Re: HP K200 and Online 7

Jose da Fonseca <railit@icon.co.za> writes: > > We are experiencing SEVERE performance problems trying > to upgrade from Online 5 to Online 7. > Online 7 runs about 400 percent slower than Online 5 > <snip> > We are running an HP k200 (dual 100 mhz processors) with > about 560 Mb Memory. > We have about 260 users at any one time > (i.e) Bums in the seat). > The processors are not being over loaded, Memory is not > being grabbed, there is virtually no swapping. > Does the problem lie with Online 7.12 or with HP. > Online 5 on the same machine smokes !!!!!. One quick thing to check: With 2 processors, you should NOT configure Online to run in multiprocessor mode. Set your parameters to indicate you are on a single CPU machine and run only a single CPU VP. The overhead of coordinating multiple CPUs outweighs the advantages on a 2 CPU system. Gnerally the recommendations I have seen suggest configuring Informix as if you had one less CPU than you actually have. Other than that, there's lots of things to look at in terms of configuration parameters which just were not an issue in 5.x. I've never actually experience Informix on a K-class machine, but on other single CPU HP9000s I've seen, performance has been at least comparable to 5.x and in some cases MUCH better. HTH Irwin Goldstein Objective Software Systems, Inc.