I am using qemu-kvm, cli as the following:
qemu-system-x86_64 -drive
file=test-notes.img,if=virtio,cache=none,boot=on -net
nic,macaddr=00:00:00:11:22:88,model=virtio -net tap -m 1024 -vnc :3
I open powerpoint 2007, and drag a rectangel, it moves very
slowly. it must meet the following conditions to produce the same
result:
(1) lotus notes is running.
(2) logon through rdestktop.
if I connect through vnc, it will not happen; if I don't run
louts notes, it will not happen. if I change to 2 vcpus as the
following cli, it will respond much better.
qemu-system-x86_64 -drive
file=test-notes.img,if=virtio,cache=none,boot=on -net
nic,macaddr=00:00:00:11:22:88,model=virtio -net tap -m 1024 -vnc :3
-smp 2
I first doubt that maybe it's from windows internal problem, so
I tested on a uni-processor PC, but It looks good.
I also run qemu-kvm with -no-kvm, it produce the same results.
I run kvm-stat when dragging a rectangle, the output is as the following:
exits 4650520 24645
insn_emulation 3508180 15158
host_state_reload 1273409 13999
io_exits 1031465 13504
irq_injections 179104 2629
hypercalls 131481 2084
halt_wakeup 33589 495
halt_exits 33584 495
irq_exits 105020 237
pf_fixed 449879 106
fpu_reload 16852 54
mmio_exits 46426 1
mmu_cache_miss 9985 0
mmu_shadow_zapped 11736 0
signal_exits 2145 0
remote_tlb_flush 251 0
it seems that qemu-kvm is emulating some instruction which take
much cpu resource, but I don't know how to find the emuated
instructions.
Any suggestions? thanks.
Regards.
Green.
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