Tilbage til Sysadm
Sysstat
mpstat
(Global Average Activities by All CPUs.)
-P ALL
: (Indicate Processor Number)
-I
: print total number of interrupt statistics about per processor.)
-A
=
-u -I ALL -p ALL
) : display all information)
pidstat
(Process and Kernel Threads Statistics)
-p
: non-active tasks
-t
: display statistics of selected process
-rh
: memory utilization of processes which are frequently varying their utilization
-R
: realtime priority and scheduling information
sar
(System Activity Reporter)
-F
statistics about the mounted file systems
-q
run queue length, total number of processes and load average
-n DEV
network statistics
-d
block device statistics
-r
memory statistics
safd -d
(Extract sar data) f.eks. /var/log/sa/sa20140903 – -n DEV | grep -v lo