cvs commit: src/sys/kern sched_4bsd.c
truckman at FreeBSD.org
Sat Jan 31 22:45:47 PST 2004
On 1 Feb, Bruce Evans wrote:
> On Sat, 31 Jan 2004, Don Lewis wrote:
>> I was suprised to find that processes in disk wait are no longer counted
>> towards the load average. This happened in rev 1.163 of kern_synch.c,
>> which was committed more than two years ago.
>> Even if CPU time is available, a machine with a lot of processes stuck
>> in disk wait is going to feel slow ...
> They were never counted AFAIK. Isn't this one of the main visible
> differences between BSD and Linux?
I think SunOS 4.x also counts this.
> Rev.1.163 ov kern_synch.c just moved
> stuff. The change before this in rev.1.59 of vm_meter.c is more likely
> to have changed this but was supposed to just remove dead code.
Yup, I missed the change in 1.59. I did a binary search to find the
version in vm_meter.c and found a slightly older version before the
SSLEEP code had been removed.
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