From: Samium Gromoff <_deepfire@mail.ru>
To: phillips@bonn-fries.net (Daniel Phillips)
Cc: linux-kernel@vger.kernel.org
Subject: Re: Rik`s ac12-pmap2 vs ac12-vanilla perfcomp
Date: Sun, 2 Sep 2001 21:46:27 +0000 (UTC) [thread overview]
Message-ID: <200109022146.f82LkS904034@-f> (raw)
In-Reply-To: <20010902165742Z16375-32383+3005@humbolt.nl.linux.org> from "Daniel Phillips" at Sep 02, 2001 07:04:32 PM
Daniel Phillips wrote:
> > One thing that goes away with rmaps is the need to scan process page tables.
> It's possible that this takes enough load off L1 cache to produce the effects
I feel like that.
actually there was a fear that the overhead of reverse map maintenance
will overthrow the gain on low loads, but in my case this isnt an issue.
> you showed, though it would be surprising.
>
> (Note that I'm in the "reverse maps are good" camp, and I think Rik's design
> is fundamentally correct.)
me too...
>
> --
> Daniel
>
next prev parent reply other threads:[~2001-09-02 17:25 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-02 17:10 Samium Gromoff
2001-09-02 13:11 ` Rik van Riel
2001-09-02 17:04 ` Daniel Phillips
2001-09-02 21:46 ` Samium Gromoff [this message]
2001-09-02 17:51 ` Daniel Phillips
2001-09-02 22:18 ` Samium Gromoff
2001-09-03 15:22 ` Marcelo Tosatti
2001-09-03 9:58 ` Rik van Riel
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