Re: SHARED MEMORY

In article <4q9bj5$lg1@cssun.mathcs.emory.edu>, Billy Wheeler <billy.wheeler@pixie.co.za> writes >At 12:36 PM 6/19/96 -0700, Paul Middleton wrote: >>When doing kernel performance tuning for a Informix 5.0 system with 512MB >>memory and 50GB disk, should the the shared memory be included into the >>kernel parameter tuning or excluded. >> >>Watching the memory use with 'cpqmon' it appears that these calculations >>should be done excluding the shared memory. > >Well, there are kernel parameters for shared memory. I'm not quite sure I >follow the question... > >Hasta la vista! > >-- > >billy.wheeler@pixie.co.za > Which version of UNIX are you running and on what platform. Why are you performance tuning the UNIX kernel? Why not a) Look at the applications running and may sure they are using indicies? b) May sure you database is spread across several disks? c) Tuning your Informix server? UNIX kernel tuning maks very little difference unless you have tried all the other options first. -- David Williams