From: Anton Titov <a.titov@host.bg>
To: "Kok, Auke" <auke-jan.h.kok@intel.com>
Cc: Willy Tarreau <w@1wt.eu>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-net@vger.kernel.org,
Jesse Brandeburg <jesse.brandeburg@intel.com>
Subject: Re: Bad network performance over 2Gbps
Date: Wed, 16 Apr 2008 01:36:36 +0300 [thread overview]
Message-ID: <1208298996.23631.43.camel@localhost> (raw)
In-Reply-To: <480512BD.3060407@intel.com>
On Tue, 2008-04-15 at 13:40 -0700, Kok, Auke wrote:
> Willy Tarreau wrote:
> 1) turn the in-kernel IRQBALANCE option off !
Actually it may be already removed. I remember it being under "Processor
type and features" and I currently cannot find it there for x86_64
> 2) use either the userspace `irqbalance` daemon or
> 3) set smp_affinity manually
I tried echoing 3 (assuming that CPU0 and CPU1 will share their cache,
as advised in other mails) into smp_affinity of all ethX interrupts and
no positive result was observed.
I will try disabling NAPI and limiting e1000 interrupts tomorrow.
>
> Auke
>
> >
> > Regards,
> > Willy
> >
> > --
> > 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/
>
next prev parent reply other threads:[~2008-04-15 22:37 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-15 18:06 Bad network performance over 2Gbps Anton Titov
2008-04-15 20:14 ` Willy Tarreau
2008-04-15 20:40 ` Kok, Auke
2008-04-15 22:36 ` Anton Titov [this message]
2008-04-16 4:27 ` Willy Tarreau
[not found] ` <175f5a0f0804151315x1e192fc7p7dac1e84fd154211@mail.gmail.com>
[not found] ` <48051173.5030802@intel.com>
[not found] ` <48051734.1000107@redhat.com>
[not found] ` <1208426550.6049.10.camel@localhost>
2008-04-17 17:37 ` [PATCH] " Kok, Auke
2008-04-20 12:08 ` Denys Fedoryshchenko
2008-04-21 13:19 ` Pavel Machek
2008-04-21 16:38 ` Kok, Auke
2008-04-21 15:28 ` Ingo Molnar
2008-04-21 16:58 ` Kok, Auke
2008-04-21 18:35 ` Andi Kleen
2008-04-22 5:07 ` Bill Fink
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