thread context switching

thread context switching

[Nada Saif]

Hi,

I want to measure thread context switching in c, How I can do that?

Thanks,
N.A.S
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thread context switching

[parinay]

Did you try the solution mentioned by Saqlain ?

http://lists.kernelnewbies.org/pipermail/kernelnewbies/2014-March/010050.html


On Tue, Mar 18, 2014 at 9:31 PM, Nada Saif <nada.saif7@gmail.com> wrote:
> Hi,
>
> I want to measure thread context switching in c, How I can do that?
>
> Thanks,
> N.A.S
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>



-- 
easy is right
begin right and you're easy
continue easy and you're right
the right way to go easy is to forget the right way
and forget that the going is easy....

thread context switching

[Greg KH]

On Tue, Mar 18, 2014 at 07:01:50PM +0300, Nada Saif wrote:
> Hi,
> 
> I want to measure thread context switching in c

Why?

> , How I can do that?\

Have you looked at the perf command?

thread context switching

[Valdis.Kletnieks at vt.edu]

On Tue, 18 Mar 2014 19:01:50 +0300, Nada Saif said:

> I want to measure thread context switching in c, How I can do that?

What are you trying to measure, exactly, and why?  The answer depends on
the details of the question.

However, my first go-to solution would see if 'perf' can cough up the
numbers you need.  It's able to slurp out all sorts of timing data from
the kernel (though some data and trace points require CONFIG_* variables
to be set in the kernel build).
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thread context switching

[Mandeep Sandhu]

On Tue, Mar 18, 2014 at 10:24 PM,  <Valdis.Kletnieks@vt.edu> wrote:
> On Tue, 18 Mar 2014 19:01:50 +0300, Nada Saif said:
>
>> I want to measure thread context switching in c, How I can do that?

Looks suspiciously like an interview-type question? :)

>
> What are you trying to measure, exactly, and why?  The answer depends on
> the details of the question.
>
> However, my first go-to solution would see if 'perf' can cough up the
> numbers you need.  It's able to slurp out all sorts of timing data from
> the kernel (though some data and trace points require CONFIG_* variables
> to be set in the kernel build).
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>

thread context switching

[nayobix]

Try ftrace for the scheduler

On March 18, 2014 6:01:50 PM EET, Nada Saif <nada.saif7@gmail.com> wrote:
>Hi,
>
>I want to measure thread context switching in c, How I can do that?
>
>Thanks,
>N.A.S
>
>
>------------------------------------------------------------------------
>
>_______________________________________________
>Kernelnewbies mailing list
>Kernelnewbies at kernelnewbies.org
>http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies

-- 
nayobix
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thread context switching

[Oussama Jabbari]

Hello,

maybe KernalShark can help:

https://lwn.net/Articles/425583/

Regards,

On Wed, Mar 19, 2014 at 10:10 AM, nayobix <nayobix@nayobix.org> wrote:
> Try ftrace for the scheduler
>
> On March 18, 2014 6:01:50 PM EET, Nada Saif <nada.saif7@gmail.com> wrote:
>>
>> Hi,
>>
>> I want to measure thread context switching in c, How I can do that?
>>
>> Thanks,
>> N.A.S
>>
>> ________________________________
>>
>> Kernelnewbies mailing list
>> Kernelnewbies at kernelnewbies.org
>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>
>
> --
> nayobix
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>

thread context switching

[Nada Saif]

Thanks guys . I thought there is an easy way for that...I'm trying to do it
with multi-threads & synchronization..

Bests,



On Wed, Mar 19, 2014 at 1:54 PM, Oussama Jabbari
<oussama.jabbari@gmail.com>wrote:

> Hello,
>
> maybe KernalShark can help:
>
> https://lwn.net/Articles/425583/
>
> Regards,
>
> On Wed, Mar 19, 2014 at 10:10 AM, nayobix <nayobix@nayobix.org> wrote:
> > Try ftrace for the scheduler
> >
> > On March 18, 2014 6:01:50 PM EET, Nada Saif <nada.saif7@gmail.com>
> wrote:
> >>
> >> Hi,
> >>
> >> I want to measure thread context switching in c, How I can do that?
> >>
> >> Thanks,
> >> N.A.S
> >>
> >> ________________________________
> >>
> >> Kernelnewbies mailing list
> >> Kernelnewbies at kernelnewbies.org
> >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
> >
> >
> > --
> > nayobix
> >
> > _______________________________________________
> > Kernelnewbies mailing list
> > Kernelnewbies at kernelnewbies.org
> > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
> >
>
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