>> Instead, I suggest modifying BgBufferSync, specifically this part right >> here: >> >> else if (buffer_state & BUF_REUSABLE) >> reusable_buffers++; >> >> What I would suggest is that if the BUF_REUSABLE flag is set here, use >> that as the trigger to do StrategyMoveBufferToFreeListEnd(). > > I think at this point also we need to lock buffer header to check refcount > and usage_count before moving to freelist, or do you think it is not > required?
If BUF_REUSABLE is set, that means we just did exactly what you're saying. Why do it twice? -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
