Hello,

I think it is better to use Bochs for such purpose …

Stanislav

From: qemu-devel-bounces+stlintel=gmail.com@nongnu.org [mailto:qemu-devel-bounces+stlintel=gmail.com@nongnu.org] On Behalf Of Cheif Jones
Sent: Tuesday, May 20, 2008 8:56 PM
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] Performance Monitoring

Hi All,

I'm doing a research project in which i want to run an OS under an emulator for a period of time and get full CPU opcode statistics (how many times every opcode was executed). As far as i understand the Qemu design, it is doing "JIT" translation of terget opcode to host opcodes to improve performance, and so there is no easy way to count target opcodes (e.g a loop is compiled JIT and runs natively).

Is it possible to disable Qemu's JIT capabilities and get target opcode statistics?

Cheif