Vince,

On Tue, Oct 21, 2008 at 9:45 PM, Vince Weaver <[EMAIL PROTECTED]> wrote:
> Hello
>
> I'm having some weird problems with perfmon2 on a 2.6.27.2 kernel patched
> with the newest perfmon patch.
>
> This is on an Intel Core machine.
>
Well you are running on an Intel Core Duo system (Yonah). It it not the same
as Intel Core 2 (Merom).

This is one of the system I don't have access to, so it does not receive a lot
of testing. That could explain what you are seeing.

Could you enable perfmon debugging and send me the output of dmesg?
To enable debugging: pfmon/tests/pfdbg --on --printk

Thanks.


> For some reason, any counter I read seems to have at least 2^32 added to
> it, sometimes multiple times that.
>
> For example:
> chocovic:~% pfmon /bin/true
> 4295152148 UNHALTED_CORE_CYCLES
> chocovic:~% pfmon /bin/true
> 4295148838 UNHALTED_CORE_CYCLES
> chocovic:~% pfmon /bin/true
> 4295151887 UNHALTED_CORE_CYCLES
>
> chocovic:~% pfmon -e instructions_retired /bin/true
> 4295090034 INSTRUCTIONS_RETIRED
>
> chocovic:~% pfmon --version
> pfmon version 3.6 Date: Oct 21 2008
> Copyright (C) 2001-2007 Hewlett-Packard Company
>
> Possibly relevant boot messages:
>
> perfmon: version 2.82
> perfmon: CPU hotplug support enabled
> perfmon: Intel Core PMU detection failed
> perfmon: detected architecural perfmon v1
> perfmon: num_gen=2 width=40 num_fixed=0 width=0
> perfmon: Intel architectural PMU installed
> perfmon: processor does not have PEBS support
> perfmon: added sampling format default
>
> CPU info:
>
> cpu family      : 6
> model           : 14
> model name      : Genuine Intel(R) CPU           T2300  @ 1.66GHz
> stepping        : 8
>
>
> Thanks for any help on this issue...
>
> Vince
>
>
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
> Build the coolest Linux based applications with Moblin SDK & win great prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> _______________________________________________
> perfmon2-devel mailing list
> perfmon2-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
>

-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
perfmon2-devel mailing list
perfmon2-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/perfmon2-devel

Reply via email to