Processes List

Compact view:

../_images/processlist.png

Full view:

../_images/processlist-wide.png

Filtered view:

../_images/processlist-filter.png

The process view consists of 3 parts:

  • Processes summary
  • Monitored processes list (optional)
  • Processes list

The processes summary line displays:

  • Tasks number (total number of processes)
  • Threads number
  • Running tasks number
  • Sleeping tasks number
  • Other tasks number (not running or sleeping)
  • Sort key

By default, or if you hit the a key, the processes list is automatically sorted by:

  • CPU: if there is no alert (default behavior)
  • CPU: if a CPU or LOAD alert is detected
  • MEM: if a memory alert is detected
  • DISK I/O: if a CPU iowait alert is detected

The number of processes in the list is adapted to the screen size.

Columns display

CPU%

% of CPU used by the process

If Irix/Solaris mode is off, the value is divided by logical core number

MEM% % of MEM used by the process
VIRT

Virtual Memory Size

The total amount of virtual memory used by the process.

It includes all code, data and shared libraries plus pages that have been swapped out and pages that have been mapped but not used.

RES

Resident Memory Size

The non-swapped physical memory a process is using (what’s currently in the physical memory).

PID Process ID
USER User ID
NI Nice level of the process
S

Process status

The status of the process:

  • R: running or runnable (on run queue)
  • S: interruptible sleep (waiting for an event)
  • D: uninterruptible sleep (usually I/O)
  • Z: defunct (“zombie”) process
  • T: traced/stopped by job control signal
  • X: dead (should never be seen)
TIME+ Cumulative CPU time used by the process
R/s Per process I/O read rate in B/s
W/s Per process I/O write rate in B/s
COMMAND

Process command line or command name

User can switch to the process name by pressing on the '/' key

Process filtering

It’s possible to filter the processes list using the ENTER key.

Filter syntax is the following (examples):

  • python: Filter processes name or command line starting with python (regexp)
  • .*python.*: Filter processes name or command line containing python (regexp)
  • username:nicolargo: Processes of nicolargo user (key:regexp)
  • cmdline:\/usr\/bin.*: Processes starting by /usr/bin

Extended info

../_images/processlist-top.png

In standalone mode, additional information are provided for the top process:

CPU affinity Number of cores used by the process
Memory info

Extended memory information about the process

For example, on Linux: swap, shared, text, lib, data and dirty

Open The number of threads, files and network sessions (TCP and UDP) used by the process
IO nice The process I/O niceness (priority)

The extended stats feature can be enabled using the --enable-process-extended option (command line) or the e key (curses interface).

Note

Limit values can be overwritten in the configuration file under the [process] section.