ca.portal.admin

Re: IDMS R17 with zIIP processors

Discussion created by ca.portal.admin on Jan 20, 2009
I'm running benchmarks at the moment. It doesn't look good so far.=20

IDMS is indeed using a lot of ZIIP processing resulting in a reported
reduction in CPU time on the main processor. However in terms of
throughput my benchmarks are giving me almost 50% performance
degradation.

Example: 1,000,000 records read from a fully buffered area with existing
system (No ZIIP) I get 21,000 records per second. With ZIIP turned on my
reported CPU is down to about a third but my records per second is
12,000.

I'm running further benchmarks with I/O intensive jobs and mixed loads.
Results available soon.

Chris Trayler =20

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