From: Lutz Vieweg <lkv@isg.de>
To: Michael Clark <michael@metaparadigm.com>
Cc: Robin Holt <holt@sgi.com>, linux-kernel@vger.kernel.org
Subject: Re: How to find out which pages were copied-on-write?
Date: Mon, 12 Jul 2004 19:21:06 +0200 [thread overview]
Message-ID: <40F2C882.7070406@isg.de> (raw)
In-Reply-To: <40EFA4C8.1050409@metaparadigm.com>
Michael Clark wrote:
> HPAs library LPSM sounds like what you're looking for.
>
> http://freshmeat.net/projects/lpsm/
>
> Or you can do what you want the hard way using mprotect and a SEGV handler.
Certainly a valid idea to consider - doing all those things in userspace... so
thanks for the hint!
But wouldn't that introduce a significant overhead and undermine all of the
nice advantages the kernel might have in scheduling I/O operations?
However, I shall really consider and profile the mprotect/sighandler approach...
Regards,
Lutz Vieweg
PS: I'm using my own allocator already, so using the C-library implementation
wouldn't gain me much...
next prev parent reply other threads:[~2004-07-12 17:21 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-06 15:58 How to find out which pages were copied-on-write? Lutz Vieweg
2004-07-09 11:31 ` Robin Holt
2004-07-09 20:42 ` Lutz Vieweg
2004-07-10 8:11 ` Michael Clark
2004-07-12 17:21 ` Lutz Vieweg [this message]
2004-07-13 4:16 ` Michael Clark
2004-07-13 13:04 ` Lutz Vieweg
2004-07-13 15:02 ` Michael Clark
2004-07-13 15:39 ` Lutz Vieweg
2004-07-14 0:25 ` Michael Clark
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