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Linux Requires patched kernel Collects data on processes blocking, context switches, and execution time. This helps identify performance problems over multiple processes or threads. Superseded by LTTng. GPL LTTng (Linux Trace Toolkit Next Generation) Linux System software package for correlated tracing of kernel, applications and libraries.
The program produces an ordered list of running processes selected by user-specified criteria, and updates it periodically. Default ordering is by CPU usage, and only the top CPU consumers are shown. top shows how much processing power and memory are being used, as well as other information about the running processes.
It shows a frequently updated list of the processes running on a computer, normally ordered by the amount of CPU usage. Unlike top, htop provides a full list of processes running, instead of the top resource-consuming processes. htop uses color and gives visual information about processor, swap and memory status. htop can also display the ...
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$ mpstat Linux 2.4.21-32.ELsmp (linux00) 07/04/07 10:26:54 CPU % user %nice %system %iowait %irq %soft %idle intr/s 10:26:54 all 0.07 0.00 0.16 8.48 0.00 0.09 91.18 165.49 under Solaris 11: $ mpstat CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl 0 0 0 0 329 121 169 6 0 0 0 406 0 1 0 98
Usage of Last Branch Records, [7] a branch tracing implementation available in Intel CPUs since Pentium 4, is available as a patch. [6] Since version 3.14 of the Linux kernel mainline, released on March 31, 2014, perf also supports running average power limit (RAPL) for power consumption measurements, which is available as a feature of certain ...
%CPU: How much of the CPU the process is using %MEM: How much memory the process is using ADDR: Memory address of the process C or CP: CPU usage and scheduling information COMMAND* Name of the process, including arguments, if any NI: nice value F: Flags PID: Process ID number PPID: ID number of the process's parent process PRI: Priority of the ...
– Linux User Commands Manual: reports individual or combined processor related statistics. – Linux User Commands Manual: reports statistics for Linux tasks (processes) : I/O, CPU, memory, etc. – Linux User Commands Manual: reports input/output statistics for network filesystems (NFS).