Re: Why several oninit processes in ver 6.0?

> > On 6 Jan 1995, Rajesh N. Malhotra wrote: > > > > > Informix Gurus, > > > > When we initialize Informix 6.0 using the oninit (or the tbinit) > > command, there are seven processes started. Any reason why so many? At > > present we are using Online 6.0 on a local machine only i.e the > > informix > > client is on the same machine as the Online engine. > > > OnLine ver 6.0 is a mulit-threaded engine. Each of the oninit process > you see is a VP class, (virtual process). That is, one for CPU VP, NET > VP, > MISC VP ... and so on. I think six or seven is the minimum number of VPs > or oinit that you can have. And of course, you can have more, in fact, > you > can dynamically increase the number of oninit process without shuting > down. > > > In the older version a single tbinit would be started. Also our > > application seems to be slower with ver 6.0. Has anyone noticed such a > > behaviour? > > > I haven't seen enough cases to comment on this. By default, pre-6.00 would always start 2 tbinit processes: one for the master daemon, and one for each page cleaner, for which the default is 1. If you've been running with zero page cleaners, you've been running with a pretty ropey config and should be shot by a firing squad if you had a hand in configuring it. (OK if you like drinking tea a lot. Sorry, I couldn't resist stealing that from the recent OS/2 warp commercials.) You should have 1 page cleaner per raw disk drive, BTW. The more raw disk drives, the better. Oh, and no RAID disks. Please. Purr-leeeeez. akent@cix.compulink.co.uk (Andy Kent) -------------------------------------