Re: SHARED MEMORY
Posted in 1996
Topics: Performance & Tuning
Dear All, I quote from some e-mail from the person whose account was "borrowed" for the original post: >What the man means, _I think_, is: >There is ALL the memory available on the machine. >There is a quantity of memory used as SHARED memory. >Each user can have SOME memory. >When you are working out how big SOME memory can be, do you subtract the >amount of SHARED memory from ALL the memory and take what's left as a basis >for the calculations? >If you understand this, let me know, and explain it to me ;-) I've had a look at the site, and performance seems pretty good for 200 users on a SCO box.... :-) I'm not sure why the question was originally asked. At 11:10 PM 6/19/96 +0100, David Williams wrote: > Which version of UNIX are you running and on what platform. SCO on quad-processor pentium. > 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? More than you can shake a stick at. > c) Tuning your Informix server? Done that. > UNIX kernel tuning maks very little difference unless you have tried > all the other options first. Amen. Hasta la vista! -- billy.wheeler@pixie.co.za