pgbench performance is lagging compared to Linux and DragonflyBSD?

[Wojciech Puchar]

> defaults) is sysctl/tunable variables set in the *BSD OSes (on DFly,
> FreeBSD, and NetBSD). Unfortunately (based on my experience) FreeBSD could
> be a lot better when it comes to defaults, and more tuning is required to

actually FreeBSD defaults are actually good for COMMON usage. and can be 
tuned.

default MAXBSIZE is one exception.