The memory utilization is dependent on the size of the database. Are you sure that the memory is not sitting in buffers/cache? Can you paste the output of free -m. Oracle and Sybase will consume as much memory as they are configured in the shared pool (we have some databases that use as little as 4gb, and the db that backs our order taking system uses up to 96GB). This will be reported as in use by the system, but will likely show up as buffered/cached in free, which means that memory is reserved but can be used by other processes if needed.
Justin On Wed, 25 Jun 2008 10:03 am, Yashpal Nagar wrote: > Hi All > > Recently I came across a problem, few of our Linux servers utilise > almost whole of the 12 GB physical RAM on servers hosting Sybase > databases. No matter whether the Sybase database utilization remains > at peak or low and/or we have multiple instances of Sybase or not, > but Memory utilization appears to be constantly high. > > What I wanted to know is a on a normal database servers Sybase or > Oracle, what kind of memory utilization on Linux as the OS, is > considered safe/good, to perform its best? Our system is running on a > SUSE eneterprise Linux 9 SP3 x86_64. > > I know there would be database level tunings also which makes lot of > the differences but assuming the database is tuned. > > Regards > Yash > > _______________________________________________ > ilugd mailinglist -- ilugd@lists.linux-delhi.org > http://frodo.hserus.net/mailman/listinfo/ilugd > Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi > http://www.mail-archive.com/ilugd@lists.linux-delhi.org/ _______________________________________________ ilugd mailinglist -- ilugd@lists.linux-delhi.org http://frodo.hserus.net/mailman/listinfo/ilugd Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/ilugd@lists.linux-delhi.org/
