From: Marcelo Tosatti <marcelo.tosatti@cyclades•com>
To: Joakim Tjernlund <Joakim.Tjernlund@lumentis•se>
Cc: linuxppc-embedded@ozlabs•org
Subject: Re: [26-devel] v2.6 performance slowdown on MPC8xx: Measuring TLB cache misses
Date: Sat, 23 Apr 2005 09:42:45 -0300 [thread overview]
Message-ID: <20050423124245.GJ12703@logos.cnet> (raw)
In-Reply-To: <BCEFJBPJCGFCNMMMIDBHMEIHCLAA.Joakim.Tjernlund@lumentis.se>
Hi Joakim,
On Sat, Apr 23, 2005 at 07:23:51PM +0200, Joakim Tjernlund wrote:
> > Now, what is the best way to bring the performance back to v2.4 levels?
> >
> > For this "dd" test, which is dominated by "sys_read/sys_write", I thought
> > of trying to bring the hotpath functions into the same pages, thus
> > decreasing the number of page translations required for such tasks.
> >
> > Comments are appreciated
>
> Does CONFIG_PIN_TLB make a difference?
No it does not.
next prev parent reply other threads:[~2005-04-23 17:48 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-23 17:23 [26-devel] v2.6 performance slowdown on MPC8xx: Measuring TLB cache misses Joakim Tjernlund
2005-04-23 12:42 ` Marcelo Tosatti [this message]
2005-04-23 21:31 ` Joakim Tjernlund
2005-04-23 21:32 ` Dan Malek
2005-04-23 21:55 ` Joakim Tjernlund
2005-04-23 22:12 ` Dan Malek
2005-04-23 17:35 ` Joakim Tjernlund
2005-04-23 21:29 ` Dan Malek
2005-04-23 21:51 ` Joakim Tjernlund
2005-04-23 22:09 ` Dan Malek
2005-04-23 23:12 ` Dan Malek
2005-04-23 23:51 ` Joakim Tjernlund
2005-04-24 0:00 ` Dan Malek
2005-04-24 16:55 ` Marcelo Tosatti
2005-04-25 9:57 ` Joakim Tjernlund
2005-05-07 18:10 ` Joakim Tjernlund
2005-05-07 14:42 ` Marcelo Tosatti
2005-05-07 20:24 ` Dan Malek
-- strict thread matches above, loose matches on Subject: below --
2005-04-21 18:32 Marcelo Tosatti
2005-04-21 18:50 ` [26-devel] " Marcelo Tosatti
2005-04-22 6:18 ` Pantelis Antoniou
2005-04-22 15:39 ` Marcelo Tosatti
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