Imai-san, On 2019/03/20 11:21, Imai, Yoshikazu wrote: > (4) > We expect the performance does not depend on the number of partitions after > applying all patches, if possible. > > num of part TPS > ----------- ----- > 1024 7,257 (7274, 7246, 7252) > 2048 6,718 (6627, 6780, 6747) > 4096 6,472 (6434, 6565, 6416) (quoted from above (3)'s results) > 8192 6,008 (6018, 5999, 6007) > > It seems the performance still depend on the number of partitions. At the > moment, I don't have any idea what cause this problem but can we improve this > more?
I've noticed [1] this kind of degradation when the server is built with Asserts enabled. Did you? Thanks, Amit [1] https://www.postgresql.org/message-id/a49372b6-c044-4ac8-84ea-90ad18b1770d%40lab.ntt.co.jp
