SCHED_ULE and loadavg() results

Hi,

following up on recent statements regarding loadavg() calculation:
I currently have a machine compiling a make release, using SCHED_ULE.

I use WORLDARGS='-j4' and have observed the following:
* During compilation loads gets up to 15 and stays there, but I feel this has 
been "set in motion" by top(1). The buildprocess already was an hour or 2 on 
it's way (set it up remotely) and the first time I ran top, the load was 
three. I quit top, and monitored slowly by calling uptime(1) about every 
minute manually (to avoid sleep()), but the load still went up.
* changing top's refresh frequency to 5, had no impact whatsoever - load still 
goes up, finally changed it to 1 and kept monitoring.
* during 'install' stage load went down to appr. 0.62 and kept lurking between 
0.62 and 1.20, still with many make(10 and sh(1) processes, but no compilers.
* during kernel build stage load went quickly up to 3 and 5, with less 
compilers this time.
* it's now building ports and balancing between 1.10 and 3.50.

I've used this machine more often lately to build dists, but never saw the 
load come above 6, using SCHED_4BSD. Last time was about 1,5 weeks ago.

Kernel config and dmesg attached.
Full command is:
nohup make release BUILDNAME=5.2-idgnl-CURRENT \
CHROOTDIR=/webdocs/scratch/CURRENT \
CVSROOT=/home/ncvs DOC_LANG=en_US.ISO8859-1 -DMAKEISOS \
RELEASEDIRFILES=/usr/ports/distfiles WORLD_FLAGS=-j4 \
KERNELS='DBSERVER SERVER3' -DNOPORTREADMES &

-- 
Melvyn

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FreeBSD sarevok.idg.nl 5.2-CURRENT FreeBSD 5.2-CURRENT #0: Wed Jan 28 18:01:18 
CET 2004     
root_at_sarevok.lan.webteckies.org:/usr/obj/usr/src/sys/SAREVOK_NOAPM_NODEBUG  
i386
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