Re: Can and should the kernel HZ value be changed?

Jamie Lokier (lkd@tantalophile.demon.co.uk)
Wed, 6 Jan 1999 12:51:00 +0000

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On Mon, Jan 04, 1999 at 02:33:14PM +0100, Andrea Arcangeli wrote:
> I know one point for which it's not good to leave the timer irq "slow" on
> 32bit machines. All linux timeout (starting from select, nanosleep, poll,
> add_timer()) can be at most (~0UL>>1)-1 jiffies. If you increase the jiffy
> speed the final result is that you'll be able to handle a very little
> maximal timeout everywhere (if I remeber well going from 100 to 1000 you
> goes from month to days).

Is there any reason why the scheduler interrupt can't run faster than
the jiffies counter?

-- Jamie

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