From: Will Trives <will-J70FMD0Zi3SBcRoGwV6fIw@public.gmane.org>
To: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: kvm: qemu: remove SIGUSR2 from io_sigset patch slows VMs
Date: Sun, 20 Jan 2008 10:19:49 +1100 [thread overview]
Message-ID: <1200784789.6255.7.camel@Athas> (raw)
Hello,
This patch :
kvm: qemu: remove SIGUSR2 from io_sigset
Applied 15th Jan 2008 looks to kill I/O performance for me. As soon as I
revert it my VMs are much faster. I don't really use SMP for my guests,
perhaps this patch has made uniprocessor VMs slower ?
The issue occurs even when using RAW images as well as QCOW2 it also
occurs if the guest is running Windows OR Linux.
Regards,
Will Trives
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