Hi,
I have used lmbench to test the performance of Xenolinux (HVM)
CPU: Intel (R) Core (TM)2 T7400@2.16GHz
Memory size: 1GB
NIC: Intel PCIe Gigabit LAN chip
HD: Samsung 80GB/7200rpm/8M
Dom0: 2.6.19-1.2911.6.5.fc6xen
DomU: 2.6.20-1.2944.fc6
The context switch time seems saturated along with increasement of processes?
e.g.
size of processes 64kB
N=number of process
t=context switch time
when N<32, t will be stable only about 10µs
when N=64, t will increase to about 150 µs
N=92, t will also keeps about 150µs
Is it possible, that there will be an infinit serie of plateaus with different
range of N(number of processes) like so:
N<50 t=10µs
50<100 t=150µs
100<200 t=1ms
...
How can it be explained?
Thanks
Songtao
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