[ Home | About | Licence | About author | Contact ]
Written by Oleksandr Gavenko (AKA gavenkoa), compiled at 2015-10-05 from rev 764bb173578d.
OS resource statistics.¶
Contents
Process list.¶
Linux.¶
View current user process:
$ ps
View all running process:
$ ps -e
View process commands:
$ ps -e -o pid,cmd
Show processes with same substring in command:
$ pgrep -f $SUBSTR
$ pgrep -l -f $SUBSTR
$ pgrep -a -f $SUBSTR
View detail process info:
$ ps -f <id>
Kill process:
$ kill -s $SIG $PID
Kill processes with same name:
$ killall $NAME
Kill processes with same substring in command:
$ pkill -f $SUBSTR
View processes interactively:
$ htop
Use -w option for wide output. Use this option twice for unlimited width.
Run as another user:
$ su - $user
$ command
or:
$ sudo -u <user> -i <command>
FreeBSD.¶
View current user process:
$ ps
View all running process:
$ ps -ax
View detail process info:
$ ps -j <id>
$ ps -l <id>
Windows.¶
View all running process:
cmd> TaskList
Process Name PID Session Name #Session Memory
========================= ====== ================ ======== ============
System Idle Process 0 Console 0 28 KB
System 4 Console 0 236 KB
smss.exe 592 Console 0 432 KB
csrss.exe 656 Console 0 4 404 KB
winlogon.exe 680 Console 0 2 792 KB
services.exe 724 Console 0 3 260 KB
View processes interactively:
cmd> taskmgr
Kill process (TODO with which Windows version come?):
cmd> tskill {<pid>|<name>}
cmd> taskkill /IM notepad.exe
cmd> taskkill /PID 827
Run as another user:
$ runas /u: TODO XXX
CPU consumption.¶
Linux interactive.¶
$ top
$ dstat
Try press ‘s’ (strace), ‘l’ (lsof), ‘F5’ (tree view) in:
$ htop
http://htop.sourceforge.net/
home page
Linux static.¶
$ ps -eo %cpu,pid,cmd --sort=%cpu
FreeBSD interactive.¶
$ top
Solaris.¶
Interactive:
$ perfmeter
Static:
$ prstat
$ mpstat <num> <seconds>
See
- http://developers.sun.com/solaris/articles/prstat.html
- Topping top in Solaris 8 with prstat.
Memory consumption.¶
Linux interactive.¶
$ top
$ dstat
Linux static.¶
Vitual and resident memory size per process:
$ ps -eo vsz,rsz,pid,cmd --sort=vsz --width 3000
Swap size and usage:
$ free -t
total used free shared buffers cached
Mem: 1028732 91928 936804 0 5396 34936
-/+ buffers/cache: 51596 977136
Swap: 1048568 0 1048568
Total: 2077300 91928 1985372
$ vmstat
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 0 0 936804 5460 34936 0 0 21 5 363 29 0 0 99 0
System memory distribution:
$ cat /proc/meminfo
$ cat /proc/iomem
$ cat /proc/pagetypeinfo
$ cat /proc/buddyinfo
$ sudo cat /proc/slabinfo
$ sudo slabtop
Shared memory segments:
$ ipcs -m -p
Process memory map:
$ pmap -x $PID
$ pmap -XX $PID
FreeBSD interactive.¶
$ top
Power usage.¶
$ sudo powertop
Network activity.¶
$ ping $IP
$ traceroute $IP
$ mtr $IP
$ sudo bmon
$ sudo iftop -i wlan0
How many packets come through interface (size/type/source/destination):
$ sudo apt-get install netdiag
$ sudo trafshow
Network status.¶
$ ip link show
$ sudo ethtool eth0
Open ports.¶
$ nmap $IP
Opened file by process.¶
Windows interactive.¶
procexp.exe from Sysinternals.
Windows static.¶
handle.exe from Sysinternals:
cmd> handle -p 1265
C: File (RW-) C:\Program Files\Common Files\GTK\2.0\bin
288: Section \BaseNamedObjects\mmGlobalPnpInfo
Opened network connection by process.¶
Linux.¶
$ lsof -i[46][protocol][@{hostname|hostaddr}][:{service|port}]
$ netstat -p -l | grep $PORT
where [46] - IPV4 or IPV6, protocol - tcp, udp.
$ fuser $port/tcp
To kill precess by port number:
$ fuser -k $port/tcp # with SIGKILL
$ fuser -k -15 $port/tcp # with SIGTERM
$ fuser -k -TERM $port/tcp # with SIGTERM
Locked file by process.¶
Windows interactive.¶
procexp.exe from Sysinternals.
Windows static.¶
handle.exe from Sysinternals:
cmd> handle d:\home
ispell.exe pid: 244 784: D:\home\drivers\token_api\src
Far.exe pid: 432 10C: D:\home\drivers\token_api