Tuning CPUVPS/AIOVPS

Posted in 1997

Edward Bidinotto — Mon, 10 Feb 1997 15:38:41 -0700 — source: Informix-list mailing list archive (1991-1998)

On 7.11 if you run ONSTAT -G SCH What does the busy waits column mean? Is 0 a good number for AIO or CPU VP's? Does it mean that there are sufficent AIO or CPU vp's and nothing is waiting or is it just the opposite saying that all of the VP's are being used up and you need more? ONSTAT -g IOV also has some information about AIO vp's that I am trying to figure out how it corelates to the onstat -g sch.. ONSTAT -g IOQ also only shows one line for AIO vp's when we have 7 configured. We are having some performance problems and are looking at whether or not and how much to increase or decrease these parameters. Any discussion would be appreciated. Tks in advance... Ed

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