From: Andrew Morton <akpm@osdl.org>
To: Andrea Arcangeli <andrea@suse.de>
Cc: nickpiggin@yahoo.com.au, linux-kernel@vger.kernel.org
Subject: Re: OOM fixes 2/5
Date: Thu, 20 Jan 2005 23:00:16 -0800 [thread overview]
Message-ID: <20050120230016.442e5835.akpm@osdl.org> (raw)
In-Reply-To: <20050121065235.GD17050@dualathlon.random>
Andrea Arcangeli <andrea@suse.de> wrote:
>
> Anyway if you leave it off by default I don't mind, with my new code
> forward ported stright from 2.4 mainline, it's possible for the first
> time to set it from userspace without having to embed knowledge on the
> kernel min_kbytes settings at boot time.
Last time we dicsussed this you pointed out that reserving more lowmem from
highmem-capable allocations may actually *help* things. (Tries to remember
why) By reducing inode/dentry eviction rates? I asked Martin Bligh if he
could test that on a big NUMA box but iirc the results were inconclusive.
Maybe it just won't make much difference. Hard to say.
> The sysctl name had to change to lowmem_reserve_ratio because its
> semantics are completely different now.
That reminds me. Documentation/filesystems/proc.txt ;)
I'll cook something up for that.
next prev parent reply other threads:[~2005-01-21 7:01 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-21 5:48 OOM fixes 1/5 Andrea Arcangeli
2005-01-21 5:49 ` OOM fixes 2/5 Andrea Arcangeli
2005-01-21 5:49 ` OOM fixes 3/5 Andrea Arcangeli
2005-01-21 5:50 ` OOM fixes 4/5 Andrea Arcangeli
2005-01-21 5:50 ` OOM fixes 5/5 Andrea Arcangeli
2005-01-21 6:01 ` writeback-highmem Andrea Arcangeli
2005-01-21 6:26 ` writeback-highmem Andrew Morton
2005-01-21 6:41 ` writeback-highmem Andrea Arcangeli
2005-01-21 13:46 ` writeback-highmem Rik van Riel
2005-01-21 6:20 ` OOM fixes 2/5 Andrew Morton
2005-01-21 6:35 ` Andrea Arcangeli
2005-01-21 6:36 ` Nick Piggin
2005-01-21 6:46 ` Andrew Morton
2005-01-21 7:04 ` Nick Piggin
2005-01-21 7:17 ` Andrea Arcangeli
2005-01-21 7:04 ` Andrea Arcangeli
2005-01-21 7:08 ` Andi Kleen
2005-01-21 7:21 ` Andrea Arcangeli
2005-01-21 6:52 ` Andrea Arcangeli
2005-01-21 7:00 ` Andrew Morton [this message]
2005-01-21 7:10 ` Andrea Arcangeli
2005-01-22 6:35 ` OOM fixes 1/5 Andrea Arcangeli
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