Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt

Chris Wedgwood
2005-07-14T23:07:28Z

On Thu, Jul 14, 2005 at 01:41:44PM -0700, Christoph Lameter wrote:

> AFAIK John simply wants to change jiffies to count in nanoseconds
> since bootup and then call it "clock_monotonic".

Clocks and counter drift so calling it <prefix>seconds would be
misleading. It would really only be good for approximate timing.

I think call it something arbitrary and work towards have a separate
mechanism for time of day (which could end up being much more
expensive to use but less frrequently needed).

> One 64 bit value no splitting into seconds and nanoseconds anymore.

Using a 64-bit value is a pain on some (many?) 32-bit CPUs.