From: Andrea Arcangeli <andrea@suse.de>
To: Daniel Phillips <phillips@bonn-fries.net>
Cc: "Martin J. Bligh" <Martin.Bligh@us.ibm.com>,
William Lee Irwin III <wli@holomorphy.com>,
linux-kernel@vger.kernel.org
Subject: Re: Virtual address space exhaustion (was Discontigmem virt_to_page() )
Date: Fri, 3 May 2002 18:20:28 +0200 [thread overview]
Message-ID: <20020503182028.C14505@dualathlon.random> (raw)
In-Reply-To: <20020503103813.K11414@dualathlon.random> <4055279713.1020413842@[10.10.2.3]> <E173fVi-0002Ic-00@starship>
On Fri, May 03, 2002 at 06:02:18PM +0200, Daniel Phillips wrote:
> and solves 75% of the problem. It's not just ia32 numa that will benefit
> from it. For example, MIPS supports 16K pages in software, which will
the whole change would be specific to ia32, I don't see the connection
with mips. There would be nothing to share between ia32 2M pages and
mips 16K pages. You can do mips 16K just now indipendently from the
page_size of ia32. 16K should work without surprises because other archs
have pages of this size and even bigger. Nobody has pages large as much
as 2M yet, that's an order of magnitude bigger. 16K for example is just
fine for the read()/pagein/pageout I/O, DMA is usually done in larger
chunks anyways with readahead and async-flushing to be faster (but never
as big as 2M, the highest limit is 512k per scsi command).
Andrea
next prev parent reply other threads:[~2002-05-03 16:19 UTC|newest]
Thread overview: 165+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-26 18:27 Bug: Discontigmem virt_to_page() [Alpha,ARM,Mips64?] Russell King
2002-04-26 22:46 ` Andrea Arcangeli
2002-04-29 17:50 ` Martin J. Bligh
2002-04-29 22:00 ` Roman Zippel
2002-04-30 0:43 ` Andrea Arcangeli
2002-04-27 22:10 ` Daniel Phillips
2002-04-29 13:35 ` Andrea Arcangeli
2002-04-29 23:02 ` Daniel Phillips
2002-05-01 2:23 ` Andrea Arcangeli
2002-04-30 23:12 ` Daniel Phillips
2002-05-01 1:05 ` Daniel Phillips
2002-05-02 0:47 ` Andrea Arcangeli
2002-05-01 1:26 ` Daniel Phillips
2002-05-02 1:43 ` Andrea Arcangeli
2002-05-01 2:41 ` Daniel Phillips
2002-05-02 13:34 ` Andrea Arcangeli
2002-05-02 15:18 ` Martin J. Bligh
2002-05-02 15:35 ` Andrea Arcangeli
2002-05-01 15:42 ` Daniel Phillips
2002-05-02 16:06 ` Andrea Arcangeli
2002-05-02 16:10 ` Martin J. Bligh
2002-05-02 16:40 ` Andrea Arcangeli
2002-05-02 17:16 ` William Lee Irwin III
2002-05-02 18:41 ` Andrea Arcangeli
2002-05-02 19:19 ` William Lee Irwin III
2002-05-02 19:27 ` Daniel Phillips
2002-05-02 19:38 ` William Lee Irwin III
2002-05-02 19:58 ` Daniel Phillips
2002-05-03 6:28 ` Andrea Arcangeli
2002-05-03 6:10 ` Andrea Arcangeli
2002-05-02 22:20 ` Martin J. Bligh
2002-05-02 21:28 ` William Lee Irwin III
2002-05-02 21:52 ` Kurt Ferreira
2002-05-02 21:55 ` William Lee Irwin III
2002-05-03 6:38 ` Andrea Arcangeli
2002-05-03 6:58 ` Martin J. Bligh
2002-05-03 6:04 ` Andrea Arcangeli
2002-05-03 6:33 ` Martin J. Bligh
2002-05-03 8:38 ` Andrea Arcangeli
2002-05-03 9:26 ` William Lee Irwin III
2002-05-03 15:38 ` Martin J. Bligh
2002-05-03 15:17 ` Virtual address space exhaustion (was Discontigmem virt_to_page() ) Martin J. Bligh
2002-05-03 15:58 ` Andrea Arcangeli
2002-05-03 16:10 ` Martin J. Bligh
2002-05-03 16:25 ` Andrea Arcangeli
2002-05-03 16:02 ` Daniel Phillips
2002-05-03 16:20 ` Andrea Arcangeli [this message]
2002-05-03 16:41 ` Daniel Phillips
2002-05-03 16:58 ` Andrea Arcangeli
2002-05-03 18:08 ` Daniel Phillips
2002-05-03 9:24 ` Bug: Discontigmem virt_to_page() [Alpha,ARM,Mips64?] William Lee Irwin III
2002-05-03 10:30 ` Andrea Arcangeli
2002-05-03 11:09 ` William Lee Irwin III
2002-05-03 11:27 ` Andrea Arcangeli
2002-05-03 15:42 ` Martin J. Bligh
2002-05-03 15:32 ` Martin J. Bligh
2002-05-02 19:22 ` Daniel Phillips
2002-05-03 6:06 ` Andrea Arcangeli
2002-05-02 18:25 ` Daniel Phillips
2002-05-02 18:44 ` Andrea Arcangeli
2002-05-02 19:31 ` Martin J. Bligh
2002-05-02 18:57 ` Andrea Arcangeli
2002-05-02 19:08 ` Daniel Phillips
2002-05-03 5:15 ` Andrea Arcangeli
2002-05-05 23:54 ` Daniel Phillips
2002-05-06 0:28 ` Andrea Arcangeli
2002-05-06 0:34 ` Daniel Phillips
2002-05-06 1:01 ` Andrea Arcangeli
2002-05-06 0:55 ` Russell King
2002-05-06 1:07 ` Daniel Phillips
2002-05-06 1:20 ` Andrea Arcangeli
2002-05-06 1:24 ` Daniel Phillips
2002-05-06 1:42 ` Andrea Arcangeli
2002-05-06 1:48 ` Daniel Phillips
2002-05-06 2:06 ` Andrea Arcangeli
2002-05-06 17:40 ` Daniel Phillips
2002-05-06 19:09 ` Martin J. Bligh
2002-05-06 1:09 ` Andrea Arcangeli
2002-05-06 1:13 ` Daniel Phillips
2002-05-06 2:03 ` Daniel Phillips
2002-05-06 2:31 ` Andrea Arcangeli
2002-05-06 8:57 ` Russell King
2002-05-06 8:54 ` Roman Zippel
2002-05-06 15:26 ` Daniel Phillips
2002-05-06 19:07 ` Roman Zippel
2002-05-08 15:57 ` Daniel Phillips
2002-05-08 23:11 ` Roman Zippel
2002-05-09 16:08 ` Daniel Phillips
2002-05-09 22:06 ` Roman Zippel
2002-05-09 22:22 ` Daniel Phillips
2002-05-09 23:00 ` Roman Zippel
2002-05-09 23:22 ` Daniel Phillips
2002-05-10 0:13 ` Roman Zippel
2002-05-02 22:39 ` Martin J. Bligh
2002-05-03 7:04 ` Andrea Arcangeli
2002-05-02 23:42 ` Daniel Phillips
2002-05-03 7:45 ` Andrea Arcangeli
2002-05-02 16:07 ` Martin J. Bligh
2002-05-02 16:58 ` Gerrit Huizenga
2002-05-02 18:10 ` Andrea Arcangeli
2002-05-02 19:28 ` Gerrit Huizenga
2002-05-02 22:23 ` Martin J. Bligh
2002-05-03 6:20 ` Andrea Arcangeli
2002-05-03 6:39 ` Martin J. Bligh
2002-05-02 16:00 ` William Lee Irwin III
2002-05-02 2:37 ` William Lee Irwin III
2002-05-02 15:59 ` Andrea Arcangeli
2002-05-02 16:06 ` William Lee Irwin III
2002-05-01 18:05 ` Jesse Barnes
2002-05-01 23:17 ` Andrea Arcangeli
2002-05-01 23:23 ` discontiguous memory platforms Jesse Barnes
2002-05-02 0:51 ` Ralf Baechle
2002-05-02 1:27 ` Andrea Arcangeli
2002-05-02 1:32 ` Ralf Baechle
2002-05-02 8:50 ` Roman Zippel
2002-05-01 13:21 ` Daniel Phillips
2002-05-02 14:00 ` Roman Zippel
2002-05-01 14:08 ` Daniel Phillips
2002-05-02 17:56 ` Roman Zippel
2002-05-01 17:59 ` Daniel Phillips
2002-05-02 18:26 ` Roman Zippel
2002-05-02 18:32 ` Daniel Phillips
2002-05-02 19:40 ` Roman Zippel
2002-05-02 20:14 ` Daniel Phillips
2002-05-03 6:34 ` Andrea Arcangeli
2002-05-03 9:33 ` Roman Zippel
2002-05-03 6:30 ` Andrea Arcangeli
2002-05-02 18:35 ` Geert Uytterhoeven
2002-05-02 18:39 ` Daniel Phillips
2002-05-02 0:20 ` Bug: Discontigmem virt_to_page() [Alpha,ARM,Mips64?] Anton Blanchard
2002-05-01 1:35 ` Daniel Phillips
2002-05-02 1:45 ` William Lee Irwin III
2002-05-01 2:02 ` Daniel Phillips
2002-05-02 2:33 ` William Lee Irwin III
2002-05-01 2:44 ` Daniel Phillips
2002-05-02 1:46 ` Andrea Arcangeli
2002-05-01 1:56 ` Daniel Phillips
2002-05-02 1:01 ` Andrea Arcangeli
2002-05-02 15:28 ` Anton Blanchard
2002-05-01 16:10 ` Daniel Phillips
2002-05-02 15:59 ` Dave Engebretsen
2002-05-01 17:24 ` Daniel Phillips
2002-05-02 16:44 ` Dave Engebretsen
2002-05-02 16:31 ` William Lee Irwin III
2002-05-02 16:21 ` Dave Engebretsen
2002-05-02 17:28 ` William Lee Irwin III
2002-05-02 23:05 ` Daniel Phillips
2002-05-03 0:05 ` William Lee Irwin III
2002-05-03 1:19 ` Daniel Phillips
2002-05-03 19:47 ` Dave Engebretsen
2002-05-03 22:06 ` Daniel Phillips
2002-05-03 23:52 ` David Mosberger
-- strict thread matches above, loose matches on Subject: below --
2002-05-03 18:37 Virtual address space exhaustion (was Discontigmem virt_to_page() ) Tony Luck
2002-05-03 19:01 ` Richard B. Johnson
2002-04-27 1:15 ` Pavel Machek
2002-05-03 19:09 ` Christoph Hellwig
2002-05-03 19:17 ` Richard B. Johnson
2002-05-03 19:24 ` Christoph Hellwig
2002-05-03 19:38 ` Matti Aarnio
2002-05-03 19:50 ` Tony Luck
2002-05-03 20:22 ` Jeff Dike
2002-05-03 19:30 ` Richard B. Johnson
2002-05-03 22:35 ` Martin J. Bligh
2002-05-05 0:49 ` Denis Vlasenko
2002-05-05 17:59 ` Martin J. Bligh
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