Hi!
The BIF statistics(wall_clock) returns the following tuple:
{Total_Wallclock_Time, Wallclock_Time_Since_Last_Call}.
But after less than 50 days of uptime (exact value is 2^32/(1000*60*60*24)),
Total_Wallclock_Time starts to count time from zero, which I believe is not
very suitable for most of long-lived tasks.
Erlang R10B, FreeBSD 5.2rc2, i386 architecture.