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Marcelo Pacheco
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I don't have a theory, because an AIX expert might have one rather than an OE expert. Try running the slow going process under strace/truss/tusc and find out which system calls are super slow (under load). Then open a support ticket with IBM asking them to analyze the performance issue. Back in 98/99 when I worked for PSC consulting, I came up with the idea for shared memory procedure libraries, and actually wrote the prototype for it. I don't know how much it much have changed over the years, but I don't see a reason to change this basic simplicity rule that OE doesn't do any locking whatsoever when mmap .pl files are used. The very fact that prolib itself is slow confirms it's not Progress's fault, but rather we're suffering from some OS performance issue instead. Marcelo Pacheco
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