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The cron command-line utility is a job scheduler on Unix-like operating systems.Users who set up and maintain software environments use cron to schedule jobs [1] (commands or shell scripts), also known as cron jobs, [2] [3] to run periodically at fixed times, dates, or intervals. [4]
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Most tasks [a] (directory listing, editing files, etc.) can easily be accomplished by letting the program take control of the terminal and returning control to the shell when the program exits – formally, by attaching to standard input and standard output to the shell, which reads or writes from the terminal, and catching signals sent from ...
Linux Mint 2.0 'Barbara' was the first version to use Ubuntu as its codebase and its GNOME interface. It had few users until the release of Linux Mint 3.0, 'Cassandra'. [14] [15] Linux Mint 2.0 was based on Ubuntu 6.10, [citation needed] using Ubuntu's package repositories and using it as a codebase. It then followed its own codebase, building ...
Pages in category "Linux process- and task-management-related software" The following 9 pages are in this category, out of 9 total. This list may not reflect recent changes .
The scheduler is an operating system module that selects the next jobs to be admitted into the system and the next process to run. Operating systems may feature up to three distinct scheduler types: a long-term scheduler (also known as an admission scheduler or high-level scheduler), a mid-term or medium-term scheduler, and a short-term scheduler.
Location of the "O(1) scheduler" (a process scheduler) in a simplified structure of the Linux kernel. An O(1) scheduler (pronounced "O of 1 scheduler", "Big O of 1 scheduler", or "constant time scheduler") is a kernel scheduling design that can schedule processes within a constant amount of time, regardless of how many processes are running on the operating system.
Hence such tasks do not get less processor time than the tasks that are constantly running. The complexity of the algorithm that inserts nodes into the cfs_rq runqueue of the CFS scheduler is O(log N), where N is the total number of entities. Choosing the next entity to run is made in constant time because the leftmost node is always cached.