From: Linus Torvalds <torvalds@transmeta.com>
To: Rik van Riel <H.H.vanRiel@fys.ruu.nl>
Cc: linux-mm <linux-mm@kvack.org>, "Stephen C. Tweedie" <sct@dcs.ed.ac.uk>
Subject: Re: kswapd logic improvement
Date: Thu, 26 Feb 1998 10:39:41 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.3.95.980226103551.18363C-100000@penguin.transmeta.com> (raw)
In-Reply-To: <Pine.LNX.3.91.980226172956.1153A-100000@mirkwood.dummy.home>
On Thu, 26 Feb 1998, Rik van Riel wrote:
>
> here's another short patch for 2.1.88. Basically
> it improves the kswapd logic. Currently kswapd
> will give up when it fails three times in a row,
> even when it hasn't any memory yet.
Look at the pre-89's on ftp.kernel.org - I changed kswapd around quite a
bit, because I want the machine to remain up when you get lots of atomic
get_free_page() calls that would otherwise not even have woken up kswapd
depending on how "min_pages_free" was set up and what the fragmentation
was.
I'm not saying that the pre-89 is any better, but it is sufficiently
different that I'd like to hear comments about it. I suspect it really
needs tweaking kswapd, for example - it might result in bad latency right
now because kswapd is so high-priority and if it isn't able to unfragment
easily it might run for a while..
Could you send patches relative to that (including your other patch, I'd
be happier to know that you've tested that patch against my current kernel
too),
Linus
prev parent reply other threads:[~1998-02-26 18:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-02-26 16:34 Rik van Riel
1998-02-26 18:39 ` Linus Torvalds [this message]
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