From: Imre Gergely <imre.gergely@astral.ro>
To: Arjan van de Ven <arjan@infradead.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: irq balance problems?
Date: Tue, 21 Feb 2006 10:45:34 +0200 [thread overview]
Message-ID: <43FAD32E.3080608@astral.ro> (raw)
In-Reply-To: <1140509881.3082.18.camel@laptopd505.fenrus.org>
Arjan van de Ven wrote:
> On Tue, 2006-02-21 at 10:03 +0200, Imre Gergely wrote:
>> Arjan van de Ven wrote:
>>>> and irqbalance is not running, why aren't the interrupts coming from eth0
>>>> balanced between the two processors? at least that's what i understood from the
>>>> examples in Documentation/IRQ-affinity.txt. are there any other settings/kernel
>>>> parameters/compile option one has to set?
>>> it'll depend on the chipset. Some round-robin, some don't.
>>> For performance it's better to not round-robin.
>> is there a way to see for sure? or this behaviour is proof enough that it
>> doesn't do round-robin?
>
> it's pretty much proof to me already yes ;)
>
> (but why do you want round-robin? it's the worst setting for
> performance..... )
on one of the ethernet cards is much traffic, and there is htb (with many
classes and filters) used. because of this, one CPU is always on 95-100%, the
other is barely used. i wanted to see if it would improve performance if it did
balancing between the CPUs.
prev parent reply other threads:[~2006-02-21 8:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-21 7:47 irq balance problems? Imre Gergely
2006-02-21 7:56 ` Arjan van de Ven
2006-02-21 8:03 ` Imre Gergely
2006-02-21 8:18 ` Arjan van de Ven
2006-02-21 8:45 ` Imre Gergely [this message]
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=43FAD32E.3080608@astral.ro \
--to=imre.gergely@astral.ro \
--cc=arjan@infradead.org \
--cc=linux-kernel@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.