Linux Top command analysis

Linux Top command analysis LinuxTop interface Linux interface detailed explanation: the content displayed in the first line is the same as the uptime Command, [l] can show and hide this area: top is meaningless, it is just a name and the current time of the system at 01:47:56 is www.2cto. comup1... linux Top command analysis Linux Top interface
Linux:
The content displayed in the first line is the same as that in the uptime Command. [l] can display and hide this area: top is meaningless, it's just a name, but at 01:47:56 the current system time www.2cto.com up how long has the system been started 2 users current 2 users online load average: 0.00, 0.00, 0.00 The second line of CPU load information about the system for 1 minute, 5 minutes, and 15 minutes is "jobs. 38 total: There are 38 tasks, that is, 38 processes. 1 running 1 process is running 37 sleeping 37 process sleep 0 stopped stop process count 0 zombie stiff process count Cpu (s) this line shows the CPU overall information 0.0% us user-mode process CPU usage percentage, does not contain the CPU usage time of a task with a negative renice value. 0.7% sy kernel CPU usage percentage 0.0% ni renice value is the CPU usage percentage of user-state processes of negative tasks. Nice means 99.3% id idle CPU time percentage 0.0% wa CPU time percentage waiting for I/O 0.0% hi CPU hard interrupt time percentage 0.0% si CPU soft interrupt time percentage 0.0% st www.2cto.com Third row: men memory means 256412 k total physical memory total 30156 k used physical memory used 226256 free idle physical memory 8176 k buffers used as Kernel Cache physical memory Swap space 337356 k total the total number of swap areas 0 k used the number of swap areas used 337356 k free the number of swap areas 12160 k cached the total number of swap areas fourth row: priority of the PID process's IDUSER process owner PR process, the smaller the value, the higher the priority is given to the state of the shared memory S process used by the SHR process, which is occupied by virtual memory RES processes that execute the NI nice value VIRT process. S indicates sleep, R indicates running, and Z indicates frozen, N indicates that the process priority value is negative % CPU usage by the CPU process % MEM the percentage of physical memory and total memory used by the process + the total CPU usage after the process is started, that is, the cumulative value of the CPU usage time. COMMAND process startup COMMAND name top COMMAND operation www.2cto.com q exit top COMMAND immediate refresh s set refresh interval c show COMMAND full mode t show or hide process and CPU status information m show or hide memory status information l display or hide uptime information f increase or decrease process Display Flag S accumulative mode, the CPU time occupied by completed or exited sub-processes will be accumulated to the primary process's MITE + P by % CPU usage ranking T by MITE + ranking M by % MEM ranking u specified to display the user process r modify process renice value k kill process I only display running process W save the top settings to the file ~ /. Toprc. the setting of the toprc file will be automatically called at the next startup. H help command. Author: initphp