linux-kernel - Re: Better resolution using the hrtimers infrastructure

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Message-ID: <45334112.8070202@privacy.net>
Date:	Mon, 16 Oct 2006 10:21:38 +0200
From:	John <me@...vacy.net>
To:	linux-kernel@...r.kernel.org
Subject: Re: Better resolution using the hrtimers infrastructure

John wrote:

> I've been experimenting with the high-resolution timer subsystem on the
> x86 platform (specifically, P4 2.8 GHz) running Linux 2.6.16.28. (LAPIC
> and IOAPIC turned on, pre-emptible kernel, HZ=250)
> 
> I wrote a small app to create a POSIX timer (timer_create(),
> timer_settime(), etc) that fires with a given period. The scheduling
> policy is set to SCHED_RR. After some time, the process writes the
> distribution of "elapsed time between signals" to a file, and exits. I
> then post-process this file to output average time between signals,
> standard deviation, occurences +/- 5 µs and occurences +/- 10 µs.
> 
> [...]

Given the dearth of replies, I assume that linux-kernel is not the 
appropriate venue for this type of question.

Could someone point to a better forum?

Regards.

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