Re: [Xen-users] dom0 got load of 80

["Ryan Burke" <burke@xxxxxxxxxxxxxxxxx>]

> On Wed, Jan 28, 2009 at 3:30 PM, Heiko <rupertt@xxxxxxxxx> wrote:
>> 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?
>
> It would be best, yes.
> Here's what I use on xend-config.sxp
>
> (dom0-cpus 1)
> (dom0-min-mem 256)
>
> and on grub's menu.lst
>
>         kernel /xen.gz-2.6.18-128.el5 dom0_mem=512M dom0_vcpus_pin
>

Sorry for the thread jack, this will be short...

This is the first I've heard of the "dom0_vcpus_pin" option. So that is
the same as
 xm vcpu-set 0 1
 xm vcpu-pin 0 0 0
where Dom0 will be pinned to CPU0 at boot? What version of Xen did that
option make its appearance?

If so, that would be nice since I've been pinning Dom0 to CPU0 in rc.local
and that always seemed weird to pin after it had booted.

Thanks,
Ryan


>> 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
>
> This shows dom0 has 10G mem, which is good
>
>>>
>>>> Jan 28 06:07:32 x1blade1 kernel: python invoked oom-killer:
>>>> gfp_mask=0x201d2, order=0, oomkilladj=0
>
> This one shows python eats the memory. Which is veeeeery bad.
> Now python is used for lots of things (xend among them), but in my
> setup (where dom0 can only use 256-512M, and it only runs xend
> service) it never acted up like that.
>
> So the next question is what other programs on your dom0 uses python,
> and look at it. You can disable them to see if it has any effects.
>
> Regards,
>
> Fajar
>
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