How do I find my run queue?
In UNIX or Linux, the sar command is used to check the run queue. The vmstat UNIX or Linux command can also be used to determine the number of processes that are queued to run or waiting to run. These appear in the ‘r’ column.
What is Topas command in AIX?
The topas command collects a set of metrics from AIX® partitions that are running on the same hardware platform. Dedicated and shared partitions are displayed, and a set of aggregated values provide an overview of the entire hardware systems partition set.
What is CPU run queue?
CPU run queue length measures the average number of running and uninterrupted processes on the host during a given interval.
What are AIX threads?
As of AIX 4.3. 2, the default is to have one kernel thread mapped to eight user threads. This is tunable from within the application or through an environment variable. Depending on the type of application, the administrator can choose to use a different thread model.
What is job queue in operating system?
A job queue contains an ordered list of jobs waiting to be processed by a subsystem. The job queue is the first place that a submitted batch job goes before becoming active in a subsystem. The job is held here until a number of factors are met.
What is Topas command?
Description. The topas command reports selected statistics about the activity on the local system. The command uses the curses library to display its output in a format suitable for viewing on an 80×25 character-based display or in a window of at least the same size on a graphical display.
How do you stop nmon process?
To stop the nmon command from the command line, use the kill -USR2 with the nmon process ID. To print the background process IDs of the nmon recording, run the nmon command with the -p flag. The nmon tool disconnects from the shell during the recording, ensuring that the command continues running even if you log out.
What is vmstat command?
The vmstat command reports statistics about kernel threads in the run and wait queue, memory, paging, disks, interrupts, system calls, context switches, and CPU activity. The reported CPU activity is a percentage breakdown of user mode, system mode, idle time, and waits for disk I/O.
What is Linux queue?
Message queues allow one or more processes to write messages which will be read by one or more reading processes. Linux maintains a list of message queues, the msgque vector; each element of which points to a msqid_ds data structure which fully describes the message queue.