CPU times overflows ?

[gmircea]

What happens if the vars that stores the Core.user, Core.nice, Core.system etc overflow ? The values are larger than int64 ? I guess you could get some large values on a long running system.
When doing the diff between new_CPU and old_CPU you'll get funny results...
Or even when computing CPU total in Core::cpuTotal().
Or am I missing something ?

[lightful]

The counters represent 1/100ths of a second, so the computer should run for 3000 million years to overflow them. Even by then, the relative deltas could still be Ok due to how integers work, but that doesn't deserves a test...

Bits are not so small, an almost "perfect" clock would only need 256 bits :-)