cpuPercent

fndouble cpuPercent(Duration interval = Duration.init, bool perCpu = false) @safe

Gets CPU usage percentage.

`interval`	Duration to wait between measurements. If 0, returns instantaneous value.
`perCpu`	If true, returns percentage per CPU core. If false, returns total percentage.

CPU usage as a percentage (0.0 to 100.0).

Example:

auto percent = cpuPercent(1.seconds);
writeln("CPU usage: ", percent, "%");