===== Workers on odoo =====
==== Number of workers ====
Calculate workers amount:
<code>
Number of CPUs * 2 + 1
</code>

Example:
<code>
lscpu # 2*2+1 = 5 workers
</code>

==== Amount of memory ====
We will use 5 workers for calculation and 4GB RAM, 1GB RAM for OS and 3GB for odoo.

=== limit_memory_hard and limit_memory_hard ===
Calculate:
<code>
MB of RAM * workers * 1024 * 1024
</code>
Example:
<code>
1024MB * 5 * 1024 * 1024 = 5368709120
</code>

=== Total of ram to use ===
Calculate:
<code>
#worker * ( (light_worker_ratio * light_worker_ram_estimation) + (heavy_worker_ratio * heavy_worker_ram_estimation) )
</code>
Example for 3GB of RAM:
<code>
5 * ((0.5 * 150MB)+(0.5*1024MB)) = 3GB RAM
</code>
  * light_worker_ratio = 50% of processes are light
  * heavy_worker_ratio = 50% of processes are heavy

==== odoo.conf configuration ====
Before [options] section:
<code>
limit_memory_soft = 786432000
limit_memory_hard = 5368709120
limit_request = 8192
limit_time_cpu = 600
limit_time_real = 1200
max_cron_threads = 1
workers = 5
</code>

==== Libreoffice Calc calculator ====
A ugly but working calculator on libreoffice:
{{ ::calculadora_procesos_odoo.ods |}}
==== References ====
  * https://www.odoo.com/documentation/12.0/setup/deploy.html
  * https://www.odoo.com/documentation/12.0/reference/cmdline.html#reference-cmdline
  * https://www.rosehosting.com/blog/how-to-speed-up-odoo/