What is Release Time?
Release time is the timing instant on which a job becomes available for execution. A job can be scheduled and executed at any time at or after its release time. The execution of job starts only when processor provided its resource and dependency conditions are met.
Fig: Release vs. Response time
What is Response Time?
Response time is a timing interval on a job be completely processed. It is length of time from the release time of the job to the time instant when it completes. It is not the same with execution time, since a job may not execute continually.