Re: Tuning CPUVPS/AIOVPS

In article <32FFA371.749@cobe.com>, Edward Bidinotto <edbid@cobe.com> writes >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.. > Pity I'm at home and can't try it here - what does the output look like? I know it's a break down by VP but not the exact screen. >ONSTAT -g IOQ also only shows one line for AIO vp's when we have 7 >configured. > See here but I would have though there is only one queue for each class of VP which does I/O. onstat -g iov gives a break down per VP!. >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 -- David Williams