Re: [PATCH v4 1/4] Produce system time from correlated clocksource

From: Thomas Gleixner
Date: Thu Oct 15 2015 - 04:14:39 EST


On Thu, 15 Oct 2015, Richard Cochran wrote:
> Thomas seems to say that there are *other* applications that will want
> to transform device time into system time, but why does your audio
> application use the system time, when the audio-to-ptp time is
> directly available, without any man in the middle?

PTP time is slow to access. Having a correlation to system time makes
a log of things simpler; nanosleep is the most obvious example.

Thanks,

tglx
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