Enable Plack with Koha and improve the performance

Plack is a performance booster for Perl web applications. Plack can enhance the speed of Koha while various operations. Plack requires Apache 2.4.10+ and can enable with Koha installed in Debian 8 (Jessie) / Ubuntu 16.04 LTS. 

Apply following commands after the installation of Koha:

sudo su

sudo koha-plack --enable library

sudo koha-plack --start  library

sudo service apache2 restart

Note: Plack creates cache for speed. Make sure the PC has good amount of RAM, if you are going to enable Plack.

References

https://wiki.koha-community.org/wiki/Plack

http://plackperl.org/

http://www.biblibre.com/en/blog/entry/plack-for-staff-interface-in-310-why-you-will-want-it