Sentence:  The number of processed packets per round is limited in dependence of the page size. The processed packets are forwarded to a single queue and are processed for the time of two <WSD>jiffies</WSD>. 
Meaning of the word marked with <WSD> tags:  A unit of time defined by the frequency of its basic timer – historically, and by convention, 0.01 of a second, but some computer operating systems use other values.