On 12/07/2012 10:04 PM, Shawn Everett wrote: > Hi All, > > I have recently installed CentOS 6.3 with QEMU+KVM for Virtualization. > > I have successfully created a Windows 2003 VM with 4GB of RAM. The host > server is an HP ML350 G8 with 24GB RAM and 24 cores. Details of one of > the cores is shown below: > > processor : 23 > vendor_id : GenuineIntel > cpu family : 6 > model : 45 > model name : Intel(R) Xeon(R) CPU E5-2620 0 @ 2.00GHz > stepping : 7 > cpu MHz : 1200.000 > cache size : 15360 KB > physical id : 1 > siblings : 12 > core id : 5 > cpu cores : 6 > apicid : 43 > initial apicid : 43 > fpu : yes > fpu_exception : yes > cpuid level : 13 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca > cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx > pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology > nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 > ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 x2apic popcnt aes xsave avx lahf_lm > ida arat epb xsaveopt pln pts dts tpr_shadow vnmi flexpriority ept vpid > bogomips : 3989.86 > clflush size : 64 > cache_alignment : 64 > address sizes : 46 bits physical, 48 bits virtual > power management: > > On an otherwise completely idle system I've noticed the load to be 1.0 to > 1.5 range. Running "top" shows the culprit to be: qemu-kvm. > > Is this normal behavior? I would have expected the load to be pretty > light. > > Stopping the VM restores the load to normal once again. > > Is there anything I can do to reduce the load? You probably have 12 cores and thanks to hyper-threading that gives you 24 threads (big difference). Have you installed the virtio drivers in the VM? That might reduce the load a bit. Also was does running "vmstat 3" for about 20 seconds show? Regards, Dennis _______________________________________________ CentOS-virt mailing list CentOS-virt@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos-virt
