Tomasz Chmielewski wrote: > Felix Leimbach schrieb: >> Tomasz Chmielewski wrote: >>> Felix Leimbach schrieb: >>>> Out of 3 e1000 guests none has ever been hit. >>>> >>>> Observed with kvm-83 and kvm-84 with the host running in-kernel KVM >>>> code (linux 2.6.25.7) >>> Could you add a (unused) e1000 interface to your virtio guests? >>> As this issue happens rarely for me, maybe you could help to >>> reproduce it as well (i.e. if network gets slow on virtio interface, >>> give e1000 a IP address, and try if network is also slow on e1000 on >>> the very same guest). >> Will do and report >>> >>> BTW, what CPU do you have? >> One dual core Opteron 2212 >> Note: I will upgrade to two Shanghai Quad-Cores in 2 weeks and test >> with those as well. > > I have this "slowness" on an Intel CPU as well, after about 10 days of > guest uptime (using virtio net): > > processor : 1 > vendor_id : GenuineIntel > cpu family : 6 > model : 15 > model name : Intel(R) Xeon(R) CPU 3050 @ 2.13GHz > stepping : 6 > cpu MHz : 2133.410 > cache size : 2048 KB > physical id : 0 > siblings : 2 > core id : 1 > cpu cores : 2 > fpu : yes > fpu_exception : yes > cpuid level : 10 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge > mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe > syscall lm constant_tsc arch_perfmon pebs bts rep_good pni monitor > ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm > bogomips : 4266.87 > clflush size : 64 > cache_alignment : 64 > address sizes : 36 bits physical, 48 bits virtual > power management: > > For the Intel server, the guest is using the e1000 NIC or virtio or other? I have a few DL320G5s with this processor; I have not hit this problem running rhel3 and rhel4 guests using e1000/scsi devices. david -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
