From: Andreas Mohr <andim2@users.sourceforge.net>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org, lse-tech@lists.sourceforge.net,
linux-mm@kvack.org, wli@holomorphy.com
Subject: Re: mm/hugetlb.c/alloc_fresh_huge_page(): slow division on NUMA
Date: Thu, 23 Mar 2006 12:56:01 +0100 [thread overview]
Message-ID: <20060323115601.GA1044@rhlx01.fht-esslingen.de> (raw)
In-Reply-To: <20060323034750.2ba076f0.akpm@osdl.org>
Hi,
On Thu, Mar 23, 2006 at 03:47:50AM -0800, Andrew Morton wrote:
> Andreas Mohr <andi@rhlx01.fht-esslingen.de> wrote:
> >
> > on NUMA there
> > indeed is an idiv opcode in the mm/hugetlb.o output:
> >
> > 138: e8 fc ff ff ff call 139 <alloc_fresh_huge_page+0x32>
>
> Stop looking at ancient 2.6.16 kernels. That code isn't there any more ;)
Hrmpf. I had just gotten some awful suspicion when looking at 2.6.16-mm1
changelog mentioning hugemem changes. Oh well...
I'm going to hunt for similar modulo cases in the future.
Andreas
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prev parent reply other threads:[~2006-03-23 11:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-23 11:08 Andreas Mohr
2006-03-23 11:47 ` Andrew Morton
2006-03-23 11:56 ` Andreas Mohr [this message]
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