From: matthias.bgg@googlemail.com (Matthias Brugger)
To: kernelnewbies@lists.kernelnewbies.org
Subject: blktrace vs ftrace
Date: Thu, 02 Feb 2012 20:06:49 +0100 [thread overview]
Message-ID: <4F2ADEC9.1090200@gmail.com> (raw)
In-Reply-To: <CAGdaadb_SQimEp3O_iH+LpFSutEkPek-t0Y2bVc=FuWU8ZqvLg@mail.gmail.com>
On 02/02/2012 07:15 PM, Mulyadi Santosa wrote:
> On Thu, Feb 2, 2012 at 17:20, Matthias Brugger
> <matthias.bgg@googlemail.com> wrote:
>> Hi all,
>>
>> I'm trying to analize I/O behavior of Qemu on the host.
>
> what is your complete command to invoke Qemu?
qemu -hda scheduler.raw -drive
file=/mnt/disk/testdisk2.img,if=virtio,cache=none -m 1024 -enable-kvm -k
es -smp 2 -vnc 127.0.0.1:10 -smb /home/matthias/nfs/
>
> sometimes Qemu's I/O behaviour can be modified by certain parameter.
> All I know recent Qemu release (>= 1.x) use iothread by default, which
> might explain your 4 threads reads.
I use qemu-0.15.1 configured with the following parameter:
./configure --disable-xen --enable-kvm --enable-io-thread
--enable-vnc-thread --disable-darwin-user --disable-bsd-user
--target-list=i386-softmmu
--
---
http://motzblog.wordpress.com/
next prev parent reply other threads:[~2012-02-02 19:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-02 10:20 blktrace vs ftrace Matthias Brugger
2012-02-02 18:15 ` Mulyadi Santosa
2012-02-02 19:06 ` Matthias Brugger [this message]
2012-02-03 5:59 ` Mulyadi Santosa
2012-02-08 10:59 ` Matthias Brugger
2012-02-08 17:04 ` Mulyadi Santosa
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