(2013/08/30 11:55), Fujii Masao wrote:
> * Benchmark
> pgbench -c 32 -j 4 -T 900 -M prepared
> scaling factor: 100
>
> checkpoint_segments = 1024
> checkpoint_timeout = 5min
> (every checkpoint during benchmark were triggered by checkpoint_timeout)
Did you execute munual checkpoint before starting benchmark?
We read only your message, it occuered three times checkpoint during benchmark.
But if you did not executed manual checkpoint, it would be different.
You had better clear this point for more transparent evaluation.
Regards,
--
Mitsumasa KONDO
NTT Open Software Center