Re: SAme Aps on 2 Servers, different performance, help!

Posted in 1997

Snorri Bergmann — Thu, 30 Jan 1997 08:42:41 +0000 — source: Informix-list mailing list archive (1991-1998)

ccliu wrote: > > > Hi Net, > I have a very confusing situation regarding to performance for > two similar Database. > > Server 1: > HP-UX A.09.04 U 9000/887 > INFORMIX-OnLine Version 7.12.UC1X8 > 768 MB memory > > Server 2: > HP-UX B.10.01 U 9000/829 > INFORMIX-OnLine Version 7.13.UC1 > 384 MB memory > Make sure that Informix will only allocate one (I repeat one) virtual shared memory segment on the HP-UX 10.x. The problem is that HP-UX can only have 2 active shared memory segments per process, after that it has to move stuff in memory a lot; anyways, reducing the number of seg- ment to 1 put performance in a totally different ballpark for us. Try it. -Snorri -- Snorri Bergmann | Mail: snorri@strengur.is Strengur Consulting Engineers | WWW: http://www.strengur.is/ Armuli 7 | Phone: +354 550 9000 (9007 direct) 108 Reykjavik Iceland | Telefax: +354 550 9010