On Sat, Feb 5, 2011 at 12:46 AM, <da...@lang.hm> wrote: >> Actually for me the main "con" with streaming analyze is that it adds >> significant CPU burden to already not too fast load process. Especially if >> it's automatically done for any load operation performed (and I can't see >> how it can be enabled on some threshold). > > two thoughts > > 1. if it's a large enough load, itsn't it I/O bound?
Sometimes. Our COPY is not as cheap as we'd like it to be. > 2. this chould be done in a separate process/thread than the load itself, > that way the overhead of the load is just copying the data in memory to the > other process. I think that's more expensive than you're giving it credit for. But by all means implement it and post the patch if it works out...! -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
