There is only one way you will make progress on this: profile.

Profile a run on the AIX machine. Profile a run on the xeon machine.

Compare.

If you are unfamiliar with profiling, or want someone to cast a second pair of eyes over the output, and you could send me the block, line & sub .csvs produced (by NYTProf) for the main script plus the sources, I'd willingly take a look.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re: Multithreaded process on AIX slow by BrowserUk
in thread Multithreaded process on AIX slow by scunacc

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