Re: 2 shared memory segments

From: fitr0912@my-deja.com > >When I start up informix I get the following message in the online log. > > Could not create single shared memory segment with resident and >non-resident par >titions. Proceeding to create 2 shared memory segments instead. > >The following are some my onconfig parameters > > LOCKS 1000000 > BUFFERS 150000 > SHMVIRTSIZE 900000> >I am running 11.0 HP-UX, Informix 7.24.uc4x1. The server has over 3gb of >memory. Any ideas on how I can get rid of these messages? If I can't get >rid of the messages, are they bad? They are not bad. But if you can, try to size the initial virtual + resident portion to be *exactly* 1GB. That way, you get both the initial virtual and resident portion in one segment. This can help performance, and offers you the opportunity of adding one more virtual segment. Just remember to alter your kernel config to allow a single shared memory segment to be at least 1 GB. HTH. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

In article <828709$ntd$1@news.xmission.com>, "Obnoxio The Clown" <obnoxio@hotmail.com> wrote: > > From: fitr0912@my-deja.com > > > >When I start up informix I get the following message in the online log. > > > > Could not create single shared memory segment with resident and > >non-resident par > >titions. Proceeding to create 2 shared memory segments instead. > > > >The following are some my onconfig parameters > > > > LOCKS 1000000 > > BUFFERS 150000 > > SHMVIRTSIZE 900000> > > >I am running 11.0 HP-UX, Informix 7.24.uc4x1. The server has over 3gb of > >memory. Any ideas on how I can get rid of these messages? If I can't get > >rid of the messages, are they bad? > > They are not bad. But if you can, try to size the initial virtual + resident > portion to be *exactly* 1GB. It's not absolutely right. It's correct only in case when you use shm_magic in other case you have 1Gb-(HP-UX shared libraries) in third quadrant and 0.75Gb in forth quadrant and you never have *exactly* 1GB ;-) Regards, Eugene >That way, you get both the initial virtual and > resident portion in one segment. This can help performance, and offers you > the opportunity of adding one more virtual segment. > > Just remember to alter your kernel config to allow a single shared memory > segment to be at least 1 GB. > > HTH. > > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com > Sent via Deja.com http://www.deja.com/ Before you buy.