Re: Finding and chaniging registered clocksources
From: Christoph Lameter
Date: Fri Dec 11 2009 - 09:06:46 EST
On Fri, 11 Dec 2009, Ioannis Kyriakopoulos wrote:
> However, I don't know how to found out what clocksource Linux has assigned
> for other activities apart from the one mentioned (e.g. for timekeeping) and
> how to change it, if possible.
Depends on the subsystem. Code can use time sources as needed but in
general the standard clock is used as a common time base.
> For example, I want to find out which clocksource getnstimeofday() is using.
> It could be also useful if there is a way to see all the registered
> clocksources in the system.
getnstimeofday uses the syste, cllock that can be retrieved using
/sys/devices/system/clocksource/clocksource0/current_clocksource
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