On Wed, Oct 10, 2012 at 5:12 PM, Strahinja Kustudić <strahinjak@xxxxxxxxxxx> wrote: > @Claudio So you are basically saying that if I have set effective_cache_size > to 10GB and I have 10 concurrent processes which are using 10 different > indices which are for example 2GB, it would be better to set the > effective_cache size to 1GB? Since if I leave it at 10GB each running > process query planner will think the whole index is in cache and that won't > be true? Did I get that right? Yep. You might get away with setting 2GB, if you're willing to bet there won't be 100% concurrency. But the safest setting would be 1G. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
