Re: Read Cache, NUMCPUVPS

jeff.w.mcclure@ameritech.com wrote: > > Hi, > > I'm relatively new to Informix and have two > questions that I need answers to. > > Sparc 20 running Solaris 2.4 > Informix ODS 7.11.UC1 > > First: > I checked the instance profile last night (onstat -p) > and all looked great. dskreads, pagreads were both > very low, Buffreads was very high (2 billion and some). > My cache ratio was 99.99%. > > Looked at the same stats this afternoon... Cache ratio > is 0%! Buffreads is a negative 2+ billion (-2051413361). Probably your statistics have overflowed. Zero them out with onstat -z and observe again. > > Second: > Since this is a development machine, we decided to bounce > the instance. Great! I wanted to check out the effects > of adding a second cpu vp. This is a multiprocessor (2) > machine! I set NUMCPUVPS to 2, MULTIPROCESSOR to 1, and > SINGLE_CPU_VP to 0. When I tried to bring it back on-line > it dies. online.log shows... > "listener thread: err = -25572: Network driver cannot > bind a name to the port." It then PANICs and the log shows > "cannot wake idle processor." Configure NUMCPUVPS to one less than the number of physical processors you have. Neil Truby Chase Manhattan Bank Bournemouth, UK neil.truby@chase.com