Monitored the thing all day, taking the CPU usage (via a WRKACTJOB) and
the current heap size and heap-in-use (via option 5 of a WRKJVMJOB)
every 15 minutes.
Heap size was 4925.375M (out of a maximum of 5120M) at 08:45, and the OS
took heap away over the course of the day, until it was down to 4352.0M
at 17:30. Heap in use fluctuated; from 11:45 to 13:00 it steadily
climbed from 2575.382M to 3668.079M, then by 13:30 it had dropped to
2169.834M. Job CPU hit 35.5% at 09:00; that was the highest I saw it all
day.
That climb to 3668.079M peak (and I think it went higher, but not on the
quarter-hour) had me wondering if I was going to witness a crash.
--
JHHL
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