Re: strange guest slowness after some time

[Felix Leimbach <felix.leimbach@gmx.net>]

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.

processor       : 1
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 65
model name      : Dual-Core AMD Opteron(tm) Processor 2212
stepping        : 2
cpu MHz         : 1994.996
cache size      : 1024 KB
physical id     : 0
siblings        : 2
core id         : 1
cpu cores       : 2
apicid          : 1
initial apicid  : 1
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
mca cmov              pat pse36 clflush mmx fxsr sse sse2 ht syscall nx 
mmxext fxsr_opt rdtscp lm 3dno             wext 3dnow rep_good nopl pni 
cx16 lahf_lm cmp_legacy svm extapic cr8_legacy
bogomips        : 3990.06
TLB size        : 1024 4K pages
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc