From: "Stephen C. Tweedie" <sct@redhat.com>
To: bsuparna@in.ibm.com
Cc: Ben LaHaise <bcrl@redhat.com>,
"Stephen C. Tweedie" <sct@redhat.com>,
linux-kernel@vger.kernel.org,
kiobuf-io-devel@lists.sourceforge.net
Subject: Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound event wait /notify + callback chains
Date: Wed, 31 Jan 2001 23:32:52 +0000 [thread overview]
Message-ID: <20010131233252.I11607@redhat.com> (raw)
In-Reply-To: <CA2569E5.004D51A7.00@d73mta05.au.ibm.com>
In-Reply-To: <CA2569E5.004D51A7.00@d73mta05.au.ibm.com>; from bsuparna@in.ibm.com on Wed, Jan 31, 2001 at 07:28:01PM +0530
Hi,
On Wed, Jan 31, 2001 at 07:28:01PM +0530, bsuparna@in.ibm.com wrote:
>
> Do the following modifications to your wait queue extension sound
> reasonable ?
>
> 1. Change add_wait_queue to add elements to the end of queue (fifo, by
> default) and instead have an add_wait_queue_lifo() routine that adds to the
> head of the queue ?
Cache efficiency: you wake up the task whose data set is most likely
to be in L1 cache by waking it before its triggering event is flushed
from cache.
--Stephen
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next parent reply other threads:[~2001-01-31 23:35 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CA2569E5.004D51A7.00@d73mta05.au.ibm.com>
2001-01-31 23:32 ` Stephen C. Tweedie [this message]
2001-02-06 13:50 [Kiobuf-io-devel] RFC: Kernel mechanism: Compound event wait /notify + callback chains bsuparna
2001-02-06 14:07 ` Jens Axboe
[not found] <CA2569EA.00506BBC.00@d73mta05.au.ibm.com>
2001-02-05 15:01 ` Stephen C. Tweedie
-- strict thread matches above, loose matches on Subject: below --
2001-02-05 14:31 bsuparna
[not found] <CA2569E9.004A4E23.00@d73mta05.au.ibm.com>
2001-02-05 12:09 ` Stephen C. Tweedie
2001-02-04 13:24 bsuparna
2001-02-02 15:31 bsuparna
2001-02-01 14:44 bsuparna
2001-02-01 15:09 ` Christoph Hellwig
2001-02-01 16:08 ` Steve Lord
2001-02-01 16:49 ` Stephen C. Tweedie
2001-02-01 17:02 ` Christoph Hellwig
2001-02-01 17:34 ` Alan Cox
2001-02-01 17:49 ` Stephen C. Tweedie
2001-02-01 17:09 ` Chaitanya Tumuluri
2001-02-01 20:33 ` Christoph Hellwig
2001-02-01 20:56 ` Steve Lord
2001-02-01 20:59 ` Christoph Hellwig
2001-02-01 21:17 ` Steve Lord
2001-02-01 21:44 ` Stephen C. Tweedie
2001-02-01 22:07 ` Stephen C. Tweedie
2001-02-02 12:02 ` Christoph Hellwig
2001-02-05 12:19 ` Stephen C. Tweedie
2001-02-05 21:28 ` Ingo Molnar
2001-02-05 22:58 ` Stephen C. Tweedie
2001-02-05 23:06 ` Alan Cox
2001-02-05 23:16 ` Stephen C. Tweedie
2001-02-06 0:19 ` Manfred Spraul
2001-02-03 20:28 ` Linus Torvalds
2001-02-05 11:03 ` Stephen C. Tweedie
2001-02-05 12:00 ` Manfred Spraul
2001-02-05 15:03 ` Stephen C. Tweedie
2001-02-05 15:19 ` Alan Cox
2001-02-05 17:20 ` Stephen C. Tweedie
2001-02-05 17:29 ` Alan Cox
2001-02-05 18:49 ` Stephen C. Tweedie
2001-02-05 19:04 ` Alan Cox
2001-02-05 19:09 ` Linus Torvalds
2001-02-05 22:09 ` Ingo Molnar
2001-02-05 16:56 ` Linus Torvalds
2001-02-05 16:36 ` Linus Torvalds
2001-02-05 19:08 ` Stephen C. Tweedie
2001-02-01 17:49 ` Christoph Hellwig
2001-02-01 17:58 ` Alan Cox
2001-02-01 18:32 ` Rik van Riel
2001-02-01 18:59 ` yodaiken
2001-02-01 19:33 ` Stephen C. Tweedie
2001-02-01 18:51 ` bcrl
2001-02-01 16:16 ` Stephen C. Tweedie
2001-02-01 17:05 ` Christoph Hellwig
2001-02-01 17:09 ` Christoph Hellwig
2001-02-01 17:41 ` Stephen C. Tweedie
2001-02-01 18:14 ` Christoph Hellwig
2001-02-01 18:25 ` Alan Cox
2001-02-01 18:39 ` Rik van Riel
2001-02-01 18:48 ` Christoph Hellwig
2001-02-01 18:57 ` Alan Cox
2001-02-01 19:00 ` Christoph Hellwig
2001-02-01 19:32 ` Stephen C. Tweedie
2001-02-01 20:46 ` Christoph Hellwig
2001-02-01 21:25 ` Stephen C. Tweedie
2001-02-02 11:51 ` Christoph Hellwig
2001-02-02 14:04 ` Stephen C. Tweedie
2001-02-02 4:18 ` bcrl
2001-02-02 12:12 ` Christoph Hellwig
2001-02-01 20:04 ` Chaitanya Tumuluri
2001-02-01 13:20 bsuparna
2001-02-01 7:58 bsuparna
2001-02-01 12:39 ` Stephen C. Tweedie
2001-02-01 4:55 bsuparna
2001-02-01 12:19 ` Stephen C. Tweedie
2001-02-01 16:30 ` Chaitanya Tumuluri
2001-02-01 3:59 bsuparna
2001-01-31 13:58 bsuparna
2001-01-30 14:09 bsuparna
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