high precision timers

[Hyeonggon Yoo]

I mean, is there an API that guarantees high precision (non architecture
dependent way)

Thanks!

2021년 5월 2일 (일) 오후 11:54, Greg KH <greg at kroah.com>님이 작성:

> On Sun, May 02, 2021 at 11:10:11PM +0900, Hyeonggon Yoo wrote:
> > the 'timer wheel' - which has low resolution works at jiffy resolution.
> > so usually it has precision of 1~10ms.
> >
> > and there's high resolution timers in kernel to have nanosecond
> resolution,
> > but it doesn't seem to have nanosecond precision
> >
> > is there a way to deal with high precision timers in kernel?
>
> What exactly are you needing here?  And do you have hardware that
> provides both high precision and high resolution?
>
> thanks,
>
> greg k-h
>
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