` Christoph Lameter
2009-04-20 20:07 ` Eric Dumazet
2009-04-20 21:14 ` Christoph Lameter
2009-04-20 21:52 ` Eric Dumazet
2009-04-21 14:00 ` Christoph Lameter
2009-04-21 19:36 ` Network latency regressions from 2.6.22 to 2.6.29 (MSI off) Christoph Lameter
2009-04-20 19:44 ` Evgeniy Polyakov [this message]
2009-04-16 19:55 ` Network latency regressions from 2.6.22 to 2.6.29 Christoph Lameter
2009-04-16 21:57 ` Michael Chan
2009-04-17 13:47 ` Christoph Lameter
2009-04-16 22:59 ` David Miller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20090420194410.GA26909@ioremap.net \
--to=zbr@ioremap.net \
--cc=bhutchings@solarflare.com \
--cc=cl@linux.com \
--cc=dada1@cosmosbay.com \
--cc=davem@davemloft.net \
--cc=mchan@broadcom.com \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.