Angela_Wilcox
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Why is nmon showing 8 CPU when I have 4 physical CPU and no partitions?
nmon when run on AIX 5.x is showing 8 CPU on a 4 way non partitioned box. Our 8 way is showing CPU of 16 when viewed with nmon. Can anyone explain to me why this is?
Is SMT on? Run "smtctl" to see if it is. What do the first 40 or so lines of "prtconf" say?
Yes, this is due to the SMT feature of the POWER5 chip, where each CPU (core) runs two processes at the same time.
ASKER
Could it also be a result of our 64 bit upgrade - which I did not know we had done??
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