From: William Lee Irwin III <wli@holomorphy.com>
To: Andrew Morton <akpm@zip.com.au>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: [patch] adjustments to dirty memory thresholds
Date: Wed, 28 Aug 2002 13:08:57 -0700 [thread overview]
Message-ID: <20020828200857.GB888@holomorphy.com> (raw)
In-Reply-To: <3D6C53ED.32044CAD@zip.com.au>
On Tue, Aug 27, 2002 at 09:39:09PM -0700, Andrew Morton wrote:
> These ratios are scaled so that as the highmem:lowmem ratio goes
> beyond 4:1, the maximum amount of allowed dirty memory ceases to
> increase. It is clamped at the amount of memory which a 4:1 machine
> is allowed to use.
This is disturbing. I suspect this is only going to raise poor memory
utilization issues on highmem boxen. Of course, "f**k highmem" is such
a common refrain these days so that's probably falling on deaf ears.
AFAICT the OOM issues are largely a by-product of mempool allocations
entering out_of_memory() when they have the perfectly reasonable
alternative strategy of simply waiting for the mempool to refill.
Cheers,
Bill
next prev parent reply other threads:[~2002-08-28 20:04 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-28 4:39 [patch] adjustments to dirty memory thresholds Andrew Morton
2002-08-28 20:08 ` William Lee Irwin III [this message]
2002-08-28 20:27 ` Andrew Morton
2002-08-28 21:42 ` William Lee Irwin III
2002-08-28 21:58 ` Andrew Morton
2002-08-28 22:15 ` Andrew Morton
2002-08-29 0:26 ` Rik van Riel
2002-08-29 2:10 ` Andrew Morton
2002-08-29 2:10 ` Rik van Riel
2002-08-29 2:52 ` Andrew Morton
2002-09-01 1:37 ` William Lee Irwin III
2002-08-29 3:49 ` William Lee Irwin III
2002-08-29 12:37 ` Rik van Riel
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