Yes, 'sar' was what I first reached for, realizing that it is far better to compactly collect all of the performance data so that after the fact you can view slices of it this way and that to try to figure out what the matter is...
$ sar
ksh: sar: not found
$ ls -l /var/adm
ls: adm: Permission denied
$ ls -ld /var/adm
drwxr-x--- 3 root wheel 512 Jan 22 2001 /var/adm/
$
And I'm certainly not 'root' nor in 'wheel'. (:
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