From: bert hubert <ahu@ds9a.nl>
Cc: linux-mm@kvack.org
Subject: Re: http://ds9a.nl/cacheinfo project - please comment & improve
Date: Thu, 31 May 2001 23:53:27 +0200 [thread overview]
Message-ID: <20010531235326.A14566@home.ds9a.nl> (raw)
In-Reply-To: <20010531191729.E754@nightmaster.csn.tu-chemnitz.de>; from ingo.oeser@informatik.tu-chemnitz.de on Thu, May 31, 2001 at 07:17:30PM +0200
On Thu, May 31, 2001 at 07:17:30PM +0200, Ingo Oeser wrote:
> On Wed, May 30, 2001 at 11:48:06PM +0200, bert hubert wrote:
> > Oh, if anybody has ideas on statistics that should be exported, please let
> > me know. On the agenda is a bitmap that describes which pages are actually
> > in the cache.
>
> You mean sth. like the mincore() syscall?
If you first mmap() the file that would probably work. In dire need of a
manpage though - I'll whip one up and send it to Andries. Probably explains
its relative lack of popularity - I'd never heard of mincore() although it's
been around since BSD4.4 it appears.
Pretty sad that it wastes 7 bits per byte though, but standards conformance
is also useful.
Regards,
bert
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next prev parent reply other threads:[~2001-05-31 21:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-27 20:20 bert hubert
2001-05-30 19:54 ` Marcelo Tosatti
2001-05-30 21:48 ` bert hubert
2001-05-30 20:27 ` Marcelo Tosatti
2001-05-31 17:17 ` Ingo Oeser
2001-05-31 21:53 ` bert hubert [this message]
2001-06-03 17:04 ` bert hubert
2001-06-04 12:20 ` Hugh Dickins
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