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* PowerPoint performance degrade greatly when logon on through rdesktop to winxp, and when lotus notes is running.
@ 2011-07-05  9:40 ya su
  2011-07-05  9:46 ` Avi Kivity
  0 siblings, 1 reply; 4+ messages in thread
From: ya su @ 2011-07-05  9:40 UTC (permalink / raw)
  To: kvm

     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.

^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-07-11 15:46 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-07-05  9:40 PowerPoint performance degrade greatly when logon on through rdesktop to winxp, and when lotus notes is running ya su
2011-07-05  9:46 ` Avi Kivity
2011-07-05 14:05   ` ya su
2011-07-11 15:46     ` Avi Kivity

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