While this thread didn't go anywhere (and other threads on the topic I can find also seem to go nowhere), it is at least similar to what I'm experiencing: https://community.freepbx.org/t/audio-drop-and-high-cpu/56785/
#Guests are running a per-minute cron simultaneously, bogging down the host and all other guests.
vocal meadow
loud belfry
FreePBX is a very very CPU-bound system, and it needs a lot of power to run it reliably. I used to manage such a server in a call center for customer support, and you will need almost a dedicated high performance capable server to run it reasonably well.
vocal meadow
Yeah, this is actually for my job. :p I work for a company that hosts FreePBX PBXs for people/businesses. I'm confident in the capability of the host hardware; it'd be no problem to run any of these PBXs individually. The issue only shows up when we get "too many" guests on a single host. Other than this particular issue, the host handles the guests just fine, so I feel like I should be fixing this particular thing rather than buying more/better hosts.
loud belfry
Well, details of specifics would be needed to be provided, and so far, you've provided the most minimal thing ever.
vocal meadow
I'm sorry you think so. I thought the question I was hoping for an answer to was apparent, but I've been in my own head about this all weekend, so I'm probably off. The solution as I understand it isn't related to any particular distro, hardware, configuration, or even cause. I'm hoping for an answer to:
"How do I de-synchronize frequent cronjobs on a bunch of virtual machines without modifying their system time?"
loud belfry
Good luck.
vocal meadow
Thanks for dropping by!
dreamy pebble
There's a reason why systemd timers exists, and it caters for scheduling of events that aren't tied to specific time of day.