[Koha-bugs] [Bug 22417] Add a task queue

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=22417

--- Comment #329 from David Cook <dcook at prosentient.com.au> ---
Ok some numbers...

The Ubuntu 18.04 container running RabbitMQ 3.8.9 used 3x less CPU time while
idling compared to a Ubuntu 18.04 virtual machine running RabbitMQ 3.6.10.

The openSUSE Leap 15.1 virtual machine running RabbitMQ 3.7.14 used 2x less CPU
time while idling compared to the Ubuntu 18.04 container.

So, my recommendation would be the same as the people from RabbitMQ, and that
is that it would be best to install the latest version of RabbitMQ available,
as that's probably going to result in the best performance.

I don't feel like meddling with my Ubuntu 18.04 virtual machine today, but I
might have a look at that, although I'm not concerned with the small amount of
CPU usage/CPU time it's using, so I might not bother.

Watching the beam.smp process over time, even on the Ubuntu 18.04 virtual
machine, it's using a max of 2% CPU for fractions of a second every few
seconds. It's a small amount of CPU time over a fairly large amount of real
time.

It's not competing with other processes for CPU. It's not like a process that
is sitting constantly at 100% or even 50%.

That said, maybe I should have a look at koha-testing-docker one more time...

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