Brad Campbell wrote:
Troy Benjegerdes wrote:
On Thu, Feb 09, 2006 at 04:01:34PM -0600, Anthony Liguori wrote:
Jim C. Brown wrote:
-kernel-kqemu virtualizes ring 0 code.
So it basically makes qemu do what VMware does.
IIRC someone reported a 33% speedup with the new option.
That was me. That was a 33% speedup on win2k startup time. kqemu
(user only) has a negligible impact on win2k startup time which
suggests this is mostly ring 0 code running which would make it a
good benchmark for kernel-kqemu performance.
This was a terribly unscientific benchmarking so don't read too much
into it.
Regards,
Anthony Liguori
My win2k guest (with SP4, but not any updates) seemed to hang on startup
with -kernel-kqemu.
Are you using -m 256 by any chance? I get this result with around that
much ram allocated to the guest. -m 160 (or less) or -m 384 (or more)
works perfectly here..
Great tip -thank you!
I have been having the same headache as others: Linux and RectOS guests
constantly crashing in the very same spot when -kernel-kqemu is enabled.
I just made a quick test adding -m 384 and ReactOS suddenly boots all
the way with -kernel-kqemu enabled!
My test line was:
qemu.exe -kernel-kqemu -m 384 -L ./bios -boot c -hda c.img
Best regards,
Dan Sandberg
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