feat: tweak some VM arguments

From https://elixirforum.com/t/any-tips-on-tuning-the-beam-vm/51038
mbta · Oct 2, 2023 · 9fd66cb · 9fd66cb
1 parent e521099
commit 9fd66cb
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diff --git a/apps/health/config/config.exs b/apps/health/config/config.exs
@@ -10,4 +10,4 @@ config :health,
     Health.Checkers.Ports
   ]
 
-config :health, Health.Checkers.Ports, max_ports: 1000
+config :health, Health.Checkers.Ports, max_ports: 13000
diff --git a/rel/vm.args.eex b/rel/vm.args.eex
@@ -5,11 +5,23 @@
 ##+SDio 5
 
 ## Increase number of concurrent ports/sockets
-##+Q 65536
++Q 65536
 
 ## Tweak GC to run more often
 ##-env ERL_FULLSWEEP_AFTER 10
 
 -heart
 
 -smp auto
+
+## Enable kernel poll
++K true
+
+## Aysnc threads
++A 128
+
+## Something about scheduling
+## https://stressgrid.com/blog/beam_cpu_usage/
++sbwt none
++sbwtdcpu none
++sbwtdio none