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From: Jeff Yu <g9862567@cs.nthu.edu.tw>
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Subject: [Qemu-devel]  How to measure guest instruction count ?
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Hi all,

I am new to qemu.
Recently, I was trying to measure the performance(MIPS) of qemu executing
splash2 benchmark.
At first, I am trying the -icount flag built in qemu, but with the limited
user manual.
I also read the post on Qemu-devel Precise guest instruction
count.<http://lists.gnu.org/archive/html/qemu-devel/2009-03/msg00498.html>
I can not understand how it works very well.
Can anyone explain to me how to get the instruction count number by the
-icount feature?

Also, in order to get an accurate performance,  I need to skip the
instructions during boot up process.
I want to only calculate the instruction count of executing the splash2
benchmark.
Can anyone give me some hint where can I start with?

If I am not clear enough, please let me know.
Thanks in advance for any reply.

Jeff Yu

--0014853a01ec43b94704a7cec0f9
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Hi all,<br><br>I am new to qemu.<br>Recently, I was trying to measure the p=
erformance(MIPS) of qemu executing splash2 benchmark.<br>At first, I am try=
ing the -icount flag built in qemu, but with the limited user manual.<br>
I also read the post on Qemu-devel <a href=3D"http://lists.gnu.org/archive/=
html/qemu-devel/2009-03/msg00498.html">Precise guest instruction count.</a>=
<br>I can not understand how it works very well.<br>Can anyone explain to m=
e how to get the instruction count number by the -icount feature?<br>
<br>Also, in order to get an accurate performance,=A0 I need to skip the in=
structions during boot up process.<br>I want to only calculate the instruct=
ion count of executing the splash2 benchmark.<br>Can anyone give me some hi=
nt where can I start with?<br>
<br>If I am not clear enough, please let me know.<br>Thanks in advance for =
any reply.<br><br>Jeff Yu<br>

--0014853a01ec43b94704a7cec0f9--