From: Chris Wedgwood <cw@f00f.org>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: David Howells <dhowells@cambridge.redhat.com>,
Andrea Arcangeli <andrea@suse.de>,
linux-kernel@vger.kernel.org
Subject: Re: Kernel is unstable
Date: Tue, 6 Mar 2001 12:06:39 +1300 [thread overview]
Message-ID: <20010306120638.A26306@metastasis.f00f.org> (raw)
In-Reply-To: <8165.983522444@warthog.cambridge.redhat.com> <Pine.LNX.4.10.10103020949230.25951-100000@penguin.transmeta.com>
In-Reply-To: <Pine.LNX.4.10.10103020949230.25951-100000@penguin.transmeta.com>; from torvalds@transmeta.com on Fri, Mar 02, 2001 at 09:52:35AM -0800
On Fri, Mar 02, 2001 at 09:52:35AM -0800, Linus Torvalds wrote:
Show me numbers for real applications, and I might care. I saw
barely measurable speedups (and more importantly to me - real
simplification) by removing it.
Do large numbers of entries hurt? I have an application that when
running for a while ends up with over 2000 entries in /proc/$$/maps
because of the way it works... that is paging is more efficient that
the application swapping data out; so it continually grows until it
can no longer at which point it falls back to using it's own poor
LRU, typically means you get a single process of around 2.9GB.
Everything appears to work... but it does seem a bit clunky that
there are so many vma chunks.
Perhaps the argument here is that glibc or the application should be
fixed?
--cw
next prev parent reply other threads:[~2001-03-05 23:07 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-01 9:16 Ivan Stepnikov
2001-03-01 10:27 ` Matti Aarnio
2001-03-01 14:35 ` Andrea Arcangeli
2001-03-01 14:39 ` Andrea Arcangeli
2001-03-01 18:20 ` Alan Cox
2001-03-01 18:30 ` Andrea Arcangeli
2001-03-01 19:12 ` Linus Torvalds
2001-03-02 8:23 ` Christoph Rohland
2001-03-02 8:40 ` David Howells
2001-03-02 14:01 ` Andrea Arcangeli
2001-03-02 17:52 ` Linus Torvalds
2001-03-05 23:06 ` Chris Wedgwood [this message]
2001-03-01 19:04 ` David S. Miller
2001-03-01 20:45 ` Andrea Arcangeli
2001-03-01 13:39 ` Richard B. Johnson
2001-03-01 14:24 ` Andrea Arcangeli
2001-03-01 17:12 ` Ingo Oeser
2001-03-01 13:55 Heusden, Folkert van
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