linux-kernel - Re: [PATCH 0 of 9] x86/smp function calls: convert x86 tlb flushes to use function calls [POST 2]

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Date:	Tue, 19 Aug 2008 12:20:45 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Nick Piggin <nickpiggin@...oo.com.au>
Cc:	Jeremy Fitzhardinge <jeremy@...p.org>,
	LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
	Andi Kleen <andi@...stfloor.org>,
	Jens Axboe <jens.axboe@...cle.com>
Subject: Re: [PATCH 0 of 9] x86/smp function calls: convert x86 tlb flushes
	to use function calls [POST 2]


* Nick Piggin <nickpiggin@...oo.com.au> wrote:

> I'm especially sore about mmap because I have a customer with a 
> database that uses a lot of mmap/munmap and those calls have slowed 
> down something like 50%(!!) from 2.6.early to 2.6.late.

oh, agreed that it all needs to speed up - please send testcases ...

	Ingo
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