Re: [PATCH v2] ACPI: Replace msleep() with usleep_range() in acpi_os_sleep().

[Len Brown]

On Wed, Nov 20, 2024 at 1:50 PM Rafael J. Wysocki <rafael@xxxxxxxxxx> wrote:

> > 50 usec is likely more than enough in practice.
>
> And would you use the same slack value regardless of the sleep
> duration, or make it somehow depend on the sleep duration?

timerslack_ns is 50 usec for all user-space, no matter the duration.

This part was done right -- it doesn't depend on the sleep duration.

Coalescing depends on the pattern of wakeups over time.
That pattern doesn't necessarily depend on sleep duration,
so it is a hard sell to tie them together.


-- 
Len Brown, Intel