Kuniyasu Suzaki wrote:
> [...]
>>2) For best performances with kqemu, it is better to use Linux 2.4 as
>>guest OS (I know this is far from acceptable, but it can help some
>>people to get better performance !).
Please tell me the reason why Linux 2.4 shows better performance, if
you have time. Does the difference of clock tick cause the problem?
The Linux 2.6 kernel has more code running with the interrupts disabled
than the 2.4 one. kqemu interprets the x86 code when the interrupts are
disabled, so it is very slow in this case.
A potential solution I am investigating is to use the new
paravirtualization API of the kernel versions >= 2.6.20.
Regards,
Fabrice.
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