On 08 October 2013 18:42 KONDO Mitsumasa wrote:
>(2013/10/08 20:13), Haribabu kommi wrote:
>> I will test with sync_commit=on mode and provide the test results.
>OK. Thanks!
Pgbench test results with synchronous_commit mode as on.
Thread-1 Threads-2
Head code FPW compress Head code FPW compress
Pgbench-org 5min 138(0.24GB) 131(0.04GB) 160(0.28GB) 163(0.05GB)
Pgbench-1000 5min 140(0.29GB) 128(0.03GB) 160(0.33GB) 162(0.02GB)
Pgbench-org 15min 141(0.59GB) 136(0.12GB) 160(0.65GB) 162(0.14GB)
Pgbench-1000 15min 138(0.81GB) 134(0.11GB) 159(0.92GB) 162(0.18GB)
Pgbench-org - original pgbench
Pgbench-1000 - changed pgbench with a record size of 1000.
5 min - pgbench test carried out for 5 min.
15 min - pgbench test carried out for 15 min.
From the above readings it is observed that,
1. There a performance dip in one thread test, the amount of dip reduces with the test run time.
2. More than 75% WAL reduction in all scenarios.
Please find the attached sheet for more details regarding machine and test configuration
Regards,
Hari babu.
