From: Paul Mackerras <paulus@samba.org>
To: Andrea Arcangeli <andrea@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: RFC: CONFIG_PAGE_SHIFT (aka software PAGE_SIZE)
Date: Sat, 7 Jul 2007 17:01:57 +1000 [thread overview]
Message-ID: <18063.14949.850984.791608@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <20070706222651.GG5777@v2.random>
Andrea Arcangeli writes:
> So my whole idea is to once and for all to decuple the size of the
> pte-entry (4k on x86/amd64) with the page allocator granularity. The
> HARD_PAGE_SHIFT will be 4k still, the common code PAGE_SIZE will be
> variable and configurable at compile time with CONFIG_PAGE_SHIFT.
How does the page cache work with your scheme? For example if I have
1000 1kB files cached in the page cache, and 16k PAGE_SIZE, does that
use up 4M, or 16M?
Paul.
next prev parent reply other threads:[~2007-07-07 7:02 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-06 22:26 Andrea Arcangeli
2007-07-06 23:33 ` Dave Hansen
2007-07-06 23:52 ` Andrea Arcangeli
2007-07-17 17:47 ` William Lee Irwin III
2007-07-17 19:33 ` Andrea Arcangeli
2007-07-18 13:32 ` William Lee Irwin III
2007-07-18 16:34 ` Rene Herman
2007-07-18 23:50 ` Andrea Arcangeli
2007-07-19 0:53 ` Rene Herman
2007-07-24 19:44 ` Andrea Arcangeli
2007-07-25 3:20 ` William Lee Irwin III
2007-07-25 14:39 ` Andrea Arcangeli
2007-07-25 17:56 ` William Lee Irwin III
2007-07-07 1:36 ` Badari Pulavarty
2007-07-07 1:47 ` Badari Pulavarty
2007-07-07 10:12 ` Andrea Arcangeli
2007-07-07 7:01 ` Paul Mackerras [this message]
2007-07-07 10:25 ` Andrea Arcangeli
2007-07-07 18:53 ` Jan Engelhardt
2007-07-07 20:34 ` Rik van Riel
2007-07-08 9:52 ` Andrea Arcangeli
2007-07-08 23:20 ` David Chinner
2007-07-10 10:11 ` Andrea Arcangeli
2007-07-12 0:12 ` David Chinner
2007-07-12 11:14 ` Andrea Arcangeli
2007-07-12 14:44 ` David Chinner
2007-07-12 16:31 ` Andrea Arcangeli
2007-07-12 16:34 ` Dave Hansen
2007-07-13 7:13 ` David Chinner
2007-07-13 14:08 ` Dave Kleikamp
2007-07-13 14:31 ` Andrea Arcangeli
2007-07-16 0:27 ` David Chinner
2007-07-12 17:53 ` Matt Mackall
2007-07-13 1:06 ` Andrea Arcangeli
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