Oninit cdi / Archive
Talk to an expert →

Solaris memory usage

Posted in 2003

Topics: Performance & Tuning, Stored Procedures & SPL, Platform-Specific Issues, Versions, Editions & End-of-Life

Dirk Moolman — — source: Usenet: comp.databases.informix

Can anyone tell me how much contiguous memory Solaris will allow Informix to use ? (Solaris 8, IDS 7.31 FD3) I remember a couple of years ago, working on AIX there was a limit on the memory usage, and memory in Unix would be split, which impacted on performance. Is this also the case in Solaris, what is the limit and are there any fixes like AIX had ? (they had a parameter that could be set to use more memory). Dirk Moolman Database and Unix Administrator MXGROUP Learn from the mistakes of others. You won't live long enough to make all of them yourself. sending to informix-list

↪ replying to Dirk Moolman
Obnoxio The Clown — — source: Usenet: comp.databases.informix

Dirk Moolman wrote: > Can anyone tell me how much contiguous memory Solaris will allow > Informix to use ? (Solaris 8, IDS 7.31 FD3) Yes, I'm sure they can. Somewhere around 4TB, IIRC. > I remember a couple of years ago, working on AIX there was a limit on > the memory usage, and memory in Unix would be split, which impacted on > performance. > > Is this also the case in Solaris, what is the limit and are there any > fixes like AIX had ? (they had a parameter that could be set to use more > memory). It's not a problem in Solaris. Your kernel may just need boosting to allow access to more shared memory. -- "C'est pas parce qu'on n'a rien ''' dire qu'il faut fermer sa gueule" - Coluche

↪ replying to Dirk Moolman
Art S. Kagel — — source: Usenet: comp.databases.informix

On Fri, 19 Dec 2003 05:08:44 -0500, Dirk Moolman wrote: IB the largest contiguous block is 4GB. Sun will let a 32bit application attach to about 3.2GB of shared memory segments. It will allow a 64bit app to attach to about 15.6GB of shared memory segments. Art S. Kagel > Can anyone tell me how much contiguous memory Solaris will allow Informix to > use ? (Solaris 8, IDS 7.31 FD3) > > > I remember a couple of years ago, working on AIX there was a limit on the > memory usage, and memory in Unix would be split, which impacted on > performance. > > Is this also the case in Solaris, what is the limit and are there any fixes > like AIX had ? (they had a parameter that could be set to use more memory). > > > > > > Dirk Moolman > Database and Unix Administrator > MXGROUP > > > Learn from the mistakes of others. You won't live long enough to make all of > them yourself. > > > sending to informix-list

Glossary