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From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Andrew Morton <akpm@osdl.org>
Cc: David Howells <dhowells@redhat.com>,
	Linus Torvalds <torvalds@osdl.org>,
	Linux Kernel Mailing List <Linux-Kernel@vger.kernel.org>
Subject: Re: [patch] mm: cleanup bootmem
Date: Sat, 14 Jan 2006 23:47:24 +1100	[thread overview]
Message-ID: <43C8F2DC.1090400@yahoo.com.au> (raw)
In-Reply-To: <43C8F198.3010609@yahoo.com.au>

Nick Piggin wrote:
> Objections?
> 
> 
> ------------------------------------------------------------------------
> 
> The bootmem code added to page_alloc.c duplicated some page freeing code
> that it really doesn't need to because it is not so performance critical.
> 

... but actually it is possible that it ends up being faster with this
patch anyway, due to the old code freeing the pages as higher order
batches: they won't have to go through as many iterations in the buddy
allocator. This patch restores that behaviour as well.

-- 
SUSE Labs, Novell Inc.

Send instant messages to your online friends http://au.messenger.yahoo.com 

  reply	other threads:[~2006-01-14 12:48 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-01-14 12:42 [patch] mm: cleanup bootmem Nick Piggin
2006-01-14 12:47 ` Nick Piggin [this message]
2006-01-14 17:50 ` Linus Torvalds
2006-01-14 18:02   ` Nick Piggin
2006-01-14 18:06     ` Nick Piggin
2006-01-14 18:13       ` Linus Torvalds
2006-01-14 18:43         ` Nick Piggin
2006-01-16  8:53         ` Jes Sorensen
2006-01-16 15:25           ` Jack Steiner

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