From: Andi Kleen <andi@firstfloor.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nick Piggin <npiggin@suse.de>, Jens Axboe <jens.axboe@oracle.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-fsdevel@vger.kernel.org,
Ravikiran G Thirumalai <kiran@scalex86.org>,
Peter Zijlstra <peterz@infradead.org>
Subject: Re: [rfc][patch] store-free path walking
Date: Wed, 07 Oct 2009 22:34:24 +0200 [thread overview]
Message-ID: <87eipfymcv.fsf@basil.nowhere.org> (raw)
In-Reply-To: <alpine.LFD.2.01.0910071222230.3432@localhost.localdomain> (Linus Torvalds's message of "Wed, 7 Oct 2009 12:25:03 -0700 (PDT)")
Linus Torvalds <torvalds@linux-foundation.org> writes:
>
> Sad. But we do have the added requirement that we want to keep the
> commonly used fields together in the same cacheline, so maybe it's
> unavoidable.
With some strategic prefetches it might be cheap enough to use
two cache lines. Just fetch it with the other.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2009-10-07 20:34 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-06 6:49 Latest vfs scalability patch Nick Piggin
2009-10-06 10:14 ` Jens Axboe
2009-10-06 10:26 ` Jens Axboe
2009-10-06 11:10 ` Peter Zijlstra
2009-10-06 12:51 ` Jens Axboe
2009-10-06 12:26 ` Nick Piggin
2009-10-06 12:49 ` Jens Axboe
2009-10-07 8:58 ` [rfc][patch] store-free path walking Nick Piggin
2009-10-07 9:56 ` Jens Axboe
2009-10-07 10:10 ` Nick Piggin
2009-10-12 3:58 ` Nick Piggin
2009-10-12 5:59 ` Nick Piggin
2009-10-12 8:20 ` Jens Axboe
2009-10-12 11:00 ` Jens Axboe
2009-10-13 1:26 ` Christoph Hellwig
2009-10-13 1:52 ` Nick Piggin
2009-10-07 14:56 ` Linus Torvalds
2009-10-07 16:27 ` Linus Torvalds
2009-10-07 16:46 ` Nick Piggin
2009-10-07 19:25 ` Linus Torvalds
2009-10-07 20:34 ` Andi Kleen [this message]
2009-10-07 20:51 ` Linus Torvalds
2009-10-07 21:06 ` Andi Kleen
2009-10-07 21:20 ` Linus Torvalds
2009-10-07 21:57 ` Linus Torvalds
2009-10-07 22:22 ` Andi Kleen
2009-10-08 7:39 ` Nick Piggin
2009-10-09 17:53 ` Andi Kleen
2009-10-08 13:12 ` Denys Vlasenko
2009-10-09 7:47 ` Nick Piggin
2009-10-09 17:49 ` Andi Kleen
2009-10-07 16:29 ` Nick Piggin
2009-10-08 12:36 ` Nick Piggin
2009-10-08 12:57 ` Jens Axboe
2009-10-08 13:22 ` Nick Piggin
2009-10-08 13:30 ` Jens Axboe
2009-10-08 18:00 ` Peter Zijlstra
2009-10-09 4:04 ` Nick Piggin
2009-10-09 8:54 ` Jens Axboe
2009-10-09 9:51 ` Jens Axboe
2009-10-09 10:02 ` Nick Piggin
2009-10-09 10:08 ` Jens Axboe
2009-10-09 10:07 ` Nick Piggin
2009-10-09 3:50 ` Nick Piggin
2009-10-09 6:15 ` David Miller
2009-10-09 10:40 ` Nick Piggin
2009-10-09 11:09 ` Jens Axboe
2009-10-09 10:44 ` Nick Piggin
2009-10-09 10:48 ` Jens Axboe
2009-10-09 23:16 ` Paul E. McKenney
2009-10-15 10:08 ` Latest vfs scalability patch Anton Blanchard
2009-10-15 10:39 ` Nick Piggin
2009-10-15 10:46 ` Anton Blanchard
2009-10-15 10:53 ` Nick Piggin
2009-10-15 11:23 ` Anton Blanchard
2009-10-15 11:41 ` Nick Piggin
2009-10-15 11:48 ` Nick Piggin
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