dear Gurus,
I have an AS 4100 5/466 3 CPUs 512 Mb RAM Dunix 4.0b
When a big (44% of memory) process is started the whole system has
problems.
There are 4 process having the most of the CPUs: One is the big I'm
talking about, three are normal sized process (7% MEM each)
It happens that the big process often goes into Uninterruptible sleeping state
and its CPU usage goes to 0% instead of 90%.
When it happens the system does'nt react to any command till the job
returns runnable. Not even pvis is able to collect the proper numbers
showing 0 for each value (CPU usage, swap, paging...).
Just now I noticed that even the small processes go into Uninterruptible sleeping state
and when it happens their CPU usage fall to very low percentages,
BUT the system does'nt hang!
I'm in the way to buy more RAM, but is there any chance that tuning the
kernel (in which way?) may solve or minimize the problem ?
Thanks to you and to the whole family of Alpha Managers,
Emanuele
--
Emanuele Lombardi
mail: AMB-GEM-CLIM ENEA Casaccia
I-00060 S.M. di Galeria (RM)
ITALY
mailto:lele_at_mantegna.casaccia.enea.it
tel +39 6 30483366
fax +39 6 30483591
Received on Thu Feb 26 1998 - 09:51:54 NZDT