Re: Is it possible that xenoprof active domain profiling using pvops jeremy's kernel

[박은병 <peb1611@gmail.com>]

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I already have strictly adhered to xenoprof_tutorial.

I also tried to apply xen-4.0.0-rc3-pre unstable version. but it is also
does not work with same error message.

I want to know your active domain profiling environment, including xen
version, dom0, domU and linux distribution.


2010년 1월 28일 오후 3:50, Santos, Jose Renato G <joserenato.santos@hp.com>님의 말:

>  This is the only recent fix I am aware of
>  Active mode profiling requires carefull synchronization between dom0 and
> the guest domain
> Make sure you follow the instructions described in:
> http://www.xen.org/files/summit_3/xenoprof_tutorial.pdf
>
> Renato
>
>  ------------------------------
>  *From:* 박은병 [mailto:peb1611@gmail.com]
> *Sent:* Wednesday, January 27, 2010 7:39 PM
>
> *To:* Santos, Jose Renato G
> *Cc:* xen-devel@lists.xensource.com
> *Subject:* Re: [Xen-devel] Is it possible that xenoprof active domain
> profiling using pvops jeremy's kernel
>
>   Thanks. I am sorry for late response.
>
> the patch you have mentioned is already applied.
>
> Hum....But, I have not tried to Xen 4.0 or unstable.
>
> Is there any other difference between the patch and 4.0 or unstable about
> xenoprof.c ??
>
> 2010년 1월 24일 오전 10:01, Santos, Jose Renato G <joserenato.santos@hp.com>님의
> 말:
>
>>  This seems to be related to a recently fixed bug.
>> Try using Xen 4.0 or latest unstable or apply the patch posted in:
>> http://lists.xensource.com/archives/html/xen-devel/2009-12/msg00709.html
>>
>> Renato
>>
>>  ------------------------------
>> *From:* 박은병 [mailto:peb1611@gmail.com]
>> *Sent:* Saturday, January 23, 2010 12:33 AM
>> *To:* Santos, Jose Renato G
>> *Cc:* xen-devel@lists.xensource.com
>> *Subject:* Re: [Xen-devel] Is it possible that xenoprof active domain
>> profiling using pvops jeremy's kernel
>>
>>   I tried to use same pvops kernel(jeremy's) for both dom0 and domU, and
>> dullor's patch.
>>
>> But, it does not work well.
>>
>> dom0# opcontrol --start-daemon --event=L2_RQSTS:100000
>> --xen=/boot/xen-syms-3.4.2 --vmlinux=/boot/vmlinux-2.6.31.6-xen-xenoprof
>> --active-domains=1
>> Using 2.6+ OProfile kernel interface.
>> Reading module info.
>> Using log file /var/lib/oprofile/samples/oprofiled.log
>> Daemon started.
>>
>> dom0 seems to be good. I think,,
>>
>> and domU command
>>
>> domU# opcontrol --start --event=L2_RQSTS:100000 --xen=/boot/xen-syms-3.4.2
>> --vmlinux=/boot/vmlinux-2.6.31.6-domU-xenoprof
>> /usr/local/bin/opcontrol: line 367: timer: command not found
>> You cannot specify any performance counter events
>> because OProfile is in timer mode.
>>
>> And. Some tricky output..
>>
>> dom0#>cat /dev/oprofile/cpu_type
>> i386/core
>>
>>  domU#>cat /dev/oprofile/cpu_type
>> timer
>>
>> I would appreciate your response....:)
>>
>>
>>
>>
>> 2010년 1월 23일 오전 3:32, Santos, Jose Renato G <joserenato.santos@hp.com>님의
>> 말:
>>
>>>  To run xenoprof in active mode you need xenoprof support both in dom0
>>> and in domU. Try using the the pvops kernel with Dullor's xenoprof patch in
>>> domU too. This should solve your problem...
>>>
>>> Renato
>>>
>>>  ------------------------------
>>> *From:* xen-devel-bounces@lists.xensource.com [mailto:
>>> xen-devel-bounces@lists.xensource.com] *On Behalf Of *???
>>> *Sent:* Thursday, January 21, 2010 10:00 PM
>>> *To:* xen-devel@lists.xensource.com
>>> *Subject:* [Xen-devel] Is it possible that xenoprof active domain
>>> profiling using pvops jeremy's kernel
>>>
>>>   my system configuration
>>>
>>> xen 3.4.2, oprofile 0.9.5( xenoprof patched ), dom0( jeremy's pvops
>>> kernel 2.6.31.6 - patched dullor's xenoprof patch ), domU( vanilla kernel
>>> 2.6.32 with paravirt enabled ), distribution( ubuntu 9.10 )
>>>
>>> In passive mode, xenoprof seems to work well, opreport showed good
>>> information.
>>> but, in active mode, it seems not to be done correctly.
>>>
>>> my command is strictly followed by xenoprof tutorial doc.
>>>
>>> <dom0>
>>> opcontrol --start-daemon --event=L2_RQSTS:100000
>>> --xen=/boot/xen-syms-3.4.2 --vmlinux=/boot/vmlinux-2.6.31.6-xen-xenoprof
>>> --active-domains=7
>>>
>>> <domU>
>>> opcontrol --start --event=L2_RQSTS:100000 --xen=/boot/xen-syms-3.4.2
>>> --vmlinux=/boot/vmlinux-2.6.32-domU
>>> In domU, opcontrol was break showing "cannot find timer command??"
>>>
>>> I think that domU kernel also should be patched. Is it right?? dullor's
>>> patch available on vanilla kernel?? I had tried to patch the dullor's patch
>>> to vanilla kernel 2.6.31.6 with 2 conflict message.(mmu.c, xen-ops.h)
>>>
>>> is there anyone who succeed in running xenoprof in active mode using
>>> jeremy's pvops 2.6.31.6 dom0 ??
>>>
>>>
>>>
>>>
>>
>

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