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Date:      Wed, 17 Oct 2012 17:00:31 -0700
From:      Jim Harris <jim.harris@gmail.com>
To:        hiren panchasara <hiren.panchasara@gmail.com>
Cc:        Davide Italiano <davide.italiano@gmail.com>, freebsd-current <freebsd-current@freebsd.org>, Fabien Thomas <fabien.thomas@netasq.com>
Subject:   Re: [CFT]hwpmc update for sandybridge-e
Message-ID:  <CAJP=Hc_rLHkmagvHW0m3pq0kb-=ShTvG3sGhvJoh9pcVREcJDg@mail.gmail.com>
In-Reply-To: <CALCpEUE_NcH9AsSuq5r1eQ-nPU5z3KOa2LKvJYRFvsGQ2hRajQ@mail.gmail.com>
References:  <1349390777.5234.9.camel@powernoodle.corp.yahoo.com> <E62FEDB0-2DB8-408F-8D2B-3A40526035AB@netasq.com> <D67C86BC-B139-4472-9FE0-E09725D1CB55@netasq.com> <CALCpEUGNRzWgmaj2KDj8VkHMjw_6uGvcjSiWT-t%2B63iUUsh64g@mail.gmail.com> <D0A99DA2-8348-441F-ACD1-BAF79AC89D14@netasq.com> <CALCpEUGdQ3ex_zopmBY_Xmf1dsB_2crZXUhnuCmYpNVTmpHF_Q@mail.gmail.com> <CAJP=Hc9YdQC5jz3H8aEdsT7xtTTWTFGyiDou1LVwLD8ROxC7Lw@mail.gmail.com> <CALCpEUE_NcH9AsSuq5r1eQ-nPU5z3KOa2LKvJYRFvsGQ2hRajQ@mail.gmail.com>

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On Wed, Oct 17, 2012 at 3:57 PM, hiren panchasara
<hiren.panchasara@gmail.com> wrote:
>
<snip>
>
>
> Thanks for the pointers Jim!
>
> It seems that everything works now with:
>
> http://www.strugglingcoder.info/patches/hwpmc_sbx_3.txt
> http://www.strugglingcoder.info/patches/pmccontrol_3.txt
> http://www.strugglingcoder.info/patches/pmctestpy_3.txt
>
> As it can be seen, I do not see any errors with the test script.
> I've also tried to take care of the sorting issues Fabien mentioned.
>
> Can you please give this a whirl?

Looks good!  Version 3 passes pmctest.py on my system.

<snip>

>
>
> I have a few questions regarding this. For my testing I am using hwpmc as a
> module.
> Problem is that any change to pmc_events.h is not reflected when I do:
> 1) rebuild /sys/modules/hwpmc - unload/load new module
> 2) rebuild /lib/libpmc/
> 3) rebuild /usr.sbin/pmccontrol and pmcstat
>
> I have to do buildworld for changes in pmc_events.h to take effect. (which
> kind of explains my delayed responses :D )
> I know I am missing something here and there should be a better way to do
> this. Any other changes (other than pmc_events.h)
> can be tested with above 3 steps.

You forgot to mention sys/pmc.h, but that was a simple change so you
probably haven't had to touch it since your initial patch.

The quick and dirty way is to just copy sys/dev/hwpmc/pmc_events.h to
/usr/include/dev/hwpmc.  Also sys/sys/pmc.h to /usr/include/sys.

Thanks,

-Jim

>>
>> Thanks for working on this!
>
> Entirely my pleasure :-)
>
> Thanks,
> Hiren
>



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