From: Christoph Lameter <cl@linux-foundation.org>
To: Martin Bligh <mbligh@google.com>
Cc: Chris Snook <csnook@redhat.com>,
Jeremy Fitzhardinge <jeremy@goop.org>,
Nick Piggin <nickpiggin@yahoo.com.au>,
Hugh Dickens <hugh@veritas.com>,
Linux Memory Management List <linux-mm@kvack.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Avi Kivity <avi@qumranet.com>,
Andrew Morton <akpm@linux-foundation.org>,
Rik van Riel <riel@redhat.com>
Subject: Re: Populating multiple ptes at fault time
Date: Thu, 18 Sep 2008 16:13:14 -0500 [thread overview]
Message-ID: <48D2C46A.5030702@linux-foundation.org> (raw)
In-Reply-To: <33307c790809181411j41a6fc4ev8560a13ed8661ec2@mail.gmail.com>
Martin Bligh wrote:
>>> Yup, basically you're assuming good locality of reference, but it turns
>>> out that (as davej would say) "userspace sucks".
>> Well, *most* userspace sucks. It might still be worthwhile to do this when
>> userspace is using madvise().
>
> Quite possibly true ... something to benchmark.
Well, I guess we need a new binary format that allows one to execute binaries
in kernel address space with full powers.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Lameter <cl@linux-foundation.org>
To: Martin Bligh <mbligh@google.com>
Cc: Chris Snook <csnook@redhat.com>,
Jeremy Fitzhardinge <jeremy@goop.org>,
Nick Piggin <nickpiggin@yahoo.com.au>,
Hugh Dickens <hugh@veritas.com>,
Linux Memory Management List <linux-mm@kvack.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Avi Kivity <avi@qumranet.com>,
Andrew Morton <akpm@linux-foundation.org>,
Rik van Riel <riel@redhat.com>
Subject: Re: Populating multiple ptes at fault time
Date: Thu, 18 Sep 2008 16:13:14 -0500 [thread overview]
Message-ID: <48D2C46A.5030702@linux-foundation.org> (raw)
In-Reply-To: <33307c790809181411j41a6fc4ev8560a13ed8661ec2@mail.gmail.com>
Martin Bligh wrote:
>>> Yup, basically you're assuming good locality of reference, but it turns
>>> out that (as davej would say) "userspace sucks".
>> Well, *most* userspace sucks. It might still be worthwhile to do this when
>> userspace is using madvise().
>
> Quite possibly true ... something to benchmark.
Well, I guess we need a new binary format that allows one to execute binaries
in kernel address space with full powers.
--
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next prev parent reply other threads:[~2008-09-18 21:14 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-17 17:47 Populating multiple ptes at fault time Jeremy Fitzhardinge
2008-09-17 17:47 ` Jeremy Fitzhardinge
2008-09-17 18:28 ` Rik van Riel
2008-09-17 18:28 ` Rik van Riel
2008-09-17 21:47 ` Jeremy Fitzhardinge
2008-09-17 21:47 ` Jeremy Fitzhardinge
2008-09-17 20:02 ` Chris Snook
2008-09-17 20:02 ` Chris Snook
2008-09-17 21:45 ` Jeremy Fitzhardinge
2008-09-17 21:45 ` Jeremy Fitzhardinge
2008-09-18 18:16 ` Christoph Lameter
2008-09-18 18:16 ` Christoph Lameter
2008-09-18 18:53 ` Jeremy Fitzhardinge
2008-09-18 18:53 ` Jeremy Fitzhardinge
2008-09-18 19:39 ` Christoph Lameter
2008-09-18 19:39 ` Christoph Lameter
2008-09-18 22:21 ` KOSAKI Motohiro
2008-09-18 22:21 ` KOSAKI Motohiro
2008-09-18 20:52 ` Martin Bligh
2008-09-18 20:52 ` Martin Bligh
2008-09-18 20:53 ` Chris Snook
2008-09-18 20:53 ` Chris Snook
2008-09-18 21:11 ` Martin Bligh
2008-09-18 21:11 ` Martin Bligh
2008-09-18 21:13 ` Christoph Lameter [this message]
2008-09-18 21:13 ` Christoph Lameter
2008-09-18 21:21 ` Martin Bligh
2008-09-18 21:21 ` Martin Bligh
2008-09-18 21:32 ` Christoph Lameter
2008-09-18 21:32 ` Christoph Lameter
2008-09-18 21:49 ` MinChan Kim
2008-09-18 21:49 ` MinChan Kim
2008-09-18 21:58 ` Christoph Lameter
2008-09-18 21:58 ` Christoph Lameter
2008-09-18 22:08 ` Martin Bligh
2008-09-18 22:08 ` Martin Bligh
2008-09-18 22:11 ` Christoph Lameter
2008-09-18 22:11 ` Christoph Lameter
2008-09-18 22:18 ` Martin Bligh
2008-09-18 22:18 ` Martin Bligh
2008-09-18 22:22 ` Jeremy Fitzhardinge
2008-09-18 22:22 ` Jeremy Fitzhardinge
2008-09-18 22:23 ` Chris Snook
2008-09-18 22:23 ` Chris Snook
2008-09-18 23:16 ` MinChan Kim
2008-09-18 23:16 ` MinChan Kim
2008-09-17 22:02 ` Avi Kivity
2008-09-17 22:02 ` Avi Kivity
2008-09-17 22:30 ` Jeremy Fitzhardinge
2008-09-17 22:30 ` Jeremy Fitzhardinge
2008-09-17 22:47 ` Avi Kivity
2008-09-17 22:47 ` Avi Kivity
2008-09-17 23:02 ` Jeremy Fitzhardinge
2008-09-17 23:02 ` Jeremy Fitzhardinge
2008-09-18 20:26 ` Avi Kivity
2008-09-18 20:26 ` Avi Kivity
2008-09-18 22:18 ` Jeremy Fitzhardinge
2008-09-18 22:18 ` Jeremy Fitzhardinge
2008-09-18 23:38 ` Avi Kivity
2008-09-18 23:38 ` Avi Kivity
2008-09-19 0:00 ` Jeremy Fitzhardinge
2008-09-19 0:00 ` Jeremy Fitzhardinge
2008-09-19 0:20 ` Avi Kivity
2008-09-19 0:20 ` Avi Kivity
2008-09-19 0:42 ` Jeremy Fitzhardinge
2008-09-19 0:42 ` Jeremy Fitzhardinge
2008-09-24 12:31 ` Avi Kivity
2008-09-24 12:31 ` Avi Kivity
2008-09-25 18:32 ` Jeremy Fitzhardinge
2008-09-25 18:32 ` Jeremy Fitzhardinge
2008-09-26 10:26 ` Martin Schwidefsky
2008-09-26 10:26 ` Martin Schwidefsky
2008-09-19 17:45 ` Benjamin Herrenschmidt
2008-09-19 17:45 ` Benjamin Herrenschmidt
2008-09-17 23:50 ` MinChan Kim
2008-09-17 23:50 ` MinChan Kim
2008-09-18 6:58 ` KOSAKI Motohiro
2008-09-18 6:58 ` KOSAKI Motohiro
2008-09-18 7:26 ` KAMEZAWA Hiroyuki
2008-09-18 7:26 ` KAMEZAWA Hiroyuki
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