akkoma/rel/vm.args.eex
Erin Shepherd 7a0e27a746 Disable busy waits in the default OTP vm.args configuration.
This vastly reduces idle CPU usage, which should generally be beneficial
for most small-to-medium sized instances.

Additionally update the documentation to specify how to override the vm.args
file for OTP installs
2024-02-17 13:21:56 +01:00

18 lines
568 B
Elixir

## Customize flags given to the VM: http://erlang.org/doc/man/erl.html
## -mode/-name/-sname/-setcookie are configured via env vars, do not set them here
## Number of dirty schedulers doing IO work (file, sockets, etc)
##+SDio 5
## Increase number of concurrent ports/sockets
##+Q 65536
## Tweak GC to run more often
##-env ERL_FULLSWEEP_AFTER 10
## Disable busy waits; vastly reduces CPU usage while idle
## See https://docs.akkoma.dev/stable/configuration/optimisation/optimizing_beam/#virtual-machine-andor-few-cpu-cores
+sbwt none
+sbwtdcpu none
+sbwtdio none