From: Gregory Brown <gregory.t.brown@...>
Date: 2005-11-17T13:53:23+09:00
Subject: Re: Improving code...

On 11/16/05, Joe Van Dyk <joevandyk@gmail.com> wrote:

>   def cpu_percentage
>     # if we don't know the previous time, return 0.0
>     if @previous_cpu_time.nil? || @previous_time.nil?
>       @previous_cpu_time = get_process_cpu_time
>       @previous_time = Time.now

@previus_cpu_time ||= get_process_cpu_time
@previous_time ||= Time.now

That drops the conditional.