On Wed, Jan 28, 2009 at 9:15 AM, Fajar A. Nugraha <fajar@xxxxxxxxx> wrote:
> On Wed, Jan 28, 2009 at 2:49 PM, Heiko <rupertt@xxxxxxxxx> wrote:
>> Can it be that one domU has that much load that it can take down all
>> the others inlc. dom0?
>
> It should not. However it depends on how you set it up. Can you share
> how you setup dom0 and domU, in particular CPU and memory allocation?
>
Hello,
i dont have set any option to give dom0 a seperate CPU or RAM,
do I have to set (dom0-cpus 0) to (dom0-cpus 1) for that?
For the memory i saw a option that goes with the grub command.
these are my domU on that host:
[root@x1blade1:~]# xm list
Name ID Mem(MiB) VCPUs State Time(s)
Domain-0 0 10147 8 r----- 388610.5
auto-input-vm1 1 999 2 -b---- 10847.7
distribution-vm1 5 999 2 -b---- 145234.6
monitoring-1 2 1999 2 -b---- 1060094.1
translator-vm1 4 999 2 -b---- 63999.2
uat-vm1 3 999 2 -b---- 9666.5
> A "good" dom0 setup would tipically :
> - has its own dedicated CPU (usually dom0), not used by domUs.
> - has enough memory (512MB would do)
> - not running any unneeded services (e.g. not running nfs server, http
> server, etc.)
>
>> Jan 28 06:07:32 x1blade1 kernel: python invoked oom-killer:
>> gfp_mask=0x201d2, order=0, oomkilladj=0
>> Jan 28 06:07:32 x1blade1 kernel:
>> Jan 28 06:07:32 x1blade1 kernel: Call Trace:
>> Jan 28 06:07:32 x1blade1 kernel: [<ffffffff802b4896>]
>> out_of_memory+0x8b/0x203
>> Jan 28 06:07:32 x1blade1 kernel: [<ffffffff8020f05e>]
>> __alloc_pages+0x22b/0x2b4
>
> This is bad. Are you perhaps running lots of services on dom0?
>
just xen and nagios nrpe which checks some system info and the domU
for there status.
in this "top" output you can see that python does something:
top - 08:25:00 up 11 days, 11:51, 1 user, load average: 0.27, 0.28, 0.37
Tasks: 196 total, 1 running, 195 sleeping, 0 stopped, 0 zombie
Cpu(s): 5.5%us, 7.1%sy, 0.0%ni, 84.7%id, 0.5%wa, 0.0%hi, 1.0%si, 1.3%st
Mem: 10390528k total, 937536k used, 9452992k free, 267344k buffers
Swap: 2048276k total, 10380k used, 2037896k free, 77120k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
6976 root 16 0 8756 1116 424 S 50 0.0 884:31.08 xenstored
368 root 15 0 368m 7000 1296 S 17 0.1 1:12.43 python
7329 root 18 0 143m 7316 2656 S 6 0.1 0:00.06 python
7342 root 18 0 143m 7312 2656 S 5 0.1 0:00.05 python
7351 root 18 0 143m 7312 2656 S 5 0.1 0:00.05 python
greetings
Heiko
> Regards,
>
> Fajar
>
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