I have server computer install Windows 2008R2, PostgreSQL 9.0.1 64 bit, 8G RAM, RAID 10 - 4 disks, dedicated server Here is config of postgresql.conf after running pgtune
default_statistics_target = 100 # pgtune wizard 2010-12-15 maintenance_work_mem = 480MB # pgtune wizard 2010-12-15 constraint_exclusion = on # pgtune wizard 2010-12-15 checkpoint_completion_target = 0.9 # pgtune wizard 2010-12-15 effective_cache_size = 2816MB # pgtune wizard 2010-12-15 work_mem = 8MB # pgtune wizard 2010-12-15 wal_buffers = 32MB # pgtune wizard 2010-12-15 checkpoint_segments = 64 # pgtune wizard 2010-12-15 shared_buffers = 960MB # pgtune wizard 2010-12-15 max_connections = 254 # pgtune wizard 2010-12-15 After running pgbench pgbench -i -h 127.0.0.1 -p 5433 -U postgres -s 10 pgbench pgbench -h 127.0.0.1 -p 5433 -U postgres -c 100 -t 10 -C -s 10 pgbench Scale option ignored, using pgbench_branches table count = 10 starting vacuum...end. transaction type: TPC-B (sort of) scaling factor: 10 query mode: simple number of clients: 100 number of threads: 1 number of transactions per client: 10 number of transactions actually processed: 1000/1000 tps = 20.143494 (including connections establishing) tps = 256.630260 (excluding connections establishing) Why pgbench on my server is very low or is it common value with my server ? Please help me. Thanks in advance. Tuan Hoang ANh.