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Date: Tue, 20 May 2008 21:56:18 +0300
From: "Cheif Jones" <avivgnet@gmail.com>
Subject: [Qemu-devel] Performance Monitoring
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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

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Hi All,<br><br>I&#39;m doing a research project in&nbsp;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 &quot;JIT&quot;  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).<br>
<br>Is it possible to disable Qemu&#39;s JIT capabilities and get target opcode statistics?<br><br>Cheif<br>

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