[Dovecot] testing needed: log file concurrency

[Jakob Hirsch]

Quoting Timo Sirainen:

> http://dovecot.org/tmp/concurrency.c
> 
> I'd want to know what results this program gives with different systems.
> Please test and reply (but don't bother if someone already replied with
> the same OS+result). I expect it to print:

Dual Pentium III 1133MHz: one "page size cut" every few minutes
Dual Xeon 2.40GHz (with HT -> 4 virtual CPUs): "page size cut"
immediatly and constantly.

Both on Linux 2.6.13.