Hi,
I have a problematic CentOS XEN server and hope someone could point me
in the right direction to optimize it a bit.
The server runs on a Core2Quad 9300, with 8GB RAM (max motherboard can
take, 1U chassis) on an Intel motherboard with a 1TB SATA HDD.
dom0 is set to 512MB limit with a few smal
2011/2/23 Rudi Ahlers :
> Hi,
>
> I have a problematic CentOS XEN server and hope someone could point me
> in the right direction to optimize it a bit.
(SNIP)
> the server itself seems to eat up a lot of resources:
>
>
> root@zaxen01:[~]$ free -m
> total used free shar
On 23/02/11 12:29, Rudi Ahlers wrote:
> Hi,
>
> I have a problematic CentOS XEN server and hope someone could point me
> in the right direction to optimize it a bit.
>
> The server runs on a Core2Quad 9300, with 8GB RAM (max motherboard can
> take, 1U chassis) on an Intel motherboard with a 1TB S
On Wed, Feb 23, 2011 at 1:37 AM, Kenni Lund wrote:
> 2011/2/23 Rudi Ahlers :
>> Hi,
>>
>> I have a problematic CentOS XEN server and hope someone could point me
>> in the right direction to optimize it a bit.
>
> (SNIP)
>
>> the server itself seems to eat up a lot of resources:
>>
>>
>> root@zaxen
Are they paravirt of HVM guests? qemu might have something to do with it if HVM
guests are involved.
- Original Message
> From: Rudi Ahlers
> To: CentOS mailing list
> Sent: Tue, 22 February, 2011 23:29:29
> Subject: [CentOS] how to optimize CentOS XEN dom0?
>
>
On Wed, Feb 23, 2011 at 1:41 AM, Ian Murray wrote:
> Are they paravirt of HVM guests? qemu might have something to do with it if
> HVM
> guests are involved.
>
Uhm, I know that I should know this, but how do I tell from a quick
glance? It's almost 2am in the morning here, and I'm a bit too tire
you should have a look at your I/O disk status.
try with iostat -dx 5 to see the disk utilization info over time.
when it comes to slowdown on a virtual environment on a Desktop grade
machine, i suspect disk I/O latency and bottleneck as a cause.
check that your disk is running at its optimal st
>
> The server runs on a Core2Quad 9300, with 8GB RAM (max motherboard can
> take, 1U chassis) on an Intel motherboard with a 1TB SATA HDD.
>
> dom0 is set to 512MB limit with a few small XEM VM's running:
>
>
> root@zaxen01:[~]$ xm list
> Name ID Mem(MiB) VCPUs
On Wed, Feb 23, 2011 at 9:06 AM, yonatan pingle
wrote:
> you should have a look at your I/O disk status.
>
> try with iostat -dx 5 to see the disk utilization info over time.
> when it comes to slowdown on a virtual environment on a Desktop grade
> machine, i suspect disk I/O latency and bottlene
On Feb 23, 2011, at 3:42 AM, Rudi Ahlers wrote:
> On Wed, Feb 23, 2011 at 9:06 AM, yonatan pingle
> wrote:
>> you should have a look at your I/O disk status.
>>
>> try with iostat -dx 5 to see the disk utilization info over time.
>> when it comes to slowdown on a virtual environment on a Deskto
On Wed, Feb 23, 2011 at 4:33 PM, Ross Walker wrote:
> On Feb 23, 2011, at 3:42 AM, Rudi Ahlers wrote:
>
>> On Wed, Feb 23, 2011 at 9:06 AM, yonatan pingle
>> wrote:
>>> you should have a look at your I/O disk status.
>>>
>>> try with iostat -dx 5 to see the disk utilization info over time.
>>> w
On Feb 25, 2011, at 4:29 AM, Rudi Ahlers wrote:
> On Wed, Feb 23, 2011 at 4:33 PM, Ross Walker wrote:
>> On Feb 23, 2011, at 3:42 AM, Rudi Ahlers wrote:
>>
>>> On Wed, Feb 23, 2011 at 9:06 AM, yonatan pingle
>>> wrote:
you should have a look at your I/O disk status.
try with i
On Fri, Feb 25, 2011 at 4:21 PM, Ross Walker wrote:
>
> It seems dom0's memory got under pressure from the other domUs.
>
> Make sure to set an absolute minimum of memory for dom0 in xend.conf or using
> the boot option (forgot what it is). I always made it to the OS min of 256MB,
> but if you
On Feb 25, 2011, at 9:28 AM, Rudi Ahlers wrote:
> On Fri, Feb 25, 2011 at 4:21 PM, Ross Walker wrote:
>
>
>>
>> It seems dom0's memory got under pressure from the other domUs.
>>
>> Make sure to set an absolute minimum of memory for dom0 in xend.conf or
>> using the boot option (forgot what
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