![]() Less system-time is wasted by computing the next runnable process and the caches stayĪudio/video or other near-realtime applications may run with less skipping if set to Long-running, non-interactive tasks may benefit from SCHED_BATCH as timeslices are longer, ĭESCRIPTION schedtool can set all CPU scheduling parameters Linux is capable of or display information Using the pgrep command allows you to search for a specific process.NAME schedtool - query and set CPU scheduling parameters Use the following flags to interact with the atop command: -s: Show process scheduling information.-l: Show total values as average-per-second.Using the atop command with the following options changes the output format: ![]() CMD: The name of the command that started the process.CPU: The CPU percentage used by the process.CPUNR: The number of CPUs used by the process.S: The current status of the primary thread of the process.THR: The number of threads the process is using.EXC: The exit code after the process terminates.RUID: The real user ID of the user that started the process.RGROW: The amount of physical memory the process has occupied since the last output update.VGROW: The amount of virtual memory the process has occupied since the last output update.USRCPU: The CPU usage by the process while running in user mode.SYSCPU: The CPU usage by the process while system handling.The lower section lists currently running processes and contains the following categories: The heading section of the command output provides an overview of system resources, including process and performance-related statistics and memory, disk, and network usage. z: Change the output color to highlight running processes.r: Change the nice value (priority) of a process by providing the PID.k: Kill a process by providing the PID.d: Change the output refresh rate to a user-defined value (in seconds).While the top command is running, use the following options to interact with it or change the output format: COMMAND: The name of the command that started the process.S: The status of the process - R (running) or S (sleeping).SHR: The total shared memory used by the process.RES: The resident (physical) memory amount used by the process.VIRT: The virtual memory amount used by the process.NI: The nice value of the process, with negative numbers indicating higher priority.PR: The scheduling priority for the process.USER: The name of the user running the process.The top command output contains the following categories: The output of the top command updates in real time, with the three-second default refresh rate. -u: Define a user whose processes you want to list.u: Expand the output to include additional information, for example, CPU and memory usage.T: List all processes associated with this terminal.-j: Displays output in the jobs format. ![]()
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