Re: [RFC][PATCH] new timeofday core subsystem (v.A0)

Jesse Barnes
2004-09-09T06:38:32Z

On Wednesday, September 8, 2004 9:31 pm, George Anzinger wrote:
> a.) resolution. If you don't put a limit on this you will invite timer
> storms. Currently, by useing 1/HZ resolution, all timer "line up" on ticks
> and reduce the interrupt overhead that would occure if we actually tried to
> give "exactly" what was asked for. This is a matter of math and can be
> handled (assuming we resist the urge to go shopping :))

This can be bad though if lots of CPUs hit it at the same time or nearly so if
they're all trying to write the same cacheline or two.

Jesse