Setting the Number of Front-end Workers

You can override the number of workers launched for the web interface. Increasing the number of workers allows for increased concurrent performance, but imposes greater load on the front-end machine.

You can set the number of workers using the Frontend workers setting in the Settings→General→Backend page. If the variable is not set, the number of workers defaults to (number of CPU threads x 2) + 1.

note

You can determine the number of CPU threads by running:

$ lscpu | grep -E '^Thread|^Core|^Socket|^CPU(s)'

For example, on a machine with 16 cores and 2 threads per core, the default number of frontend workers is:

16 x 2 + 1 = 33