On 2011-08-11, at 18:17 , Greg Smith wrote: > shared_buffers=512MB > wal_buffers=16MB > checkpoint_segments=64 Thanks for the advice. I tried these values... And it is even worse - went up to 63 minutes (from 60 minutes). Like I said this load is read mostly. My 80 / 20% might be a bit inaccurate, if so it could be more like 90% read and 10% write. I do not see any checkpoint warnings in my logs. I guess that means the OS cache is better for this particular use case than the postgresql cache? -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
