From: Dan Kegel <dank@kegel.com>
To: Shailabh Nagar <nagar@watson.ibm.com>
Cc: Benjamin LaHaise <bcrl@redhat.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-aio <linux-aio@kvack.org>, Andrew Morton <akpm@digeo.com>,
David Miller <davem@redhat.com>,
Linus Torvalds <torvalds@transmeta.com>,
Stephen Tweedie <sct@redhat.com>
Subject: Re: [PATCH] async poll for 2.5
Date: Tue, 15 Oct 2002 11:53:48 -0700 [thread overview]
Message-ID: <3DAC643C.86A016B4@kegel.com> (raw)
In-Reply-To: 3DAC59ED.2070405@watson.ibm.com
Shailabh Nagar wrote:
> Are there any performance numbers for F_SETSIG/F_SETOWN/SIGIO on 2.5 ?
I don't recall any. (I suppose I should get off my butt and start
running 2.5.)
> Does it scale with the number of active connections too ?
The overhead is probably mostly linear with activity, I don't know.
> Signal-per-fd seems to be a decent alternative (from the measurements on
> Davide's /dev/epoll page) but Vitaly Luban's patch for that isn't available
> for 2.5 so I'm not sure what other issues it might have.
Seems like the thing to do is to move /dev/epoll over to use
Ben's event system rather than worry about the old /dev/epoll interface.
But like signal-per-fd, we will want to collapse readiness events,
which is something Ben's event system might not do naturally.
(I wouldn't know -- I haven't actually looked at Ben's code.)
- Dan
next prev parent reply other threads:[~2002-10-15 18:36 UTC|newest]
Thread overview: 138+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-14 22:36 [PATCH] async poll for 2.5 Shailabh Nagar
2002-10-14 22:54 ` John Myers
2002-10-15 15:05 ` Benjamin LaHaise
2002-10-15 17:06 ` Dan Kegel
2002-10-15 17:03 ` Benjamin LaHaise
2002-10-15 17:18 ` Dan Kegel
2002-10-16 2:11 ` Lincoln Dale
2002-10-15 18:09 ` Shailabh Nagar
2002-10-15 18:53 ` Dan Kegel [this message]
2002-10-15 18:57 ` Benjamin LaHaise
2002-10-15 20:25 ` John Gardiner Myers
2002-10-15 21:09 ` Dan Kegel
2002-10-15 21:50 ` John Myers
2002-10-15 22:33 ` Davide Libenzi
2002-10-15 22:56 ` John Gardiner Myers
2002-10-15 23:23 ` Davide Libenzi
2002-10-16 19:16 ` John Myers
2002-10-15 21:11 ` Davide Libenzi
2002-10-15 22:01 ` John Gardiner Myers
2002-10-15 22:27 ` Davide Libenzi
2002-10-15 22:36 ` John Gardiner Myers
2002-10-15 22:41 ` Benjamin LaHaise
2002-10-15 23:26 ` John Gardiner Myers
2002-10-15 23:05 ` Davide Libenzi
2002-10-15 23:33 ` John Gardiner Myers
2002-10-16 0:05 ` Davide Libenzi
2002-10-16 0:15 ` John Myers
2002-10-16 14:25 ` Davide Libenzi
2002-10-16 18:15 ` John Gardiner Myers
2002-10-16 19:20 ` Davide Libenzi
2002-10-16 23:31 ` epoll (was Re: [PATCH] async poll for 2.5) John Gardiner Myers
2002-10-16 23:51 ` Davide Libenzi
2002-10-17 18:06 ` John Gardiner Myers
2002-10-17 18:33 ` Davide Libenzi
2002-10-18 19:02 ` John Gardiner Myers
2002-10-18 19:52 ` Davide Libenzi
2002-10-19 0:55 ` John Myers
2002-10-19 5:40 ` Davide Libenzi
2002-10-19 6:59 ` Mark Mielke
2002-10-19 17:26 ` Davide Libenzi
2002-10-19 17:48 ` Dan Kegel
2002-10-19 18:52 ` Charles 'Buck' Krasic
2002-10-19 20:18 ` Charles 'Buck' Krasic
2002-10-19 21:08 ` Dan Kegel
2002-10-22 19:35 ` John Gardiner Myers
2002-10-22 20:06 ` Davide Libenzi
2002-10-22 21:54 ` Erich Nahum
2002-10-22 22:17 ` Dan Kegel
2002-10-22 22:25 ` Davide Libenzi
2002-10-18 21:01 ` Charles 'Buck' Krasic
2002-10-18 21:33 ` Davide Libenzi
2002-10-19 1:05 ` John Myers
2002-10-19 1:27 ` Tervel Atanassov
2002-10-19 18:52 ` John G. Myers
2002-10-19 4:07 ` Charles 'Buck' Krasic
2002-10-16 20:06 ` [PATCH] async poll for 2.5 Mark Mielke
2002-10-16 23:48 ` epoll (was Re: [PATCH] async poll for 2.5) John Gardiner Myers
2002-10-17 0:23 ` Davide Libenzi
2002-10-17 17:45 ` John Myers
2002-10-16 2:45 ` [PATCH] async poll for 2.5 Charles 'Buck' Krasic
2002-10-16 14:28 ` Davide Libenzi
2002-10-17 18:47 ` Charles 'Buck' Krasic
2002-10-17 19:20 ` Davide Libenzi
2002-10-18 3:30 ` Dan Kegel
2002-10-16 18:29 ` John Gardiner Myers
2002-10-16 20:39 ` Charles 'Buck' Krasic
2002-10-17 17:59 ` epoll (was Re: [PATCH] async poll for 2.5) John Gardiner Myers
2002-10-21 16:58 ` [PATCH] async poll for 2.5 Alan Cox
2002-10-21 16:50 ` Benjamin LaHaise
2002-10-16 19:59 ` Dan Kegel
2002-10-16 20:03 ` Dan Kegel
2002-10-17 17:43 ` epoll (was Re: [PATCH] async poll for 2.5) John Myers
2002-10-18 17:00 ` Mark Mielke
2002-10-18 17:28 ` Dan Kegel
2002-10-18 17:41 ` Davide Libenzi
2002-10-18 18:55 ` Mark Mielke
2002-10-18 19:16 ` Davide Libenzi
2002-10-19 6:56 ` Mark Mielke
2002-10-19 16:10 ` Charles 'Buck' Krasic
2002-10-22 17:22 ` Mark Mielke
2002-10-22 17:46 ` Dan Kegel
2002-10-22 17:47 ` Davide Libenzi
2002-10-22 18:13 ` Alan Cox
2002-10-22 18:18 ` Davide Libenzi
2002-10-22 18:37 ` Benjamin LaHaise
2002-10-22 19:49 ` Davide Libenzi
2002-10-22 19:22 ` John Gardiner Myers
2002-10-22 19:28 ` Benjamin LaHaise
2002-10-22 19:50 ` John Gardiner Myers
2002-10-22 20:00 ` Benjamin LaHaise
2002-10-23 11:10 ` Latest aio code " Suparna Bhattacharya
2002-10-22 20:23 ` async poll John Myers
2002-10-22 18:42 ` epoll (was Re: [PATCH] async poll for 2.5) Charles 'Buck' Krasic
2002-10-22 19:35 ` Davide Libenzi
2002-10-23 16:49 ` Dan Kegel
2002-10-23 17:39 ` Benjamin LaHaise
2002-10-23 18:47 ` Davide Libenzi
2002-10-23 21:18 ` Benjamin LaHaise
2002-10-23 21:35 ` Davide Libenzi
2002-10-23 21:39 ` John Gardiner Myers
2002-10-23 21:54 ` Davide Libenzi
2002-10-23 17:49 ` Charles 'Buck' Krasic
2002-10-23 18:14 ` Davide Libenzi
2002-10-23 18:32 ` Charles 'Buck' Krasic
2002-10-23 20:36 ` async poll John Myers
2002-10-23 20:57 ` Dan Kegel
2002-10-23 21:13 ` Charles 'Buck' Krasic
2002-10-23 21:23 ` John Gardiner Myers
2002-10-23 21:51 ` Davide Libenzi
2002-10-23 21:51 ` bert hubert
2002-10-23 22:10 ` Davide Libenzi
2002-10-23 21:54 ` John Gardiner Myers
2002-10-23 22:22 ` Davide Libenzi
2002-10-23 22:29 ` John Gardiner Myers
2002-10-23 22:50 ` Davide Libenzi
2002-10-24 7:32 ` Eduardo Pérez
2002-10-24 15:05 ` Charles 'Buck' Krasic
2002-10-23 22:24 ` Dan Kegel
2002-10-23 22:30 ` Davide Libenzi
2002-10-23 22:53 ` Davide Libenzi
2002-10-19 17:19 ` epoll (was Re: [PATCH] async poll for 2.5) Davide Libenzi
2002-10-18 18:55 ` Chris Friesen
2002-10-18 19:00 ` Mark Mielke
2002-10-15 17:38 ` [PATCH] async poll for 2.5 Shailabh Nagar
2002-10-15 17:50 ` Benjamin LaHaise
2002-10-15 18:16 ` Davide Libenzi
2002-10-15 18:18 ` Shailabh Nagar
2002-10-15 19:00 ` Davide Libenzi
2002-10-15 19:02 ` Benjamin LaHaise
2002-10-15 18:59 ` Shailabh Nagar
2002-10-15 19:16 ` Davide Libenzi
2002-10-15 19:12 ` Benjamin LaHaise
2002-10-15 19:31 ` Davide Libenzi
2002-10-15 19:38 ` Dan Kegel
2002-10-15 19:55 ` Davide Libenzi
2002-10-15 20:36 ` John Gardiner Myers
2002-10-15 20:39 ` Benjamin LaHaise
2002-10-15 19:02 ` Davide Libenzi
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