From: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
To: jamal <hadi@cyberus.ca>
Cc: Jeff Garzik <jeff@garzik.org>,
linux-kernel@vger.kernel.org, David Miller <davem@davemloft.net>,
Ulrich Drepper <drepper@redhat.com>,
Andrew Morton <akpm@osdl.org>, netdev <netdev@vger.kernel.org>,
Zach Brown <zach.brown@oracle.com>,
Christoph Hellwig <hch@infradead.org>,
Chase Venters <chase.venters@clientec.com>,
Johann Borck <johann.borck@densedata.com>
Subject: Re: [take28-resend_1->0 0/8] kevent: Generic event handling mechanism.
Date: Thu, 21 Dec 2006 19:51:43 +0300 [thread overview]
Message-ID: <20061221165143.GA322@2ka.mipt.ru> (raw)
In-Reply-To: <1166719324.3863.1.camel@localhost>
On Thu, Dec 21, 2006 at 11:42:04AM -0500, jamal (hadi@cyberus.ca) wrote:
> > > > Things like sockets/pipes can only benefit from direct kevent usage
> > > > instead of ->poll() and wrappers.
> > >
> > > You should be able change it to use those schemes when it detects
> > > that the kernel supports them.
> >
> > I.e. stat() for each new file descriptor - note, that _you_ asked it :)
>
> Didnt follow. Is there some issue with libevent you mean?
libevent provides file descriptor without any additional info about it -
so when it is added into the waiting subsystem, userspace must select
different usage cases (i.e. different kevent notifications for different
types of file descriptor - socket notifications for sockets and pipes,
poll/select for all others), this requires stat() call per provided file
descriptor.
Event addition/waiting itself is the same - only parameters (type and
requested event) are changed.
> cheers,
> jamal
--
Evgeniy Polyakov
next prev parent reply other threads:[~2006-12-21 16:53 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3154985aa0591036@2ka.mipt.ru>
2006-12-17 13:53 ` [take28-resend_2->0 0/8] kevent: Generic event handling mechanism Evgeniy Polyakov
2006-12-17 13:53 ` [take28-resend_2->0 1/8] kevent: Description Evgeniy Polyakov
2006-12-17 13:53 ` [take28-resend_2->0 2/8] kevent: Core files Evgeniy Polyakov
2006-12-17 13:53 ` [take28-resend_2->0 3/8] kevent: poll/select() notifications Evgeniy Polyakov
2006-12-17 13:53 ` [take28-resend_2->0 4/8] kevent: Socket notifications Evgeniy Polyakov
2006-12-17 13:53 ` [take28-resend_2->0 5/8] kevent: Timer notifications Evgeniy Polyakov
2006-12-17 13:53 ` [take28-resend_2->0 6/8] kevent: Pipe notifications Evgeniy Polyakov
2006-12-17 13:53 ` [take28-resend_2->0 7/8] kevent: Signal notifications Evgeniy Polyakov
2006-12-17 13:53 ` [take28-resend_2->0 8/8] kevent: Kevent posix timer notifications Evgeniy Polyakov
2006-12-21 9:14 ` [take28-resend_1->0 0/8] kevent: Generic event handling mechanism Evgeniy Polyakov
2006-12-21 9:14 ` [take28-resend_1->0 1/8] kevent: Description Evgeniy Polyakov
2006-12-21 9:14 ` [take28-resend_1->0 2/8] kevent: Core files Evgeniy Polyakov
2006-12-21 9:14 ` [take28-resend_1->0 3/8] kevent: poll/select() notifications Evgeniy Polyakov
2006-12-21 9:14 ` [take28-resend_1->0 4/8] kevent: Socket notifications Evgeniy Polyakov
2006-12-21 9:14 ` [take28-resend_1->0 5/8] kevent: Timer notifications Evgeniy Polyakov
2006-12-21 9:14 ` [take28-resend_1->0 6/8] kevent: Pipe notifications Evgeniy Polyakov
2006-12-21 9:14 ` [take28-resend_1->0 7/8] kevent: Signal notifications Evgeniy Polyakov
2006-12-21 9:14 ` [take28-resend_1->0 8/8] kevent: Kevent posix timer notifications Evgeniy Polyakov
2006-12-21 10:35 ` [take28-resend_1->0 0/8] kevent: Generic event handling mechanism Evgeniy Polyakov
2006-12-21 10:41 ` Jeff Garzik
2006-12-21 10:49 ` Evgeniy Polyakov
2006-12-21 10:57 ` Evgeniy Polyakov
2006-12-21 13:48 ` jamal
2006-12-21 14:04 ` Evgeniy Polyakov
2006-12-21 14:21 ` jamal
2006-12-21 14:23 ` Evgeniy Polyakov
2006-12-21 14:36 ` Evgeniy Polyakov
2006-12-21 14:40 ` jamal
2006-12-21 14:46 ` Evgeniy Polyakov
2006-12-21 16:42 ` jamal
2006-12-21 16:51 ` Evgeniy Polyakov [this message]
2006-12-23 16:51 ` [take29 " Evgeniy Polyakov
2006-12-23 16:51 ` [take29 1/8] kevent: Description Evgeniy Polyakov
2006-12-23 16:51 ` [take29 2/8] kevent: Core files Evgeniy Polyakov
2006-12-23 16:51 ` [take29 3/8] kevent: poll/select() notifications Evgeniy Polyakov
2006-12-23 16:51 ` [take29 4/8] kevent: Socket notifications Evgeniy Polyakov
2006-12-23 16:51 ` [take29 5/8] kevent: Timer notifications Evgeniy Polyakov
2006-12-23 16:51 ` [take29 6/8] kevent: Pipe notifications Evgeniy Polyakov
2006-12-23 16:51 ` [take29 7/8] kevent: Signal notifications Evgeniy Polyakov
2006-12-23 16:51 ` [take29 8/8] kevent: Kevent posix timer notifications Evgeniy Polyakov
2006-12-23 17:10 ` [take29 0/8] kevent: Generic event handling mechanism Evgeniy Polyakov
2006-12-28 15:56 ` Ingo Molnar
2006-12-29 8:48 ` Evgeniy Polyakov
2006-12-28 16:01 ` Ingo Molnar
2006-12-29 8:55 ` Evgeniy Polyakov
2006-12-29 12:54 ` Ingo Molnar
2006-12-29 13:14 ` Evgeniy Polyakov
2006-12-29 13:24 ` Ingo Molnar
2006-12-29 12:25 ` [take30 0/9] " Evgeniy Polyakov
2006-12-29 12:25 ` [take30 1/9] kevent: Description Evgeniy Polyakov
2006-12-29 12:25 ` [take30 2/9] kevent: Core files Evgeniy Polyakov
2006-12-29 12:25 ` [take30 3/9] kevent: poll/select() notifications Evgeniy Polyakov
2006-12-29 12:25 ` [take30 4/9] kevent: Socket notifications Evgeniy Polyakov
2006-12-29 12:25 ` [take30 5/9] kevent: Timer notifications Evgeniy Polyakov
2006-12-29 12:25 ` [take30 6/9] kevent: Pipe notifications Evgeniy Polyakov
2006-12-29 12:25 ` [take30 7/9] kevent: Signal notifications Evgeniy Polyakov
2006-12-29 12:25 ` [take30 8/9] kevent: Kevent posix timer notifications Evgeniy Polyakov
2006-12-29 12:25 ` [take30 9/9] kevent: Private userspace notifications Evgeniy Polyakov
2007-01-08 19:25 ` [take31 0/10] kevent: Generic event handling mechanism Evgeniy Polyakov
2007-01-08 19:25 ` [take31 1/10] kevent: Description Evgeniy Polyakov
2007-01-08 19:25 ` [take31 2/10] kevent: Core files Evgeniy Polyakov
2007-01-08 19:25 ` [take31 3/10] kevent: poll/select() notifications Evgeniy Polyakov
2007-01-08 19:25 ` [take31 4/10] kevent: Socket notifications Evgeniy Polyakov
2007-01-08 19:25 ` [take31 5/10] kevent: Timer notifications Evgeniy Polyakov
2007-01-08 19:25 ` [take31 6/10] kevent: Pipe notifications Evgeniy Polyakov
2007-01-08 19:25 ` [take31 7/10] kevent: Signal notifications Evgeniy Polyakov
2007-01-08 19:26 ` [take31 8/10] kevent: Kevent posix timer notifications Evgeniy Polyakov
2007-01-08 19:26 ` [take31 9/10] kevent: Private userspace notifications Evgeniy Polyakov
2007-01-08 19:26 ` [take31 10/10] kevent: Kevent based AIO (aio_sendfile()) Evgeniy Polyakov
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