Run queue

In modern computers many processes run at once. Active processes are placed in an array called a run queue, or runqueue. The run queue may contain priority values for each process, which will be used by the scheduler to determine which process to run next. To ensure each program has a fair share of resources, each one is run for some time period (quantum) before it is paused and placed back into the run queue. When a program is stopped to let another run, the program with the highest priority in the run queue is then allowed to execute.

Processes are also removed from the run queue when they ask to sleep, are waiting on a resource to become available, or have been terminated.

In the Linux operating system (prior to kernel 2.6.23), each CPU in the system is given a run queue, which maintains both an active and expired array of processes. Each array contains 140 (one for each priority level) pointers to doubly linked lists, which in turn reference all processes with the given priority. The scheduler selects the next process from the active array with highest priority. When a process' quantum expires, it is placed into the expired array with some priority. When the active array contains no more processes, the scheduler swaps the active and expired arrays, hence the name O(1) scheduler.

Run

Run(s) or RUN may refer to:

Sports and games, and general uses

Geography and topography

People

Run!

"Run!" is the fifteenth episode of the first season of the NBC science fiction drama series Heroes. Regular cast members Milo Ventimiglia (Peter Petrelli) and Santiago Cabrera (Isaac Mendez) do not appear in this episode.

Plot

Meredith calls and informs Nathan that their daughter Claire is still alive. Aware that the scandal could ruin his political future, Nathan gives Meredith $100,000 for her silence. Elsewhere, Mrs. Bennet's health deteriorates, causing the rift between Claire and Mr. Bennet, since she blames him for her mother's condition. He grounds her after learning she skipped school, prompting Claire to be more outraged. Claire later shows up at Meredith's trailer, hoping that her biological father could help Mrs. Bennet. Meredith tells Claire that he will only disappoint her, and Meredith herself is going back to Mexico. She takes a picture of Claire as remembrance, which she later shows to a visiting Nathan. Meredith offers to introduce them, but Nathan refuses - this crushes an eavesdropping Claire. Visibly upset, Nathan gets inside his limo and leaves. Claire hurls a stone at his rear window in anger.

Run (Amy Macdonald song)

"Run" is the fifth single to be released from Amy Macdonald's debut album, This Is the Life. The single was released in the UK on 3 March 2008 and peaked at #75 in the United Kingdom for 1 week. Macdonald stated on stage at T in the Park 2008 that the song was inspired by a gig by The Killers in her hometown of Glasgow.

Track listing

2-Track

Maxi (Germany)

Music video

The music video for "Run" features Macdonald walking through a forest at night.

Charts

Macdonald's single "Run" was released on 3 March and jumped in the top 75 at number 75,next week it was knocked out of the top 75. Run charted at #36 in Germany.

References

External links