<span lang="en">In the design of traffic generators time measurement is very important. When a high rate is needed time lapses between packet sending are smaller. Because of this, the granularity of the system must be good. GNU/Linux has some tools that could be very useful to implement the measure of those time lapses. In order to choose the best solution, this paper studies the different tools that are provided by GNU/Linux. This study is aimed at the design of a kernel module that works as a traffic generator. In this paper is presented a solution that uses two kinds of tools, too. In this way, the performance of the generator is better.</span>