From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Linus Torvalds <torvalds@transmeta.com>,
<linux-kernel@vger.kernel.org>
Subject: Re: please revert bogus patch to vmscan.c
Date: Tue, 30 Oct 2001 18:36:23 +0100 [thread overview]
Message-ID: <20011030173623.24069@smtp.adsl.oleane.com> (raw)
In-Reply-To: <20011030172352.16727@smtp.adsl.oleane.com>
In-Reply-To: <20011030172352.16727@smtp.adsl.oleane.com>
>Since we can't (AFAIK) have linux use larger PTEs (in which case we
>could store a pointer to the hash PTE in the linux PTE), We could
>instead layout an array of pointer (one for each page) that would
>hold these.
>
>That way, we have a fast way to grab the real accessed and dirty
>bits, which means we no longer need to flush hash pages when getting
>those bits and have a more realistic PAGE_ACCESSED (currently, any page
>in the hash has PAGE_ACCESSED).
Obviously, an array of pointer would be horrible bloat, maybe the
layout of a parallel page table (ARM does this I think) would make
more sense.
I don't know if it would be really an improvement however.
ben.
next prev parent reply other threads:[~2001-10-30 17:36 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-29 23:08 please revert bogus patch to vmscan.c Benjamin LaHaise
2001-10-29 23:14 ` David S. Miller
2001-10-29 23:15 ` Benjamin LaHaise
2001-10-29 23:25 ` Linus Torvalds
2001-10-29 23:33 ` Benjamin LaHaise
2001-10-29 23:36 ` David S. Miller
2001-10-29 23:39 ` Benjamin LaHaise
2001-10-29 23:41 ` Linus Torvalds
2001-10-29 23:48 ` Benjamin LaHaise
2001-10-29 23:50 ` David S. Miller
2001-10-29 23:51 ` Benjamin LaHaise
2001-10-29 23:55 ` David S. Miller
2001-10-29 23:57 ` Benjamin LaHaise
2001-10-30 0:01 ` David S. Miller
2001-10-30 0:05 ` Benjamin LaHaise
2001-10-29 23:58 ` Linus Torvalds
2001-10-30 1:31 ` Rik van Riel
2001-10-30 1:34 ` David S. Miller
2001-10-30 1:42 ` Linus Torvalds
2001-10-30 1:46 ` David S. Miller
2001-10-30 2:25 ` Benjamin LaHaise
2001-10-30 15:20 ` Andrea Arcangeli
2001-10-30 15:34 ` Rik van Riel
2001-10-30 15:51 ` Andrea Arcangeli
2001-10-30 16:34 ` Benjamin LaHaise
2001-10-30 17:00 ` Andrea Arcangeli
2001-10-30 17:07 ` Rik van Riel
2001-10-30 16:13 ` Giuliano Pochini
2001-10-30 16:54 ` Andrea Arcangeli
2001-10-30 17:23 ` Giuliano Pochini
2001-10-30 17:30 ` Andrea Arcangeli
2001-10-31 0:38 ` Paul Mackerras
[not found] ` <15327.8495.767553.389519@cargo.ozlabs.ibm.com>
2001-10-31 1:57 ` Andrea Arcangeli
2001-10-30 16:38 ` Linus Torvalds
2001-10-30 16:47 ` Benjamin LaHaise
2001-10-30 16:57 ` Victor Yodaiken
2001-10-30 17:16 ` Troy Benjegerdes
2001-10-30 17:17 ` Linus Torvalds
2001-10-30 17:51 ` Victor Yodaiken
2001-10-30 18:01 ` Cort Dougan
2001-10-30 21:39 ` Paul Mackerras
2001-10-30 22:36 ` Victor Yodaiken
2001-10-30 17:23 ` Benjamin Herrenschmidt
2001-10-30 17:36 ` Benjamin Herrenschmidt [this message]
2001-10-30 17:41 ` Linus Torvalds
2001-10-30 1:49 ` Benjamin LaHaise
2001-10-30 9:03 ` Alan Cox
2001-10-29 23:22 ` Linus Torvalds
2001-10-29 23:29 ` Benjamin LaHaise
2001-10-29 23:44 ` Linus Torvalds
2001-10-30 0:02 ` Hugh Dickins
2001-10-30 0:04 ` Linus Torvalds
2001-10-30 0:04 ` David S. Miller
2001-10-29 23:51 ` Paul Mackerras
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