Re: System tuning

On Mon, 25 Mar 1996, tolly brumbelow wrote: > informix@asl3.asl-labs.bc.ca (Informix Sysadmin) wrote: > > I would get the unix admin. to check for paging and swapping. You may > have moved the io out of informix and put it on the os. As luck would have it....I _AM_ the UNIX sysadmin <grin>. The I/O is 100% raw disk, so the OS shouldn't be doing anything. > Informix 7.1 does take more system overhead than 5.x and with the > small amount of memory you have I am wondering about this. Is there any way to be able to say "We have X data points, in y tables, and z users" to know how much mem or CPU is good? > you may have overloaded the os when > you increased the buffers. I was afraid that this may have been possible, but it didn't appear to indicate that from it's behaviour. > Raid 5 cost you on performance if you have a high updated system Reads outnumber writes 28:1 Cheers, B. ------------------------------------------------------------------------- |Brian P. Hampson Internet : brian@asl-labs.bc.ca | |System Administrator, Air(2m/70cm): VE7NNW | |Analytical Service Labs Fidonet : Brian Hampson 1:153/733| |Vancouver, BC | |+604-253-4188 | | Specialists in Environmental Chemistry | | | ------------------http://www.asl-labs.bc.ca/-----------------------------