From: Alex Tomas <bzzz@tmi.comex.ru>
To: wind@cocodriloo.com
Cc: Rik van Riel <riel@surriel.com>,
linux-kernel@vger.kernel.org, akpm@digeo.com
Subject: Re: 2.4 vm, program load, page faulting, ...
Date: 17 Mar 2003 19:50:04 +0300 [thread overview]
Message-ID: <m3hea2gcoz.fsf@lexa.home.net> (raw)
In-Reply-To: <20030317165223.GA11526@wind.cocodriloo.com>
>>>>> wind (w) writes:
w> On Mon, Mar 17, 2003 at 11:01:31AM -0500, Rik van Riel wrote:
>> On Mon, 17 Mar 2003, William Lee Irwin III wrote:
>> > On Sat, 15 Mar 2003, Paul Albrecht wrote:
>> > >> ... Why does the kernel page fault on text pages, present in
>> the page > >> cache, when a program starts? Couldn't the pte's for
>> text present in the > >> page cache be resolved when they're
>> mapped to memory?
>> >
w> You should ask Andrew about his patch to do exactly that: he
w> forced all PROC_EXEC mmaps to be nonlinear-mapped and this forced
w> all programs to suck entire binaries into memory... I recall he
w> saw at least 25% improvement at launching gnome.
they talked about pages _already present_ in pagecache.
next prev parent reply other threads:[~2003-03-17 16:47 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-16 4:59 2.4 vm, program load, page faulting, Paul Albrecht
2003-03-17 15:02 ` Rik van Riel
2003-03-17 15:10 ` William Lee Irwin III
2003-03-17 16:01 ` Rik van Riel
2003-03-17 16:52 ` wind
2003-03-17 16:50 ` Alex Tomas [this message]
2003-03-17 17:12 ` wind-lkml
2003-03-17 17:38 ` wind-lkml
2003-03-17 18:57 ` Marc-Christian Petersen
2003-03-17 19:06 ` wind-lkml
2003-03-17 19:34 ` wind
2003-03-17 22:05 ` Andrew Morton
2003-03-17 23:08 ` wind
2003-03-17 23:28 ` Andrew Morton
2003-03-18 0:12 ` wind
2003-03-17 16:37 ` Alex Tomas
2003-03-18 7:43 ` Paul Albrecht
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