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From: fjohnber@zoho.com (Fredrick)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Measuring time in range of microseconds.
Date: Tue, 06 Dec 2011 18:42:18 -0800	[thread overview]
Message-ID: <4EDED28A.1010009@zoho.com> (raw)
In-Reply-To: <CA+MoWDrTmXyYn7AhHb_JoGDmo6N=y+wnqKQPcuZsE+UO_hkmjg@mail.gmail.com>

I think if the specific ARM platform you are working supports a oneshot 
clock_device, you would get the high res timer support.

You can check for clock_devices defined in your platform having feature 
- CLOCK_EVT_FEAT_ONESHOT.

-Fredrick

On 12/06/2011 03:17 AM, Peter Senna Tschudin wrote:
> Hi Sathishkumar,
>
> rdtsc is x86 specific... Sorry.
>
> But there are other options.
>
> Compares rdtsc with hpet:
> http://aufather.wordpress.com/2010/09/08/high-performance-time-measuremen-in-linux/
>
> Other reference about timers:
> http://the-b.org/Linux_timers
>
> I'm not sure if HPET works on ARM.
>
> []'s
>
> Peter
>
> On Tue, Dec 6, 2011 at 9:06 AM, Sathishkumar Duraisamy
> <bewithsathish@gmail.com>  wrote:
>> Hi Peter,
>>
>> Thanks for rdtsc. But I looking to measure time inside Linux Kernel
>> Module in ARM architecture.
>>
>> --
>> Regards,
>> Sathishkumar D
>> http://flowersopenlab.weebly.com/
>
>
>

  reply	other threads:[~2011-12-07  2:42 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-06  8:47 Measuring time in range of microseconds Sathishkumar Duraisamy
2011-12-06 10:46 ` Peter Senna Tschudin
2011-12-06 11:06   ` Sathishkumar Duraisamy
2011-12-06 11:17     ` Peter Senna Tschudin
2011-12-07  2:42       ` Fredrick [this message]
2011-12-07  7:11         ` Sathishkumar Duraisamy
2011-12-07  9:40           ` RKK
2011-12-07 10:05             ` Sathishkumar Duraisamy

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