From: Andi Kleen <ak@suse.de>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [patch 9/14] mm: page_state opt
Date: 13 Nov 2005 03:38:59 +0100 [thread overview]
Message-ID: <p73hdah46gs.fsf@verdi.suse.de> (raw)
In-Reply-To: <436DBE03.90009@yahoo.com.au>
Nick Piggin <nickpiggin@yahoo.com.au> writes:
> 9/14
>
> --
> SUSE Labs, Novell Inc.
>
> Optimise page_state manipulations by introducing a direct accessor
> to page_state fields without disabling interrupts, in which case
> the callers must provide their own locking (either disable interrupts
> or not update from interrupt context).
I have a patchkit (which i need to update for the current kernel)
which replaces this with local_t. Gives much better code and is much
simpler and doesn't require turning off interrupts anywhere.
-Andi
next prev parent reply other threads:[~2005-11-13 2:39 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-06 8:11 [rfc][patch 0/14] mm: performance improvements Nick Piggin
2005-11-06 8:20 ` [patch 1/14] mm: opt rmqueue Nick Piggin
2005-11-06 8:20 ` [patch 2/14] mm: Nick Piggin
2005-11-06 8:20 ` [patch 2/14] mm: pte prefetch Nick Piggin
2005-11-06 8:21 ` [patch 3/14] mm: release opt Nick Piggin
2005-11-06 8:22 ` [patch 4/14] mm: rmap opt Nick Piggin
2005-11-06 8:23 ` [patch 5/14] mm: set_page_refs opt Nick Piggin
2005-11-06 8:24 ` [patch 6/14] mm: microopt conditions Nick Piggin
2005-11-06 8:24 ` [patch 7/14] mm: remove bad_range Nick Piggin
2005-11-06 8:25 ` [patch 8/14] mm: remove pcp_low Nick Piggin
2005-11-06 8:25 ` [patch 9/14] mm: page_state opt Nick Piggin
2005-11-06 8:26 ` [patch 10/14] mm: single pcp list Nick Piggin
2005-11-06 8:26 ` [patch 11/14] mm: increase pcp size Nick Piggin
2005-11-06 8:27 ` [patch 12/14] mm: variable " Nick Piggin
2005-11-06 8:27 ` [patch 13/14] mm: cleanup zone_pcp Nick Piggin
2005-11-06 8:28 ` [patch 14/14] mm: page_alloc cleanups Nick Piggin
2005-11-13 2:38 ` Andi Kleen [this message]
2005-11-06 17:37 ` [patch 7/14] mm: remove bad_range Bob Picco
2005-11-07 0:58 ` Nick Piggin
2005-11-07 3:00 ` Bob Picco
2005-11-07 3:05 ` Nick Piggin
2005-11-07 1:40 ` [patch 5/14] mm: set_page_refs opt Christoph Hellwig
2005-11-07 1:45 ` Nick Piggin
2005-11-06 8:35 ` [patch 2/14] mm: pte prefetch Arjan van de Ven
2005-11-06 8:51 ` Nick Piggin
2005-11-06 17:37 ` [patch 1/14] mm: opt rmqueue Andi Kleen
2005-11-07 1:06 ` Nick Piggin
2005-11-07 3:23 ` Andi Kleen
2005-11-07 3:43 ` Nick Piggin
2005-11-07 1:39 ` [rfc][patch 0/14] mm: performance improvements Christoph Hellwig
2005-11-07 1:51 ` Nick Piggin
2005-11-07 3:57 ` Paul Jackson
2005-11-07 4:51 ` Nick Piggin
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