Re: [ts-7000] sub 10ms sleeps/timers in Linu 2.6.29

[Razvan-Ionut Stoian <>]

You should apply the real time patches (kernel.org), too, since you might consider using the nanosleep()  functions found in the "rt" library. (-lrt).

--- On Mon, 9/20/10, Razvan-Ionut Stoian <> wrote:

From: Razvan-Ionut Stoian <>
Subject: Re: [ts-7000] sub 10ms sleeps/timers in Linu 2.6.29
To:
Date: Monday, September 20, 2010, 10:59 AM

 

You should apply the "clockevents"  patch to your kernel sources. You can find it in the file section.

--- On Mon, 9/20/10, mailorder_va <> wrote:

From: mailorder_va <>
Subject: [ts-7000] sub 10ms sleeps/timers in Linu 2.6.29
To:
Date: Monday, September 20, 2010, 10:32 AM

 

I am trying to get sub 10ms time resolution (1 ms or less needed). I compiled 2.6.29 and was able to get it to run on the ts7200. I wrote a simple program which does a usleep(100) for 1000 times and it takes 10 seconds to run (ie usleep resolution is 10ms). I searched and found mention of CONFIG_HIGH_RES_TIMERS - this variable does not seem to be defined in the .config file. The CLOCK_HZ in the .config file seems to be set at 100 and I cannot seem to change it (ie I can change it but Kconfig sets it back to 100). I am probably missing something obvious - just do not know what.

Any help would be appreciated.

Thanks

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