Praveen Kumar N wrote:
Buffer cache is implemented using bufferpool right(I mean in the main memory).
Yes. It's in shared memory, size is controlled by the shared_buffers configuration parameter.
how about system cache? Can we control the size of system cache?
It's in backend-private memory. I don't remember how it's sized. -- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match