Running sendmail (+ qpopper) on a SP-Cluster (AIX 4.3.2 - HACMP), we noticed that the
paging space in use grows about 100 KB per minute.
But the interesting part is that there is only a process (determined with svmon) which
uses pageing space. This process is "swapper" (pid == 0). And realmemory (vmtuned
to 20% for files) is not the problem, i.e. there is a lot of free real-memory and vmstat
shows no paging!!!)
svmon shows that the segment "work page table area" grows till about 32KB, creating
a new segment which then grows ... (we cannot find any process which owns this
segment ??? ).
After stopping all (mailserver-)processes, the allocated paging space still remains.
We have to reboot the machine to free up the paging space.
Is there anybody out there having similiar problems - advices are welcomed!