From: ebiederm+eric@ccr.net (Eric W. Biederman)
To: "Stephen C. Tweedie" <sct@redhat.com>
Cc: linux-mm@kvack.org
Subject: Re: [2.1.130-3] Page cache DEFINATELY too persistant... feature?
Date: 30 Nov 1998 16:00:18 -0600 [thread overview]
Message-ID: <m1n25896z1.fsf@flinx.ccr.net> (raw)
In-Reply-To: "Stephen C. Tweedie"'s message of "Mon, 30 Nov 1998 11:13:44 GMT"
I just performed one more test on
pre-linux-2.1.130 + Stephan Tweedies vm patch.
I went into proc
and changed pagecache from:
5 30 75 to 0 100 100
Then I ran my test program.
Until it was done running the system was locked up.
The same results happend with
0 75 75
With 0 30 75 however I can finish composing this email.
I now know definentily that this is an autobalancing problem.
My suggestion would be to drop a call to shrink_mmap immediately
after swap_out with the same size. And to ignore it's return code.
But however we do it, in cases of heavy swapping we need to call shrink_mmap
more often.
Perhaps this evening I can try some more.
Eric
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prev parent reply other threads:[~1998-12-01 0:29 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <199811261236.MAA14785@dax.scot.redhat.com>
[not found] ` <Pine.LNX.3.95.981126094159.5186D-100000@penguin.transmeta.com>
1998-11-27 16:02 ` [2.1.130-3] Page cache DEFINATELY too persistant... feature? Stephen C. Tweedie
1998-11-27 17:19 ` Chip Salzenberg
1998-11-27 18:31 ` Linus Torvalds
1998-11-27 19:58 ` Zlatko Calusic
1998-11-30 11:15 ` Stephen C. Tweedie
1998-11-30 23:13 ` Zlatko Calusic
1998-11-30 12:37 ` Rik van Riel
1998-11-30 15:12 ` Zlatko Calusic
1998-11-30 19:29 ` Rik van Riel
1998-11-30 22:27 ` Zlatko Calusic
1998-11-30 23:11 ` Rik van Riel
1998-11-30 20:20 ` Andrea Arcangeli
1998-11-30 22:28 ` Zlatko Calusic
1998-11-28 7:31 ` Eric W. Biederman
1998-11-30 11:13 ` Stephen C. Tweedie
1998-11-30 15:08 ` Rik van Riel
1998-11-30 21:40 ` Eric W. Biederman
1998-11-30 22:00 ` Eric W. Biederman [this message]
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