On Tue, May 03, 2016 at 05:54:29AM +0800, Yuyang Du wrote: > In sched average update, a period is about 1ms, so a 32-bit unsigned > integer can approximately hold a maximum of 49 (=2^32/1000/3600/24) > days, which means it is big enough and 64-bit is needless.
This fails to explain _why_ 49 days is enough. And what the 49 days is enough for. What happens when a task sleeps for more than 49 days?
