Re: One of these things (CONFIG_HZ) is not like the others..

From: Santosh Shilimkar
Date: Wed Jan 23 2013 - 00:17:41 EST


On Wednesday 23 January 2013 03:22 AM, Tony Lindgren wrote:
* John Stultz <john.stultz@xxxxxxxxxx> [130122 11:02]:

Correct, with HRT, we actually trigger the HZ-frequency timer tick
from an hrtimer (which expires based on the system time driven by
the clocksource). Thus even if there is a theoretical error between
the ideal HZ and what the hardware can do, that error will not
propagate forward.

If there's no cumulative error, sounds like the way to go is to select
HRT for ARM multiplatform builds and set the HZ to 100 then.

HIGH_RES_TIMERS are always enabled by default for OMAP as well as
multi-platform build.

Regards,
Santosh
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