From: Andi Kleen <andi@firstfloor.org>
To: Matthew Wilcox <matthew@wil.cx>
Cc: Jens Axboe <jens.axboe@oracle.com>,
Andi Kleen <andi@firstfloor.org>,
linux-kernel@vger.kernel.org, "Styner,
Douglas W" <douglas.w.styner@intel.com>,
Chinang Ma <chinang.ma@intel.com>,
"Prickett, Terry O" <terry.o.prickett@intel.com>,
Matthew Wilcox <matthew.r.wilcox@intel.com>,
Eric.Moore@lsi.com, DL-MPTFusionLinux@lsi.com
Subject: Re: >10% performance degradation since 2.6.18
Date: Fri, 3 Jul 2009 21:54:58 +0200 [thread overview]
Message-ID: <20090703195458.GK2041@one.firstfloor.org> (raw)
In-Reply-To: <20090703194557.GQ5480@parisc-linux.org>
> That would seem to be a fruitful avenue of
> investigation -- whether limiting the cards to a single RX/TX interrupt
> would be advantageous, or whether spreading the eight interrupts out
> over the CPUs would be advantageous.
The kernel should really do the per cpu binding of MSIs by default.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2009-07-03 19:55 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-03 2:56 >10% performance degradation since 2.6.18 Matthew Wilcox
2009-07-03 17:04 ` Paul E. McKenney
2009-07-03 18:19 ` Andi Kleen
2009-07-03 18:54 ` Jens Axboe
2009-07-03 19:13 ` Matthew Wilcox
2009-07-03 19:22 ` Jens Axboe
2009-07-03 19:45 ` Matthew Wilcox
2009-07-03 19:54 ` Andi Kleen [this message]
2009-07-03 20:04 ` Arjan van de Ven
2009-07-03 23:35 ` Andi Kleen
2009-07-04 6:04 ` Arjan van de Ven
2009-07-04 8:44 ` Andi Kleen
2009-07-04 9:19 ` Jeff Garzik
2009-07-05 4:01 ` Herbert Xu
2009-07-05 13:09 ` Matthew Wilcox
2009-07-05 16:11 ` Herbert Xu
2009-07-06 8:38 ` Andi Kleen
2009-07-05 20:44 ` Jeff Garzik
2009-07-06 1:19 ` Herbert Xu
2009-07-06 8:45 ` Andi Kleen
2009-07-06 17:00 ` Rick Jones
2009-07-06 17:36 ` Ma, Chinang
2009-07-06 17:42 ` Matthew Wilcox
2009-07-06 17:57 ` Ma, Chinang
2009-07-06 18:05 ` Matthew Wilcox
2009-07-06 18:48 ` Ma, Chinang
2009-07-06 18:53 ` Matthew Wilcox
2009-07-06 21:16 ` Ma, Chinang
2009-07-07 8:16 ` Andi Kleen
-- strict thread matches above, loose matches on Subject: below --
2009-07-05 11:00 Daniel J Blueman
2009-07-06 21:58 ` Chetan.Loke
2009-07-07 22:05 ` Daniel J Blueman
2009-07-08 15:03 ` Chetan.Loke
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=20090703195458.GK2041@one.firstfloor.org \
--to=andi@firstfloor.org \
--cc=DL-MPTFusionLinux@lsi.com \
--cc=Eric.Moore@lsi.com \
--cc=chinang.ma@intel.com \
--cc=douglas.w.styner@intel.com \
--cc=jens.axboe@oracle.com \
--cc=linux-kernel@vger.kernel.org \
--cc=matthew.r.wilcox@intel.com \
--cc=matthew@wil.cx \
--cc=terry.o.prickett@intel.com \
/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.