top
Table of Contents
topE- Change memory scale of summarye- Change memory scale of tasksl- Load Averaget- Task/CPU Statsm- Memory info0- Toggle zeros1- Toggle single/separate CPU states2- NUMA-Nodes/CPU summary3- Expand-NUMA-NodeI- Toggle Irix modeforF- Fields menuX- Increase fix-widthL,&- Locate and find again<,>- Move sort columnR- Reverse sortH- ThreadsV- Forest viewc- Toggle command name/linei- Exclude Idle tasksS- Cumulative-time (CPU time is cumulated along children processes)J,j- Num/Str justifyx- Toggle highlight of sort fieldy- Toggle highlight of running tasksz- Toggle color/monob- Toggle bold/reverseu- Filter by effective userU- Filter by any usero,O- Other filter (ofor ignoring cases on values)^O- Show other filters (Ctrl + o)=,+- Reset filltering current / all windowsnor#- Set max tasks displayedC- Scroll coordinates by following arrow keysk- Kill a taskr- Renice a taskdors- Set update intervalSPC- Refresh immediatelyW- Write configuration fileY- Inspect other output for a processg- Choose another field groupA- Toggle Single / Multiple windowsa,w- Cycle through all four windows-(dash) - Show/Hide current window_(underscore) - All visiable/invisiable
top reference
top
top -b # Batch-mode (not refreshing, just append the output)
top -n <number> # Number of iterations. After refreshing number times, top exits.
top -p <pid> # Monitor PIDsE - Change memory scale of summary
MiB Mem : 3951.434 total, 2841.020 free, 592.242 used, 518.172 buff/cache
MiB Swap: 4092.996 total, 4092.996 free, 0.000 used. 3115.512 avail Mem
GiB Mem : 3.859 total, 2.774 free, 0.579 used, 0.506 buff/cache
GiB Swap: 3.997 total, 3.997 free, 0.000 used. 3.042 avail Mem
e - Change memory scale of tasks
1490 yeongho+ 20 0 1203.0m 162.8m 71.6m S 5.0 4.1 0:25.77 compiz
890 root 20 0 299.7m 69.7m 28.6m S 0.3 1.8 0:02.42 Xorg
1 root 20 0 117.1m 5.9m 3.9m S 0.0 0.1 0:00.94 systemd
2 root 20 0 0.0m 0.0m 0.0m S 0.0 0.0 0:00.00 kthreadd
1490 yeongho+ 20 0 1.175g 0.159g 0.070g S 6.7 4.1 0:26.55 compiz
890 root 20 0 0.293g 0.068g 0.028g S 0.7 1.8 0:02.47 Xorg
1 root 20 0 0.114g 0.006g 0.004g S 0.0 0.1 0:00.94 systemd
2 root 20 0 0.000g 0.000g 0.000g S 0.0 0.0 0:00.00 kthreadd
l - Load Average
top - 21:52:09 up 9 min, 2 users, load average: 0.02, 0.08, 0.07
t - Task/CPU Stats
Tasks: 175 total, 1 running, 174 sleeping, 0 stopped, 0 zombie
%Cpu(s): 3.7 us, 0.3 sy, 0.0 ni, 96.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu(s): 3.4/0.3 4[|||
m - Memory info
KiB Mem : 4046268 total, 2908216 free, 606148 used, 531904 buff/cache
KiB Swap: 4191228 total, 4191228 free, 0 used. 3190404 avail Mem
KiB Mem : 21.2/4046268 [|||||||||||||||||| ]
KiB Swap: 0.0/4191228 [ ]
0 - Toggle zeros
1857 yeongho+ 20 0 97496 3940 2944 S 0.3 0.1 0:00.91 sshd
2023 root 20 0 0 0 0 S 0.3 0.0 0:00.12 kworker/0:1
2034 yeongho+ 20 0 50264 4032 3308 R 0.3 0.1 0:00.26 top
890 root 20 0 306860 71340 29248 S 0.3 1.8 0:04.25 Xorg
1 root 20 0 119868 6080 4044 S 0.2 0:00.94 systemd
2 root 20 0 S kthreadd
1 - Toggle single/separate CPU states
%Cpu(s): 1.0 us, 0.2 sy, 0.0 ni, 98.8 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu0 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu1 : 0.3 us, 0.0 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu2 : 0.3 us, 0.0 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu3 : 1.3 us, 0.0 sy, 0.0 ni, 98.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
2 - NUMA-Nodes/CPU summary
%Cpu(s): 0.8 us, 0.1 sy, 0.0 ni, 99.2 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Node0 : 0.8 us, 0.1 sy, 0.0 ni, 99.2 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
3 - Expand-NUMA-Node
expand which node (0-0)
%Node0 : 0.8 us, 0.2 sy, 0.0 ni, 99.0 id, 0.0 wa, 0.0 hi, 0.1 si, 0.0 st
%Cpu0 : 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu1 : 1.0 us, 0.0 sy, 0.0 ni, 98.7 id, 0.0 wa, 0.0 hi, 0.3 si, 0.0 st
%Cpu2 : 0.7 us, 0.3 sy, 0.0 ni, 99.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu3 : 1.3 us, 0.3 sy, 0.0 ni, 98.3 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
I - Toggle Irix mode
if 'Irix mode' is Off, top will operate in 'Solaris mode' where a task's cpu usage will be divided by the total number of CPUs.
f or F - Fields menu
X - Increase fix-width
width incr is 0, change to (0 default, -1 auto) 10
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1632 yeongho+ 20 0 1328920 163696 73764 S 4.3 4.0 6:44.19 compiz
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1632 yeonghoey 20 0 1328920 163696 73764 S 4.3 4.0 6:45.42 compiz
L, & - Locate and find again
<, > - Move sort column
R - Reverse sort
H - Threads
V - Forest view
928 root 20 0 365900 7952 7092 S 0.0 0.2 0:00.02 `- lightdm
984 root 20 0 342396 71584 29188 S 0.3 1.8 0:30.51 `- Xorg
1239 root 20 0 228240 6252 5528 S 0.0 0.2 0:00.00 `- lightdm
1280 yeongho+ 20 0 54828 4936 3808 S 0.0 0.1 0:00.11 `- upstart
1393 yeongho+ 20 0 41208 284 12 S 0.0 0.0 0:00.00 `- upstart-udev-br
1401 yeongho+ 20 0 43620 4008 2748 S 0.0 0.1 0:00.29 `- dbus-daemon
1413 yeongho+ 20 0 94700 9288 8700 S 0.0 0.2 0:00.01 `- window-stack-br
1441 yeongho+ 20 0 49636 392 12 S 0.0 0.0 0:00.00 `- upstart-file-br
1442 yeongho+ 20 0 213536 6924 6192 S 0.0 0.2 0:00.01 `- gnome-keyring-d
1453 yeongho+ 20 0 41144 320 12 S 0.0 0.0 0:00.01 `- upstart-dbus-br
1458 yeongho+ 20 0 41144 324 12 S 0.0 0.0 0:00.04 `- upstart-dbus-br
1459 yeongho+ 20 0 174888 728 456 S 0.0 0.0 0:00.16 `- gpg-agent
c - Toggle command name/line
1632 yeongho+ 20 0 1328920 163696 73764 S 6.0 4.0 7:21.33 compiz
1743 yeongho+ 20 0 1313444 90980 25600 S 0.0 2.2 0:02.20 gnome-software
984 root 20 0 342396 71584 29188 S 0.0 1.8 0:31.45 Xorg
1632 yeongho+ 20 0 1328920 163696 73764 S 4.2 4.0 7:22.06 compiz
1743 yeongho+ 20 0 1313444 90980 25600 S 0.0 2.2 0:02.20 /usr/bin/gnome-software --gapplication-service
984 root 20 0 342396 71584 29188 S 0.3 1.8 0:31.50 /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth+
i - Exclude Idle tasks
S - Cumulative-time (CPU time is cumulated along children processes)
J, j - Num/Str justify
1 root 20 0 119916 6116 4028 S 0.2 0:01.01 systemd
2 root 20 0 S kthreadd
3 root 20 0 S ksoftirqd/0
1 root 20 0 119916 6116 4028 S 0.2 0:01.01 systemd
2 root 20 0 S kthreadd
3 root 20 0 S ksoftirqd/0
1 root 20 0 119916 6116 4028 S 0.2 0:01.01 systemd
2 root 20 0 S kthreadd
3 root 20 0 S ksoftirqd/0
5 root 0 -20 S kworker/0:0H
x - Toggle highlight of sort field
y - Toggle highlight of running tasks
z - Toggle color/mono
b - Toggle bold/reverse
u - Filter by effective user
U - Filter by any user
o, O - Other filter (o for ignoring cases on values)
add filter #1 (ignoring case) as: [!]FLD?VAL USER=yeonghoey
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1632 yeonghoey 20 0 1328920 163696 73764 S 4.7 4.0 7:58.95 compiz
984 root 20 0 342396 71584 29188 S 0.3 1.8 0:34.10 Xorg
1 root 20 0 119916 6116 4028 S 0.0 0.2 0:01.05 systemd
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1632 yeonghoey 20 0 1328920 163696 73764 S 3.0 4.0 8:00.66 compiz
2863 yeonghoey 20 0 50280 4172 3472 R 0.3 0.1 0:00.33 top
1267 yeonghoey 20 0 45360 4708 3816 S 0.0 0.1 0:00.00 systemd
^O - Show other filters (Ctrl + o)
=, + - Reset filltering current / all windows
n or # - Set max tasks displayed
Maximum tasks = 0, change to (0 is unlimited) 1
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1632 yeonghoey 20 0 1328920 163696 73764 S 4.3 4.0 8:05.90 compiz
2040 yeonghoey 20 0 527464 25956 22088 S 0.0 0.6 0:00.16 update-notifier
2081 yeonghoey 20 0 553132 29424 24780 S 0.0 0.7 0:00.17 unity-panel-ser
2863 yeonghoey 20 0 50280 4172 3472 R 0.0 0.1 0:00.36 top
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1632 yeonghoey 20 0 1328920 163696 73764 S 4.3 4.0 8:06.62 compiz
C - Scroll coordinates by following arrow keys
scroll coordinates: y = 17/206 (tasks), x = 1/12 (fields)
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
18 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 [kworker/1:0H]
19 root 20 0 0 0 0 S 0.0 0.0 0:00.00 [cpuhp/2]
scroll coordinates: y = 17/206 (tasks), x = 9/12 (fields)
%CPU %MEM TIME+ COMMAND
0.0 0.0 0:00.00 [kworker/1:0H]
0.0 0.0 0:00.00 [cpuhp/2]
k - Kill a task
PID to signal/kill [default pid = 1632]
r - Renice a task
PID to renice [default pid = 1632]
Renice PID 1632 to value
d or s - Set update interval
Change delay from 3.0 to
SPC - Refresh immediately
W - Write configuration file
Wrote configuration to '/home/yeonghoey/.toprc'
Y - Inspect other output for a process
inspect at PID [default pid = 1632]
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1632 yeonghoey 20 0 1328920 163696 73764 S 5.0 4.0 8:19.00 compiz
Inspection Pause at: pid 1632 running compiz as user yeonghoey
Use: left/right then <Enter> to select an option; 'q' or <Esc> to end !
Options: Open Files NUMA Info Log
g - Choose another field group
Choose field group (1 - 4) 4
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
PID PPID UID USER RUSER TTY TIME+ %CPU %MEM S COMMAND
A - Toggle Single / Multiple windows
