From: Wolfgang Grandegger <wolfgang.grandegger@bluewin.ch>
To: Jon Masters <jonathan@jonmasters.org>
Cc: Dan Malek <dan@embeddededge.com>, linuxppc-embedded@lists.linuxppc.org
Subject: Re: 405 TLB miss reduction
Date: Thu, 11 Dec 2003 17:56:08 +0100 [thread overview]
Message-ID: <3FD8A1A8.2060409@bluewin.ch> (raw)
In-Reply-To: 3FD89FC3.3020301@jonmasters.org
On 12/11/2003 05:48 PM Jon Masters wrote:
>
> Wolfgang Grandegger wrote:
>
> | We have been surprised, that CONFIG_PIN_TLB was able to reduce the page
> | miss rate already by approx. 40%. We are also working on the
> | optimization/tuning of our application and likely there we can gain more
> | than by further squeezing the TBL management of the Linux kernel, I agree.
>
> I noticed a possible improvement in performance however have not yet
> done a set of tests to back this up. I saw the huge TLB stuff in
> 2.6.0-test11 and nearly fell off my chair - can someone here provide
> some reference to read on this so I can be more useful talking about it?
I found "Documentation/vm/hugetlbpage.txt" in linuxppc-2.5 from BK.
Wolfgang.
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2003-12-11 16:56 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-10 14:43 405 TLB miss reduction Wolfgang Grandegger
2003-12-10 16:03 ` Matt Porter
2003-12-11 9:06 ` Wolfgang Grandegger
2003-12-11 15:46 ` Dan Malek
2003-12-11 17:45 ` Matt Porter
2003-12-12 9:50 ` Wolfgang Grandegger
2003-12-15 11:26 ` Joakim Tjernlund
2003-12-10 17:08 ` Dan Malek
2003-12-11 10:37 ` Wolfgang Grandegger
2003-12-11 16:48 ` Jon Masters
2003-12-11 16:56 ` Wolfgang Grandegger [this message]
2003-12-11 17:06 ` Jon Masters
2003-12-11 17:36 ` Matt Porter
2003-12-11 16:44 ` Jon Masters
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