From: William Lee Irwin III <wli@holomorphy.com>
To: Andrew Morton <akpm@zip.com.au>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [BK PATCH 2.5] Introduce 64-bit versions of PAGE_{CACHE_,}{MASK,ALIGN}
Date: Sun, 28 Jul 2002 17:56:49 -0700 [thread overview]
Message-ID: <20020729005649.GT25038@holomorphy.com> (raw)
In-Reply-To: <3D448808.CF8D18BA@zip.com.au>
On Sun, Jul 28, 2002 at 05:10:48PM -0700, Andrew Morton wrote:
> - Few pages use ->private for much. Hash for it. 4(ish) bytes
> saved.
Do you know an approximate reasonable constant of proportionality
for how many pages have ->private attached?
On Sun, Jul 28, 2002 at 05:10:48PM -0700, Andrew Morton wrote:
> - Remove the rmap chain (I just broke ptep_to_address() anyway). 4 bytes
> saved. struct page is now 20 bytes.
How did ptep_to_address() break? I browsed over your latest changes and
missed the bit where that fell apart. I'll at least take a stab at fixing
it up until the other bits materialize.
Cheers,
Bill
next prev parent reply other threads:[~2002-07-29 0:53 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-27 13:41 [BK PATCH 2.5] Introduce 64-bit versions of PAGE_{CACHE_,}{MASK,ALIGN} Anton Altaparmakov
2002-07-27 17:23 ` Andrew Morton
2002-07-28 17:53 ` Eric W. Biederman
2002-07-28 18:54 ` Anton Altaparmakov
2002-07-28 20:12 ` Eric W. Biederman
2002-07-28 23:26 ` Linus Torvalds
2002-07-29 0:10 ` Andrew Morton
2002-07-29 0:43 ` William Lee Irwin III
2002-07-29 0:56 ` Andrea Arcangeli
2002-07-29 1:04 ` William Lee Irwin III
2002-07-29 1:09 ` Rik van Riel
2002-07-29 2:14 ` Andrew Morton
2002-07-29 2:11 ` William Lee Irwin III
2002-07-29 2:18 ` Rik van Riel
2002-07-29 0:49 ` Andrea Arcangeli
2002-07-29 2:05 ` Andrew Morton
2002-07-29 2:09 ` William Lee Irwin III
2002-07-29 20:52 ` Andrea Arcangeli
2002-07-29 21:01 ` Andrew Morton
2002-07-29 21:31 ` Andrea Arcangeli
2002-07-29 21:46 ` Andrew Morton
2002-07-29 22:18 ` Andrea Arcangeli
2002-07-29 0:56 ` William Lee Irwin III [this message]
2002-07-29 1:36 ` Andrew Morton
2002-07-29 1:37 ` William Lee Irwin III
2002-07-29 9:27 ` Russell King
2002-07-29 18:32 ` Andrew Morton
[not found] <5.1.0.14.2.20020728193528.04336a80@pop.cus.cam.ac.uk.suse.lists.linux.kernel>
[not found] ` <Pine.LNX.4.44.0207281622350.8208-100000@home.transmeta.com.suse.lists.linux.kernel>
[not found] ` <3D448808.CF8D18BA@zip.com.au.suse.lists.linux.kernel>
[not found] ` <20020729004942.GL1201@dualathlon.random.suse.lists.linux.kernel>
[not found] ` <3D44A2DF.F751B564@zip.com.au.suse.lists.linux.kernel>
[not found] ` <20020729205211.GB1201@dualathlon.random.suse.lists.linux.kernel>
2002-07-30 13:44 ` Andi Kleen
2002-07-30 14:06 ` Rik van Riel
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