MULTIPROCESSOR OPTION 7.13

Posted in 1996

Allen Jantzen — Tue, 05 Nov 1996 20:31:44 GMT — source: Informix-list mailing list archive (1991-1998)

The Informix DSA Administrators Guide, version 7.1, page 10-18 says "On some two-processor computers, you should only run one CPU virtual processor because the overhead of synchronizing the two virtual processors offsets the benefit of distributing the processing" Of course, using one CPU virtual processor means that the MULTIPROCESSOR option should be set to zero, which means that I am telling Informix that I don't have more than one processor and am basically crippling my server software for parallelism/PDQ. So far, my tests have been fairly close either way. Can anyone provide any further insight into this? I am using an HP J200 with 2 100 MHZ PA-RISC processors and Informix DSA 7.13.UC1 Any assistance appreciated Allen Jantzen allenj@ndr.com