From: Dan Kegel <dank@alumni.caltech.edu>
To: Mike Jagdis <mjagdis@kokuacom.com>
Cc: Linus Torvalds <torvalds@transmeta.com>,
linux-kernel@vger.kernel.org,
"linux-scalability@citi.umich.edu"
<linux-scalability@citi.umich.edu>
Subject: Re: Linux's implementation of poll() not scalable?
Date: Wed, 01 Nov 2000 08:09:16 -0800 [thread overview]
Message-ID: <3A00402C.6509D58A@alumni.caltech.edu> (raw)
In-Reply-To: <LPBBLLNMNCOEDEJFALHPAEGBDMAA.mjagdis@kokuacom.com>
Mike Jagdis wrote:
> This patch firstly extends the wait queue mechanism
> to allow an arbitrary action to be performed. Then I rewrote
> the select/poll implementation to use event queueing to avoid
> rescanning descriptors that had not changed - and restructured
> the loops to be rather more efficient. This approach doesn't
> need any changes to driver poll routines, it doesn't need
> backwards mapping struct files. ...
> Performance graphs and the lmbench derived test programs I
> used are at http://www.purplet.demon.co.uk/linux/select/ ...
> Oh, and I updated this patch for 2.4.0-test9.
I can't wait to run my benchmark on it... hope I can get to it soon.
BTW, can you update that web page to also point to your patch?
- Dan
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next prev parent reply other threads:[~2000-11-01 16:06 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <39F529CC.2538300@alumni.caltech.edu>
2000-10-30 22:22 ` Linux's implementation of poll() not scalable? Mike Jagdis
2000-11-01 16:09 ` Dan Kegel [this message]
2000-10-28 0:46 John Gardiner Myers
[not found] <local.mail.linux-kernel/39F8D09B.F55AD0FD@alumni.caltech.edu>
[not found] ` <local.mail.linux-kernel/Pine.LNX.4.10.10010260936330.2460-100000@penguin.transmeta.com>
2000-10-27 1:35 ` Jonathan Lemon
[not found] <Pine.LNX.4.10.10010241121340.1704-100000@penguin.transmeta.com>
[not found] ` <39F61766.FC5D2D81@alumni.caltech.edu>
[not found] ` <39F6A412.DE378865@idb.hist.no>
[not found] ` <39F7054C.72FB3EA8@alumni.caltech.edu>
[not found] ` <m1aebs9i74.fsf@frodo.biederman.org>
2000-10-26 16:20 ` Dan Kegel
2000-10-26 16:44 ` Linus Torvalds
2000-10-26 19:51 ` Jim Gettys
2000-10-26 21:48 ` Dan Kegel
2000-10-27 13:56 ` Chris Swiedler
2000-10-27 0:47 ` Dan Kegel
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