Re: [CFT] hwpmc support for Intel Ivy Bridge

On Tue, Sep 4, 2012 at 9:35 AM, Fabien Thomas <fabien.thomas_at_netasq.com> wrote:
>
> Le 3 sept. 2012 à 23:23, Baptiste Daroussin a écrit :
>
>> On Mon, Sep 03, 2012 at 02:04:21PM +0200, Fabien Thomas wrote:
>>>      Hi,
>>>
>>> Find a patch that add Intel  Ivy Bridge support to hwpmc(9).
>>> The patch also support offcore RSP token for Sandy Bridge.
>>> Note: No uncore support.
>>>
>>> Tested on:
>>> Intel(R) Xeon(R) CPU E3-1265L V2 _at_ 2.50GHz (2494.35-MHz K8-class CPU)
>>> Origin = "GenuineIntel"  Id = 0x306a9  Family = 6  Model = 3a  Stepping = 9
>>>
>>> http://people.freebsd.org/~fabient/patch-hwpmc_ivy_bridge_head
>>>
>>> cd /usr/src && patch -p0 < patch-hwpmc_ivy_bridge_head
>>> and rebuild world.
>>>
>>>
>>> Fabien
>>
>> World building, I'll keep you in touch
>>
>> Is there any particulat testing, I can do other than using the new world?
>
> Thanks for testing!
>
> Yes you can test it quickly using top mode for example:
>
> kldload hwpmc
> pmccontrol -L to list all events
>
> some test:
>
> - offcore
> pmcstat -SOFF_CORE_RESPONSE_0,rsp=REQ_DMND_DATA_RD+RES_ANY -w1 -T
>
> - unhalted cycle (programmable counter)
> pmcstat -n2000000 -SCPU_CLK_UNHALTED.THREAD_P -w4 -T
>
> - INSTR_RETIRED_ANY (fixed counter)
> pmcstat -n2000000 -S INSTR_RETIRED_ANY -w4 -T
>
> - Soft counter:
> pmcstat -SPAGE_FAULT.ALL -w4 -T
>
> all at the same time (and change view by pressing 'p':
> pmcstat -SOFF_CORE_RESPONSE_0,rsp=REQ_DMND_DATA_RD+RES_ANY -n2000000 -SCPU_CLK_UNHALTED.THREAD_P   -n2000000 -S INSTR_RETIRED_ANY -SPAGE_FAULT.ALL -w1 -T
>
>
> all events are described in the man page pmc.ivybridge
>
>
>>
>> regards,
>> Bapt
>

I suggest you to run the script you can find in
/head/tools/test/hwpmc/pmctest.py , courtesy of gnn_at_.

Thanks

Davide