Difference between revisions of "Resource Monitoring Tools"
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# iotop -o | # iotop -o | ||
only flag will show active processes only | only flag will show active processes only | ||
| − | # iotop -d 0.01 | + | # iotop -d 0.01 or -d 0.1 |
delay flag can be set to be faster than 1 second. Some writes are missed otherwise. | delay flag can be set to be faster than 1 second. Some writes are missed otherwise. | ||
Revision as of 03:50, 29 September 2020
There are programs available to watch various aspects of your system.
iftop
See active internet connections. e.g.
# iftop -i eth1
Will show you websites that don't close a connection, when the tab is left open. A privacy and security nightmare. This is a reason why Javascript is bad.
vmstat
See RAM usage. Can be watched, to monitor swapping. e.g.
$ vmstat 3
Leave it running. It will update every 3 seconds.
iotop
See HDD accesses. e.g.
# iotop --only # iotop -o
only flag will show active processes only
# iotop -d 0.01 or -d 0.1
delay flag can be set to be faster than 1 second. Some writes are missed otherwise.
Monitor Library Reads from PID
$ ltrace -p -pidhere-
See what a program is doing. (Note: not available on ARM deb repos)
