I have been getting different feedback on the above topic.
Issues : Should we use HP UX Buffer cache on the system
running ORACLE applications.
Understand the HP Buffer cache is not likely to improve
I/O for Oracle data blocks, since SGA does the same function.
I was also told by ORACLE, that in some cases the HP Buffer
cache may even degrade performance for ORACLE in some cases.
My understanding is that HP Unix uses buffer cache to
improve I/O performance, independent of what applications
you run. Although SGA may do a similiar function, it does
hand it over to the UNIX at some point of time.
I am currently using 30% of memory (512M) for buffer cache.
Does anyone know the optimum value, or say that we don't
need to use the Buffer cache.
Our configuration.
HP K210 , 512MB RAM / 40GB disk
HP UX 10.01,
Oracle 7.x
