Re: Informix performance on 1, 2 or 4 processors??
Posted in 1997
Topics: Performance & Tuning
In article <5im68n$spr@chronicle.concentric.net>, kalyall@concentric.net' says... > >Please Help! I am getting conflicting answers. > >HP and Informix say performance on 2 processors (1 for OS & 1 for DB) >is fine. > >A user I know says they heard at an Informix Performance Seminar at >last summers World Wide Conference that performance on 2 processors is >a "real dog"!! This user says I should be on a 1 or 4 processor but >NOT 2 processors !!?? > >Comments, please. >Thanx in adv >Kerry >kalyall@cal-gold.com > there is no unique answer for the number of CPUs VPs in a system. My experience tells that depending of the tasks to perform you may add or nor CPU vps. The manual says to configure the system with 1 cpu less than the hardware but in ALPHA machines you may add CPUs until processors idle time go down to 20% (in peek usage time). - I've system with 3 x ALPHA 5/300 CPUs and a total of 12 CPUs VPs (in different Informix engines). Best regards