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2. Scheduling (computing) - Wikipedia

   en.wikipedia.org/wiki/Scheduling_(computing)

   The short-term scheduler (also known as the CPU scheduler) decides which of the ready, in-memory processes is to be executed (allocated a CPU) after a clock interrupt, an I/O interrupt, an operating system call or another form of signal. Thus the short-term scheduler makes scheduling decisions much more frequently than the long-term or mid-term ...

3. Fair-share scheduling - Wikipedia

   en.wikipedia.org/wiki/Fair-share_scheduling

   On the other hand, if a new user starts a process on the system, the scheduler will reapportion the available CPU cycles such that each user gets 20% of the whole (100% / 5 = 20%). Another layer of abstraction allows us to partition users into groups, and apply the fair share algorithm to the groups as well.

4. Round-robin scheduling - Wikipedia

   en.wikipedia.org/wiki/Round-robin_scheduling

   A Round Robin preemptive scheduling example with quantum=3. Round-robin (RR) is one of the algorithms employed by process and network schedulers in computing. [1] [2] As the term is generally used, time slices (also known as time quanta) [3] are assigned to each process in equal portions and in circular order, handling all processes without priority (also known as cyclic executive).

5. Completely Fair Scheduler - Wikipedia

   en.wikipedia.org/wiki/Completely_Fair_Scheduler

   The Completely Fair Scheduler (CFS) was a process scheduler that was merged into the 2.6.23 (October 2007) release of the Linux kernel. It was the default scheduler of the tasks of the SCHED_NORMAL class (i.e., tasks that have no real-time execution constraints) and handled CPU resource allocation for executing processes , aiming to maximize ...

6. Process (computing) - Wikipedia

   en.wikipedia.org/wiki/Process_(computing)

   First, the process is "created" by being loaded from a secondary storage device (hard disk drive, CD-ROM, etc.) into main memory. After that the process scheduler assigns it the "waiting" state. While the process is "waiting", it waits for the scheduler to do a so-called context switch. The context switch loads the process into the processor ...

7. Process management (computing) - Wikipedia

   en.wikipedia.org/wiki/Process_management_(computing)

   However, because each process consumes both CPU cycles and I/O cycles, the time which each process actually uses the CPU is a very small fraction of the total execution time for the process. So, for process i: t i (processor) ≪ t i (execution) where t i (processor) is the time process i spends using the CPU, and t i (execution) is the total ...