Re: system cache and buffer cache - Mailing list pgsql-hackers

Buffer cache is implemented using bufferpool right(I mean in the main 
memory).how about system cache? Can we control the size of system cache?

On Tue, 19 Sep 2006, Heikki Linnakangas wrote:

> System cache is a per-row cache of system catalog tables. It's used to speed 
> up lookup of things like function names. It's implemented in 
> src/backend/utils/cache/syscache.c
>
> Buffer cache is the cache managed by the buffer manager, that caches any 
> blocks from any relation used in the system. All access to relations go 
> through the buffer cache, using ReadBuffer/ReleaseBuffer (etc.) calls. It's 
> implemented in src/backend/storage/buffer/bufmgr.c
>
>

--  N Praveen Kumar Btech-IV CSE IIIT,Hyd AP,India
    Imagination is more important than knowledge...                                --Albert Einstein