From: "Randy.Dunlap" <rddunlap@osdl.org>
To: Adam Hunt <kinema@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: I/O scheduler recomendation for Linux as a VMware guest
Date: Wed, 20 Oct 2004 19:48:29 -0700 [thread overview]
Message-ID: <4177237D.8070502@osdl.org> (raw)
In-Reply-To: <b476569a0410201616415b0600@mail.gmail.com>
Adam Hunt wrote:
> I am forced to spend quite a bit of time with my only relatively
> powerful workstation booted into XP so I can do CAD work
> (unfortunately Autodesk's Inventor only runs on Windows). Because of
> this unfortunate situation I am planning my first attempt to get the
> Linux install that I have on the other drive in this workstation to
> boot using VMware. VMware has the ability to access raw disk
> partitions (as apposed to partitions stored in a file on a host
> partition) so I figure with some init and /etc magic I should be able
> to boot the system using VMware and when I am not drawing in Inventor
> I should be able to reboot and run Linux natively directly on the
> hardware.
>
> What I am wondering is what I/O scheduler should I be using when the
> system is running within a VMware instance? I figure that Windows
> will be scheduling the access to the physical hardware so I would
> assume that I want a bare bones priority based scheduler, something
> with the lowest possible overhead. Is this correct? If so, what
> would that scheduler be?
>
> IIRC someone (Ingo?) was working on the ability to change schedules
> during runtime. How has that work progressed? Is it available in any
> kernel trees?
It was Jens Axboe.
It was merged _after_ 2.6.9, so it's currently available in
2.6.9-bkN. See this BK changeset (and the lwn.net article that
is referred to there):
http://linux.bkbits.net:8080/linux-2.5/cset@41752c48DmUvWjzNzOcvM8RlMCIF4A?nav=index.html|ChangeSet@-4w
--
~Randy
next prev parent reply other threads:[~2004-10-21 3:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-20 23:16 I/O scheduler recomendation for Linux as a VMware guest Adam Hunt
2004-10-21 2:48 ` Randy.Dunlap [this message]
2004-10-21 8:31 ` Jens Axboe
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