From: Dan Kegel <dank@kegel.com>
To: Benjamin LaHaise <bcrl@redhat.com>
Cc: Shailabh Nagar <nagar@watson.ibm.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 10:06:22 -0700 [thread overview]
Message-ID: <3DAC4B0E.EBB3A2AB@kegel.com> (raw)
In-Reply-To: 20021015110501.B11395@redhat.com
Benjamin LaHaise wrote:
>
> On Mon, Oct 14, 2002 at 06:36:45PM -0400, Shailabh Nagar wrote:
> > As of today, there is no scalable alternative to poll/select in the 2.5
> > kernel even though the topic has been discussed a number of times
> > before. The case for a scalable poll has been made often so I won't
> > get into that.
>
> Have you bothered addressing the fact that async poll scales worse than
> /dev/epoll? That was the original reason for dropping it.
Doesn't the F_SETSIG/F_SETOWN/SIGIO stuff qualify as a scalable
alternative?
It's in 2.5 as far as I know. It does suffer from using the signal
queue,
but it's in production use on servers that handle many thousands of
concurrent connections, so it's pretty scalable.
- Dan
next prev parent reply other threads:[~2002-10-15 16:55 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 [this message]
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
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3DAC4B0E.EBB3A2AB@kegel.com \
--to=dank@kegel.com \
--cc=akpm@digeo.com \
--cc=bcrl@redhat.com \
--cc=davem@redhat.com \
--cc=linux-aio@kvack.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nagar@watson.ibm.com \
--cc=sct@redhat.com \
--cc=torvalds@transmeta.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.