From: Thomas Schlichter <thomas.schlichter@web.de>
To: Con Kolivas <kernel@kolivas.org>
Cc: linux kernel mailing list <linux-kernel@vger.kernel.org>,
ck list <ck@vds.kolivas.org>
Subject: Re: [PATCH][RFC] vm: swap prefetch
Date: Thu, 1 Sep 2005 17:15:36 +0200 [thread overview]
Message-ID: <200509011715.36430.thomas.schlichter@web.de> (raw)
In-Reply-To: <200509012346.33020.kernel@kolivas.org>
Hi Con!
Am Donnerstag, 1. September 2005 15:46 schrieb Con Kolivas:
> Here is a working swap prefetching patch for 2.6.13. I have resuscitated
> and rewritten some early prefetch code Thomas Schlichter did in late 2.5 to
> create a configurable kernel thread that reads in swap from ram in reverse
> order it was written out. It does this once kswapd has been idle for a
> minute (implying no current vm stress). This patch attached below is a
> rollup of two patches the current versions of which are here:
>
> http://ck.kolivas.org/patches/swap-prefetch/
>
> These add an exclusive_timer function, and the patch that does the swap
> prefetching. I'm posting this rollup to lkml to see what the interest is in
> this feature, and for people to test it if they desire. I'm planning on
> including it in the next -ck but wanted to gauge general user opinion for
> mainline. Note that swapped in pages are kept on backing store (swap),
> meaning no further I/O is required if the page needs to swap back out.
I am (and some of my friends are) still interested in this functionality, so
I'm definitly going to test your improved patch, of course. By the way, I'm
quite happy that you came up with this new version of swap-prefetching,
because I didn't and still don't have the time to develop or maintain it
more...
So thanks for your good work, and keep on helping Linux-Desktop-Users! :-)
Thomas
prev parent reply other threads:[~2005-09-01 15:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-01 13:46 [PATCH][RFC] vm: swap prefetch Con Kolivas
2005-09-01 14:18 ` Hans Kristian Rosbach
2005-09-01 14:18 ` Con Kolivas
2005-09-02 15:01 ` [ck] " Pedro Venda
2005-09-02 14:10 ` Con Kolivas
2005-09-02 15:36 ` Pedro Venda
2005-09-01 15:15 ` Thomas Schlichter [this message]
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