On Sun, 15 Jul 2001, Ian Dowse wrote:
> The patch below causes the samples of running processes to be
> somewhat randomised; instead of being taken every 5 seconds, the
> gap now varies in the range 4 to 6 seconds, so that synchronisation
> should no longer occur. Would there be any objections to my committing
I think that is far too much variation. 5 seconds is hard-coded into
the computation of the load average (constants in cexp), so even a
variation of +-1 ticks breaks the computation slightly.
> Index: vm/vm_meter.c
> RCS file: /dump/FreeBSD-CVS/src/sys/vm/vm_meter.c,v
> retrieving revision 1.57
> diff -u -r1.57 vm_meter.c
> --- vm/vm_meter.c 2001/07/04 19:00:12 1.57
> +++ vm/vm_meter.c 2001/07/15 20:54:38
> +SYSINIT(loadav, SI_SUB_PSEUDO, SI_ORDER_ANY, loadav_init, NULL)
Not another SYSINIT (all SYSINITs are evil IMO). SI_SUB_PSEUDO is
bogus here -- there are no pseudo ttys here. sched_setup() is a
good place to do this initialization.
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