> Our evaluation result is as follows:
> Database size: 2GB
> WAL size (after 10hours pgbench run): 48.3GB
> gzipped size: 8.8GB
> removal of the physical log: 2.36GB
> fullpage_writes=off log size: 2.42GB

> I'm planning to do archive log size evalutation with other benchmarks 
> such as DBT-2 as well.

Looks promising :-) 

Did you use the standard 5 minute checkpoint_timeout?
Very nice would be a run with checkpoint_timeout increased
to 30 min, because that is what you would tune if you are concerned
about fullpage overhead.


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