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[Qemu-devel] performance monitor


From: Clemens Kolbitsch
Subject: [Qemu-devel] performance monitor
Date: Thu, 3 Jan 2008 21:36:26 +0100
User-agent: KMail/1.9.6

hi!
has anyone ever used some "real" performance monitoring tools (like papiex, 
perfex, pfmon, etc.) on qemu? i'm running a debian linux and would like to 
time some applications inside qemu and have tried the perfmon2 kernel-patch 
(http://perfmon2.sourceforge.net/) for testing.

sadly, it does not work... dmesg tells me that the CPU is not identified 
correctly ("unsupported family=6"). Now i am not really sure what type of 
hardware-support the monitor relies on (i think PMU is the correct term, but 
I'm not sure about that) and what CPUs are supported (dmesg tells me that 
qemu simulates a Pentium M, but that's probably because I've compiled the 
kernel on my *real* Pentium M).

... Ok, to cut a long question short: Is there any hardware support im qemu 
for doing monitoring (that goes deeper than using "time") and has anyone ever 
tested something that could work?

Thanks!
Clemens




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