Re: [perfmon2] syst_smpl of perf_example program can not attach events

[stephane eranian <eranian@go...>]

Hi,


2011/2/20 explore_zjx <explore_zjx@...>:
> Hello, everyone:
>      My platform is intel westmere (single socket) . The cpu is core i3. the
> OS kernel is linux 2.6.31. However, I encounter the following errors when I
> run the syst_smpl program,
> the error is :
>     syst_smpl: can not attach the events PERF_COUNT_HW_CPU_CYCLES: invalid
> parameters.
>     The task_smpl program is the same error as the syst_smpl.
>     The errors was occured at the call point of  the function of
> perf_event_open() in setup_cup()..
>  I want to know  the reason of the errors. Anyone can response me ?

Hard to say what's wrong.
Could you try with a more recent kernel?
I know that Westmere was not specially supported in 2.6.31, however
it should default to generic Intel X86.

> Thanks in advance!
> Jason
> 2011/2/19
>
>
>
>
>
>
>
>
>
>
> ------------------------------------------------------------------------------
> The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE:
> Pinpoint memory and threading errors before they happen.
> Find and fix more than 250 security defects in the development cycle.
> Locate bottlenecks in serial and parallel code that limit performance.
> http://p.sf.net/sfu/intel-dev2devfeb
> _______________________________________________
> perfmon2-devel mailing list
> perfmon2-devel@...
> https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
>
>

[perfmon2] syst_smpl of perf_example program can not attach events

[explore_zjx <explore_zjx@12...>]

Hello, everyone:
     My platform is intel westmere (single socket) . The cpu is core i3. the OS kernel is linux 2.6.31. However, I encounter the following errors when I run the syst_smpl program,
the error is :
    syst_smpl: can not attach the events PERF_COUNT_HW_CPU_CYCLES: invalid parameters.
    The task_smpl program is the same error as the syst_smpl.
    The errors was occured at the call point of  the function of perf_event_open() in setup_cup()..
 I want to know  the reason of the errors. Anyone can response me ?
Thanks in advance!
Jason
2011/2/19

[perfmon2] syst_smpl of perf_example program can not attach events

[explore_zjx <explore_zjx@12...>]

Hello, everyone:
     My platform is intel westmere (single socket) . The cpu is core i3. the OS kernel is linux 2.6.31. However, I encounter the following errors when I run the syst_smpl program,
the error is :
    syst_smpl: can not attach the events PERF_COUNT_HW_CPU_CYCLES: invalid parameters.
    The task_smpl program is the same error as the syst_smpl.
    The errors was occured at the call point of  the function of perf_event_open() in setup_cup()..
     I found that the error occures due to the statement “fds[i].hw.watermark = 1;",  The error disappeared
 when the statement was commented.
   I want to know  the reason of the errors. Anyone can response me ?
  However, the same version of libpfm4.  I test it on another platform, which is Quad-Core AMD Opteron(tm) Processor 2378. The OS is linux AS5(2.6.34).  libpfm4 works properly.  　 
how about your suggestion?
Thanks in advance!
Jason
2011/2/22

Re: [perfmon2] syst_smpl of perf_example program can not attach events

[stephane eranian <eranian@go...>]

2011/2/22 explore_zjx <explore_zjx@...>:
> Hello, everyone:
>      My platform is intel westmere (single socket) . The cpu is core i3. the
> OS kernel is linux 2.6.31. However, I encounter the following errors when I
> run the syst_smpl program,
> the error is :
>     syst_smpl: can not attach the events PERF_COUNT_HW_CPU_CYCLES: invalid
> parameters.
>     The task_smpl program is the same error as the syst_smpl.
>     The errors was occured at the call point of  the function of
> perf_event_open() in setup_cup()..
>      I found that the error occures due to the statement
> “fds[i].hw.watermark = 1;",  The error disappeared
>  when the statement was commented.
>    I want to know  the reason of the errors. Anyone can response me ?
>   However, the same version of libpfm4.  I test it on another platform,
> which is Quad-Core AMD Opteron(tm) Processor 2378. The OS is linux
> AS5(2.6.34).  libpfm4 works properly.
> how about your suggestion?

Yes, try 2.6.34 on your Westmere system.

> Thanks in advance!
> Jason
> 2011/2/22
>
>
>
>
>
>
>
>
>
>
>
>

Re: [perfmon2] syst_smpl of perf_example program can not attach events

[stephane eranian <eranian@go...>]

Hi,


2011/2/20 explore_zjx <explore_zjx@...>:
> Hello, everyone:
>      My platform is intel westmere (single socket) . The cpu is core i3. the
> OS kernel is linux 2.6.31. However, I encounter the following errors when I
> run the syst_smpl program,
> the error is :
>     syst_smpl: can not attach the events PERF_COUNT_HW_CPU_CYCLES: invalid
> parameters.
>     The task_smpl program is the same error as the syst_smpl.
>     The errors was occured at the call point of  the function of
> perf_event_open() in setup_cup()..
>  I want to know  the reason of the errors. Anyone can response me ?

Hard to say what's wrong.
Could you try with a more recent kernel?
I know that Westmere was not specially supported in 2.6.31, however
it should default to generic Intel X86.

> Thanks in advance!
> Jason
> 2011/2/19
>
>
>
>
>
>
>
>
>
>
> ------------------------------------------------------------------------------
> The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE:
> Pinpoint memory and threading errors before they happen.
> Find and fix more than 250 security defects in the development cycle.
> Locate bottlenecks in serial and parallel code that limit performance.
> http://p.sf.net/sfu/intel-dev2devfeb
> _______________________________________________
> perfmon2-devel mailing list
> perfmon2-devel@...
> https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
>
>