"Jignesh K. Shah" <J.K.Shah@xxxxxxx> writes: > Note with this no think time concept, each clients can be about 75% CPU busy > from what I observed. running it I found the clients scaling up saturates at > about 60 now (compared to 500 from the original test). The peak throughput was > at about 50 users (using synchrnous_commit=off) So to get the maximum throughput on the benchmark with think times you want to aggregate the clients about 10:1 with a connection pooler or some middleware layer of some kind, it seems. It's still interesting to find the choke points for large numbers of connections. But I think not because it's limiting your benchmark results -- that would be better addressed by using fewer connections -- just for the sake of knowing where problems loom on the horizon. -- Gregory Stark EnterpriseDB http://www.enterprisedb.com Ask me about EnterpriseDB's PostGIS support!