Yes, i tried with pg_buffercache, it is giving the information on the hit ratio of shared_buffers. Can we get the dynamic information like in oracle(v$) views. Same as in postgresql buffers(shared,temp,wal) & cache(maintainence_work_me, effective_mem).
> raghavendra t wrote: >> Hi All, >> >> Could please guide me in knowing the Dynamic Catalog views which will >> tell about the Buffers and Cache information using System Catalogs. >> > > you mean, stuff like > http://www.postgresql.org/docs/current/static/catalog-pg-statistic.html ? > > afaik, data about whats in the cache and buffers is not accessible via > any pg_catalog schema tables.
It's not accessible by default, but there is contrib package called 'pg_buffercache':
