Re: strange guest slowness after some time

[Tomasz Chmielewski <mangoo@wpkg.org>]

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:


-- 
Tomasz Chmielewski
http://wpkg.org