From: Avi Kivity <avi@qumranet.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Dor Laor <dor.laor@gmail.com>, kvm-devel@lists.sourceforge.net
Subject: Re: [patch 0/3] separate thread for IO handling V3
Date: Thu, 03 Apr 2008 15:46:50 +0300 [thread overview]
Message-ID: <47F4D1BA.8060604@qumranet.com> (raw)
In-Reply-To: <47F4B045.30102@qumranet.com>
Avi Kivity wrote:
>
> There's still something wrong. When I start Windows with these
> patches applied, Windows startup consumes ~50 sec of cpu time,
> compared to ~12 sec without. Pinning qemu into cpu 0 seems to fix this.
>
> I'll investigate some more.
>
Changing GUI_REFRESH_INTERVAL to 1000 (from 30) reduces cpu usage back
to normal. So I'm guessing there's some bad interaction between the
iothread getting the dirty log and vcpu 0.
--
error compiling committee.c: too many arguments to function
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next prev parent reply other threads:[~2008-04-03 12:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-02 23:20 [patch 0/3] separate thread for IO handling V3 Marcelo Tosatti
2008-04-02 23:20 ` [patch 1/3] QEMU/KVM: separate thread for IO handling Marcelo Tosatti
2008-04-02 23:20 ` [patch 2/3] QEMU/KVM: add function to handle signals Marcelo Tosatti
2008-04-02 23:20 ` [patch 3/3] QEMU/KVM: notify IO thread of pending bhs Marcelo Tosatti
2008-04-03 10:24 ` [patch 0/3] separate thread for IO handling V3 Avi Kivity
2008-04-03 12:46 ` Avi Kivity [this message]
2008-04-03 15:26 ` Avi Kivity
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