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From: William Lee Irwin III <wli@holomorphy.com>
To: Andrea Arcangeli <andrea@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>, linux-kernel@vger.kernel.org
Subject: Re: 2.4.22pre6aa1
Date: Fri, 18 Jul 2003 16:04:31 -0700	[thread overview]
Message-ID: <20030718230431.GQ15452@holomorphy.com> (raw)
In-Reply-To: <20030718225328.GQ3928@dualathlon.random>

On Sat, Jul 19, 2003 at 12:53:28AM +0200, Andrea Arcangeli wrote:
> I tend to think the creation/destruction will be the most noticeable
> performance difference in practice. allocating 42G in a single block
> will take a bit of time ;). I'm not necessairly worse or unacceptable,
> but it's different. And I feel I've to retain the bigpages= API (as an
> API not as in implementation) anyways. Furthmore I'm unsure if hugtlbfs
> is relaxed like the shm-largpeage patch is, I mean, it should be
> possible to mmap the stuff with 4k granularty too, or stuff could break
> due that change of API too.

I've just not gotten feedback about creation and destruction; I get the
impression it's an uncommon operation.

The alignment etc. considerations are bits I probably can't get merged. =(

Most of the work I did was trying to get the preexisting semantics into
more standard-looking API's, e.g. vfs ops and standard-ish sysv shm.


-- wli

  reply	other threads:[~2003-07-18 22:48 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-17 10:28 2.4.22pre6aa1 Andrea Arcangeli
2003-07-17 10:42 ` 2.4.22pre6aa1 ooyama eiichi
2003-07-17 10:52   ` 2.4.22pre6aa1 Marc-Christian Petersen
2003-07-17 10:53   ` 2.4.22pre6aa1 ooyama eiichi
2003-07-17 15:42 ` 2.4.22pre6aa1 Dave Jones
2003-07-17 20:31   ` 2.4.22pre6aa1 Andrea Arcangeli
2003-07-17 22:13 ` 2.4.22pre6aa1 Marc-Christian Petersen
2003-07-17 22:26   ` 2.4.22pre6aa1 Andrea Arcangeli
2003-07-17 22:27   ` 2.4.22pre6aa1 Mike Fedyk
2003-07-17 22:32     ` 2.4.22pre6aa1 Marc-Christian Petersen
2003-07-17 22:30   ` 2.4.22pre6aa1 Marc-Christian Petersen
2003-07-17 22:50     ` 2.4.22pre6aa1 Andrea Arcangeli
2003-07-18  0:30       ` 2.4.22pre6aa1 Chris Mason
2003-07-22 12:28         ` 2.4.22pre6aa1 Marc-Christian Petersen
2003-07-22 14:04           ` 2.4.22pre6aa1 Andrea Arcangeli
2003-07-18  5:47       ` 2.4.22pre6aa1 Andrea Arcangeli
2003-07-22 13:34       ` 2.4.22pre6aa1 Marc-Christian Petersen
2003-07-22 13:59         ` 2.4.22pre6aa1 Andrea Arcangeli
2003-07-24 12:27           ` 2.4.22pre6aa1 Marc-Christian Petersen
2003-07-24 14:14             ` 2.4.22pre6aa1 Chris Mason
2003-07-18 18:18 ` 2.4.22pre6aa1 Christoph Hellwig
2003-07-18 22:27   ` 2.4.22pre6aa1 Andrea Arcangeli
2003-07-18 22:48     ` 2.4.22pre6aa1 William Lee Irwin III
2003-07-18 22:53       ` 2.4.22pre6aa1 Andrea Arcangeli
2003-07-18 23:04         ` William Lee Irwin III [this message]
2003-07-18 23:12           ` 2.4.22pre6aa1 Andrea Arcangeli
2003-07-18 23:53             ` 2.4.22pre6aa1 William Lee Irwin III
2003-07-19  0:04               ` 2.4.22pre6aa1 Andrea Arcangeli
2003-07-23 11:21 2.4.22pre6aa1 Sergey S. Kostyliov
2003-07-25  5:28 ` 2.4.22pre6aa1 Andrea Arcangeli
2003-07-25 11:10   ` 2.4.22pre6aa1 Sergey S. Kostyliov
2003-07-25 19:02     ` 2.4.22pre6aa1 Andrea Arcangeli
2003-08-03 17:12       ` 2.4.22pre6aa1 Sergey S. Kostyliov
2003-08-16 11:56         ` 2.4.22pre6aa1 Andrea Arcangeli
2003-08-16 13:54           ` 2.4.22pre6aa1 Hugh Dickins
2003-08-16 14:00             ` 2.4.22pre6aa1 Hugh Dickins
2003-08-16 14:50               ` 2.4.22pre6aa1 Sergey S. Kostyliov

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