Suggestions on Avoiding syscall Overhead

[Roman Divacky]

> I personally wouldn't even bother with a per-process readonly page,  
> or even a R/W page: the setproctitle bug you are trying to fix is  
> clearly in pgsql, and pgsql is the one that should be fixed instead  
> of adding a useless and potentially complex workaround.

speaking about that.. would it be that hard to implement changing of
the title using argv[0] as in SysV/Linux?