S.N. |
Long-Term Scheduler |
Short-Term Scheduler |
Medium-Term Scheduler |
It is a job scheduler |
It is a CPU scheduler |
It is a process swapping scheduler. |
Speed is lesser than short term scheduler |
Speed is fastest among other two |
Speed is in between both short and long term scheduler. |
It controls the degree of multiprogramming |
It provides lesser control over degree of multiprogramming |
It reduces the degree of multiprogramming. |
It is almost absent or minimal in time sharing system |
It is also minimal in time sharing system |
It is a part of Time sharing systems. |
It selects processes from pool and loads them into memory for execution |
It selects those processes which are ready to execute |
It can re-introduce the process into memory and execution can be continued. |