From: Jeff Garzik <jeff@garzik.org>
To: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: David Miller <davem@davemloft.net>,
Ulrich Drepper <drepper@redhat.com>,
Andrew Morton <akpm@osdl.org>, netdev <netdev@vger.kernel.org>,
linux-kernel@vger.kernel.org, Linus Torvalds <torvalds@osdl.org>
Subject: Re: [take21 0/4] kevent: Generic event handling mechanism.
Date: Tue, 07 Nov 2006 07:32:20 -0500 [thread overview]
Message-ID: <45507CD4.5030600@garzik.org> (raw)
In-Reply-To: <20061107115111.GA13028@2ka.mipt.ru>
Evgeniy Polyakov wrote:
> Mmap ring buffer implementation was stopped by Andrew Morton and Ulrich
> Drepper, process' memory is used instead. copy_to_user() is slower (and
> some times noticebly), but there are major advantages of such approach.
hmmmm. I say there are advantages to both.
Perhaps create a "kevent_direct_limit" resource limit for each thread.
By default, each thread could mmap $n pinned pagecache pages. Sysadmin
can tune certain app resource limits to permit more.
I would think that retaining the option to avoid copy_to_user()
-somehow- in -some- cases would be wise.
Jeff
next prev parent reply other threads:[~2006-11-07 12:32 UTC|newest]
Thread overview: 214+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1154985aa0591036@2ka.mipt.ru>
2006-10-27 16:10 ` [take21 0/4] kevent: Generic event handling mechanism Evgeniy Polyakov
2006-10-27 16:10 ` [take21 1/4] kevent: Core files Evgeniy Polyakov
2006-10-27 16:10 ` [take21 2/4] kevent: poll/select() notifications Evgeniy Polyakov
2006-10-27 16:10 ` [take21 3/4] kevent: Socket notifications Evgeniy Polyakov
2006-10-27 16:10 ` [take21 4/4] kevent: Timer notifications Evgeniy Polyakov
2006-10-28 10:04 ` [take21 2/4] kevent: poll/select() notifications Eric Dumazet
2006-10-28 10:08 ` Evgeniy Polyakov
2006-10-28 10:28 ` [take21 1/4] kevent: Core files Eric Dumazet
2006-10-28 10:53 ` Evgeniy Polyakov
2006-10-28 12:36 ` Eric Dumazet
2006-10-28 13:03 ` Evgeniy Polyakov
2006-10-28 13:23 ` Eric Dumazet
2006-10-28 13:28 ` Evgeniy Polyakov
2006-10-28 13:34 ` Eric Dumazet
2006-10-28 13:47 ` Evgeniy Polyakov
2006-10-27 16:42 ` [take21 0/4] kevent: Generic event handling mechanism Evgeniy Polyakov
2006-11-07 11:26 ` Jeff Garzik
2006-11-07 11:46 ` Jeff Garzik
2006-11-07 11:58 ` Evgeniy Polyakov
2006-11-07 11:51 ` Evgeniy Polyakov
2006-11-07 12:17 ` Jeff Garzik
2006-11-07 12:29 ` Evgeniy Polyakov
2006-11-07 12:32 ` Jeff Garzik [this message]
2006-11-07 19:34 ` Andrew Morton
2006-11-07 20:52 ` David Miller
2006-11-07 21:38 ` Andrew Morton
2006-11-01 11:36 ` [take22 " Evgeniy Polyakov
2006-11-01 11:36 ` [take22 1/4] kevent: Core files Evgeniy Polyakov
2006-11-01 11:36 ` [take22 2/4] kevent: poll/select() notifications Evgeniy Polyakov
2006-11-01 11:36 ` [take22 3/4] kevent: Socket notifications Evgeniy Polyakov
2006-11-01 11:36 ` [take22 4/4] kevent: Timer notifications Evgeniy Polyakov
2006-11-01 13:06 ` [take22 0/4] kevent: Generic event handling mechanism Pavel Machek
2006-11-01 13:25 ` Evgeniy Polyakov
2006-11-01 16:05 ` Pavel Machek
2006-11-01 16:24 ` Evgeniy Polyakov
2006-11-01 18:13 ` Oleg Verych
2006-11-01 18:57 ` Evgeniy Polyakov
2006-11-02 2:12 ` Nate Diller
[not found] ` <aaf959cb0611011829k36deda6ahe61bcb9bf8e612e1@mail.gmail.com>
2006-11-02 2:30 ` zhou drangon
2006-11-02 7:46 ` Eric Dumazet
2006-11-02 8:01 ` Evgeniy Polyakov
2006-11-02 8:18 ` Eric Dumazet
2006-11-02 8:46 ` Evgeniy Polyakov
2006-11-02 11:33 ` Eric Dumazet
2006-11-06 21:17 ` Eric Dumazet
2006-11-07 8:32 ` Evgeniy Polyakov
2006-11-07 9:18 ` Evgeniy Polyakov
2006-11-07 12:09 ` Evgeniy Polyakov
2006-11-09 7:48 ` Evgeniy Polyakov
2006-11-03 2:42 ` zhou drangon
2006-11-03 9:16 ` Evgeniy Polyakov
2006-11-02 6:21 ` Evgeniy Polyakov
2006-11-02 19:40 ` Nate Diller
2006-11-03 8:42 ` Evgeniy Polyakov
2006-11-03 8:57 ` Pavel Machek
2006-11-03 9:04 ` David Miller
2006-11-07 12:05 ` Jeff Garzik
2006-11-03 9:13 ` Evgeniy Polyakov
2006-11-05 11:19 ` Pavel Machek
2006-11-05 11:43 ` Evgeniy Polyakov
2006-11-07 12:02 ` Jeff Garzik
2006-11-03 18:49 ` Oleg Verych
2006-11-04 10:24 ` Evgeniy Polyakov
2006-11-04 17:47 ` Evgeniy Polyakov
2006-11-01 16:07 ` James Morris
2006-11-07 16:50 ` [take23 0/5] " Evgeniy Polyakov
2006-11-07 16:50 ` [take23 1/5] kevent: Description Evgeniy Polyakov
2006-11-07 16:50 ` [take23 2/5] kevent: Core files Evgeniy Polyakov
2006-11-07 16:50 ` [take23 3/5] kevent: poll/select() notifications Evgeniy Polyakov
2006-11-07 16:50 ` [take23 4/5] kevent: Socket notifications Evgeniy Polyakov
2006-11-07 16:50 ` [take23 5/5] kevent: Timer notifications Evgeniy Polyakov
2006-11-07 22:53 ` [take23 3/5] kevent: poll/select() notifications Davide Libenzi
2006-11-08 8:45 ` Evgeniy Polyakov
2006-11-08 17:03 ` Evgeniy Polyakov
2006-11-07 22:16 ` [take23 2/5] kevent: Core files Andrew Morton
2006-11-08 8:24 ` Evgeniy Polyakov
2006-11-07 22:16 ` [take23 1/5] kevent: Description Andrew Morton
2006-11-08 8:23 ` Evgeniy Polyakov
2006-11-07 22:17 ` [take23 0/5] kevent: Generic event handling mechanism Andrew Morton
2006-11-08 8:21 ` Evgeniy Polyakov
2006-11-08 14:51 ` Eric Dumazet
2006-11-08 22:03 ` Andrew Morton
2006-11-08 22:44 ` Davide Libenzi
2006-11-08 23:07 ` Eric Dumazet
2006-11-08 23:56 ` Davide Libenzi
2006-11-09 7:24 ` Eric Dumazet
2006-11-09 7:52 ` Eric Dumazet
2006-11-09 17:12 ` Davide Libenzi
2006-11-09 8:23 ` [take24 0/6] " Evgeniy Polyakov
2006-11-09 8:23 ` [take24 1/6] kevent: Description Evgeniy Polyakov
2006-11-09 8:23 ` [take24 2/6] kevent: Core files Evgeniy Polyakov
2006-11-09 8:23 ` [take24 3/6] kevent: poll/select() notifications Evgeniy Polyakov
2006-11-09 8:23 ` [take24 4/6] kevent: Socket notifications Evgeniy Polyakov
2006-11-09 8:23 ` [take24 5/6] kevent: Timer notifications Evgeniy Polyakov
2006-11-09 8:23 ` [take24 6/6] kevent: Pipe notifications Evgeniy Polyakov
2006-11-09 9:08 ` [take24 3/6] kevent: poll/select() notifications Eric Dumazet
2006-11-09 9:29 ` Evgeniy Polyakov
2006-11-09 18:51 ` Davide Libenzi
2006-11-09 19:10 ` Evgeniy Polyakov
2006-11-09 19:42 ` Davide Libenzi
2006-11-09 20:10 ` Davide Libenzi
2006-11-11 17:36 ` [take24 7/6] kevent: signal notifications Evgeniy Polyakov
2006-11-11 22:28 ` [take24 0/6] kevent: Generic event handling mechanism Ulrich Drepper
2006-11-13 10:54 ` Evgeniy Polyakov
2006-11-13 11:16 ` Evgeniy Polyakov
2006-11-20 0:02 ` Ulrich Drepper
2006-11-20 8:25 ` Evgeniy Polyakov
2006-11-20 8:43 ` Andrew Morton
2006-11-20 8:51 ` Evgeniy Polyakov
2006-11-20 9:15 ` Andrew Morton
2006-11-20 9:19 ` Evgeniy Polyakov
2006-11-20 20:29 ` Ulrich Drepper
2006-11-20 21:46 ` Jeff Garzik
2006-11-20 21:52 ` Ulrich Drepper
2006-11-21 9:09 ` Ingo Oeser
2006-11-22 11:38 ` Michael Tokarev
2006-11-22 11:47 ` Evgeniy Polyakov
2006-11-22 12:33 ` Jeff Garzik
2006-11-21 9:53 ` Evgeniy Polyakov
2006-11-21 16:58 ` Ulrich Drepper
2006-11-21 17:43 ` Evgeniy Polyakov
2006-11-21 18:46 ` Evgeniy Polyakov
2006-11-21 20:01 ` Jeff Garzik
2006-11-22 10:41 ` Evgeniy Polyakov
2006-11-21 20:19 ` Jeff Garzik
2006-11-22 10:39 ` Evgeniy Polyakov
2006-11-22 7:38 ` Ulrich Drepper
2006-11-22 10:44 ` Evgeniy Polyakov
2006-11-22 21:02 ` Ulrich Drepper
2006-11-23 12:23 ` Evgeniy Polyakov
2006-11-23 8:52 ` Kevent POSIX timers support Evgeniy Polyakov
2006-11-23 20:26 ` Ulrich Drepper
2006-11-24 9:50 ` Evgeniy Polyakov
2006-11-27 18:20 ` Ulrich Drepper
2006-11-27 18:24 ` David Miller
2006-11-27 18:36 ` Ulrich Drepper
2006-11-27 18:49 ` David Miller
2006-11-28 9:16 ` Evgeniy Polyakov
2006-11-28 19:13 ` David Miller
2006-11-28 19:22 ` Evgeniy Polyakov
2006-12-12 1:36 ` David Miller
2006-12-12 5:31 ` Evgeniy Polyakov
2006-11-28 9:16 ` Evgeniy Polyakov
2006-12-13 13:21 ` Tushar Adeshara
2006-12-13 13:27 ` Evgeniy Polyakov
2006-11-22 7:33 ` [take24 0/6] kevent: Generic event handling mechanism Ulrich Drepper
2006-11-22 10:38 ` Evgeniy Polyakov
2006-11-22 22:22 ` Ulrich Drepper
2006-11-23 12:18 ` Evgeniy Polyakov
2006-11-23 22:23 ` Ulrich Drepper
2006-11-24 10:57 ` Evgeniy Polyakov
2006-11-27 19:12 ` Ulrich Drepper
2006-11-28 11:00 ` Evgeniy Polyakov
2006-11-22 12:09 ` Evgeniy Polyakov
2006-11-22 12:15 ` Evgeniy Polyakov
2006-11-22 13:46 ` Evgeniy Polyakov
2006-11-22 22:24 ` Ulrich Drepper
2006-11-23 12:22 ` Evgeniy Polyakov
2006-11-23 20:34 ` Ulrich Drepper
2006-11-24 10:58 ` Evgeniy Polyakov
2006-11-27 18:23 ` Ulrich Drepper
2006-11-28 10:13 ` Evgeniy Polyakov
2006-12-27 20:45 ` Ulrich Drepper
2006-12-28 9:50 ` Evgeniy Polyakov
2006-11-21 16:29 ` [take25 " Evgeniy Polyakov
2006-11-21 16:29 ` [take25 1/6] kevent: Description Evgeniy Polyakov
2006-11-21 16:29 ` [take25 2/6] kevent: Core files Evgeniy Polyakov
2006-11-21 16:29 ` [take25 3/6] kevent: poll/select() notifications Evgeniy Polyakov
2006-11-21 16:29 ` [take25 4/6] kevent: Socket notifications Evgeniy Polyakov
2006-11-21 16:29 ` [take25 5/6] kevent: Timer notifications Evgeniy Polyakov
2006-11-21 16:29 ` [take25 6/6] kevent: Pipe notifications Evgeniy Polyakov
2006-11-22 11:20 ` Eric Dumazet
2006-11-22 11:30 ` Evgeniy Polyakov
2006-11-22 23:46 ` [take25 1/6] kevent: Description Ulrich Drepper
2006-11-23 11:52 ` Evgeniy Polyakov
2006-11-23 19:45 ` Ulrich Drepper
2006-11-24 11:01 ` Evgeniy Polyakov
2006-11-24 16:06 ` Ulrich Drepper
2006-11-24 16:14 ` Evgeniy Polyakov
2006-11-24 16:31 ` Evgeniy Polyakov
2006-11-27 19:20 ` Ulrich Drepper
2006-11-22 23:52 ` Ulrich Drepper
2006-11-23 11:55 ` Evgeniy Polyakov
2006-11-23 20:00 ` Ulrich Drepper
2006-11-23 21:49 ` Hans Henrik Happe
2006-11-23 22:34 ` Ulrich Drepper
2006-11-24 11:50 ` Evgeniy Polyakov
2006-11-24 16:17 ` Ulrich Drepper
2006-11-24 11:46 ` Evgeniy Polyakov
2006-11-24 16:30 ` Ulrich Drepper
2006-11-24 16:49 ` Evgeniy Polyakov
2006-11-27 19:23 ` Ulrich Drepper
2006-11-23 22:33 ` Ulrich Drepper
2006-11-23 22:48 ` Jeff Garzik
2006-11-23 23:45 ` Ulrich Drepper
2006-11-24 0:48 ` Eric Dumazet
2006-11-24 8:14 ` Andrew Morton
2006-11-24 8:33 ` Eric Dumazet
2006-11-24 15:26 ` Ulrich Drepper
2006-11-24 13:07 ` Miquel van Smoorenburg
2006-11-24 0:14 ` Hans Henrik Happe
2006-11-24 12:05 ` Evgeniy Polyakov
2006-11-24 12:13 ` Evgeniy Polyakov
2006-11-27 19:43 ` Ulrich Drepper
2006-11-28 10:26 ` Evgeniy Polyakov
2006-11-30 19:14 ` [take26 0/8] kevent: Generic event handling mechanism Evgeniy Polyakov
2006-11-30 19:14 ` [take26 1/8] kevent: Description Evgeniy Polyakov
2006-11-30 19:14 ` [take26 2/8] kevent: Core files Evgeniy Polyakov
2006-11-30 19:14 ` [take26 3/8] kevent: poll/select() notifications Evgeniy Polyakov
2006-11-30 19:14 ` [take26 4/8] kevent: Socket notifications Evgeniy Polyakov
2006-11-30 19:14 ` [take26 5/8] kevent: Timer notifications Evgeniy Polyakov
2006-11-30 19:14 ` [take26 6/8] kevent: Pipe notifications Evgeniy Polyakov
2006-11-30 19:14 ` [take26 7/8] kevent: Signal notifications Evgeniy Polyakov
2006-11-30 19:14 ` [take26 8/8] kevent: Kevent posix timer notifications Evgeniy Polyakov
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