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

[박은병 <peb1611@gmail.com>]

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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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