You can notice changes in TOTAL_CPU_TIME, TOTAL_ACT_TIME, ACT_COMPLETED_TOTAL, TOTAL_WAIT_TIME and CLIENT_IDLE_WAIT_TIME
columns.
In general, this is how monitoring is done using table functions. You get the results from table functions, run some workload and then get the results again and analyze the difference. We will see how this task can be drastically simplyfied using views in Technology Explorer in next few pages.