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===== Performance =====

You can get performance info using the following commands (package "sysstat" must be installed!).

  mpstat
  iostat
  vmstat
  nfsiostat /hana/data/MHQ 1

See also http://cherry.world.edoors.com/CU0LauKNejGY for aditional info!

  sar
  
OR
  
  time dd if=/dev/sda of=/dev/null bs=1M count=1024

====sar====

  sar -f /var/log/sa/sa18             #show previous day(s)
  sar                                 #show today
  sar -P ALL                          #CPU
  sar -r                              #show RAM
  sar -q                              #load average
  sar -b                              #io
  sar -n DEV                          #network stats
  sar -q 1                            #Report queue length and load averages (realtime)
  sar -R 1                            #Report memory statistics (realtime)
  sar -B 1                            #Report paging statistics (realtime)
  sar -r
  sar -f /var/log/sa/sa26 -r | less
  sar -P ALL -f /var/log/sa/sa18 | less
  sar -r -s 10:00:00 -e 12:00:00
  
<code>
[root@testserver ~]# ls -l /var/log/sa/
total 8952
-rw-r--r--  1 root root 410352 May 18 23:50 sa18
-rw-r--r--  1 root root 410352 May 19 23:50 sa19
-rw-r--r--  1 root root 410352 May 20 23:50 sa20
-rw-r--r--  1 root root 410352 May 21 23:50 sa21
-rw-r--r--  1 root root 410352 May 22 23:50 sa22
-rw-r--r--  1 root root 410352 May 23 23:50 sa23
</code>  

https://www.thomas-krenn.com/de/wiki/Linux_Performance_Aufzeichnung_und_Auswertung_mit_sar

https://www.tmade.de/wiki/doku.php?id=linux:performance