From: Bill Davidsen <davidsen@tmr.com>
To: Linux RAID <linux-raid@vger.kernel.org>
Subject: Disk characteristics for virtual machines
Date: Fri, 13 Mar 2009 12:51:58 -0400 [thread overview]
Message-ID: <49BA8F2E.9030704@tmr.com> (raw)
Justin (jpiszcz@lucidpixels.com) was discussing the ioscheduler for SSD,
and I was thinking about that in terms of virtual machines, since I run
a lot of small servers using KVM. So I added a short script to my
rc.local, to use the "noop" scheduler for any drive with model QEMU* so
that the underlying host scheduling can work without anything competing.
I was wondering if that should also apply to the "rotational" feature
added in 2.6.29, since these "devices" are backed by files.
Ref:
<alpine.DEB.1.10.0902190837270.19552@p34.internal.lan>
--
Bill Davidsen <davidsen@tmr.com>
"Woe unto the statesman who makes war without a reason that will still
be valid when the war is over..." Otto von Bismark
reply other threads:[~2009-03-13 16:51 UTC|newest]
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