====== Tuning ======
===== Network =====
==== Test performance ====
  * Install iperf on client and host machine<code>sudo apt install iperf3 iotop</code>
  * Open firewall on host<code>ufw allow 5201</code>
  * Test network from client to host<code>iperf3 -s # on host
iperf3 -c <host> # on client</code>
  * Test disk access<code>iotop</code>

==== Speedtest ====
  * Remove speedtest-cli if you have previously installed it:<code>sudo apt remove speedtest-cli</code> 
  * Install python-pip on Python v3:<code>sudo apt install python3-pip</code>
  * Install and run speedtest:<code>sudo pip3 install speedtest_cli
speedtest-cli</code>

==== CPU and IO priorities ====
  * IO priority<code>ionice -c scheduling_class -n priority_nice_value command
ionice -c 3 cp /home/user/largefile /Backups</code>

==== Links ====
  * [[https://www.maketecheasier.com/manage-priority-io-processes-linux/|How to Manage the Priority of I/O Processes in Linux]]
  * [[http://manpages.ubuntu.com/manpages/bionic/man1/ionice.1.html|ionice]]
  * [[https://bugs.gentoo.org/show_bug.cgi?id=287840|Make samba run ioniced]]
  * [[https://serverfault.com/questions/55560/nice-rsync-on-remote-machine|Nice rsync on remote machine]]
  * [[https://www.ittsystems.com/network-throughput/|What is Network Throughput and How to Measure & Monitor it!]]
  * [[https://software.es.net/iperf/invoking.html|Invoking iperf3]]