From: "andrzej zaborowski" <balrog@zabor.org>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Best way to get real performance info?
Date: Wed, 6 Sep 2006 15:37:30 +0200 [thread overview]
Message-ID: <fb249edb0609060637s793ae0a9le3815b33934c9f5e@mail.gmail.com> (raw)
In-Reply-To: <b921df970609060510x5bce9a9t1e1645fb7a1d72a1@mail.gmail.com>
On 06/09/06, Alessandro Corradi <ale.corradi@gmail.com> wrote:
>
> Hi all,
> I need to measure the performance of a host OS, a guest OS with and without
> kqemu.
> I particular I need to have performance info about CPU. I made a simple C
> program that makes only arithmetical operations and long cycles.
> I run "time ./myapp" but the results are not the real ones. Can someone tell
> me how to get this measures?
Hi,
I don't know about real benchmarking but one improvement I can think
of is measure the times on host, with something like the following:
[user@host] $ nc -l 10000; time nc -l 10000
and
[user@guest] $ nc host_ip_here 10000 <<< started; ./myapp; nc
host_ip_here 10000 <<< finished
(nc is netcat)
It's still very inaccurate but the error is small if ./myapp takes
long. Perhaps someone will have better ideas.
> Thanks
>
> Ale
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://lists.nongnu.org/mailman/listinfo/qemu-devel
>
>
>
--
balrog 2oo6
prev parent reply other threads:[~2006-09-06 13:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-06 12:10 [Qemu-devel] Best way to get real performance info? Alessandro Corradi
2006-09-06 13:37 ` andrzej zaborowski [this message]
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