Test7

##Goals

In this test we compare the elapsed times of jobs, elapsed times of tasks, bytes processed and input records processed for tests Test6, Test3, Test4 and Test5.

##Setup Test6 is the case when there's not output Test3 is one output records for an input record Test4 is two output records for an input record Test5 is three output records for an input record

##Observations

The black picture shows the mean elapsed times for each job in the tests. The red picture shows the mean elapsed times for the tasks in each job in tests. We can see that the elapsed time is linear with the number of data that is written to the HDFS by the mappers. Also we can see that the mean of the job elapsed times for the tests grows faster than the mean for the tasks.