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vm.args
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# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
# Ensure that the Erlang VM listens on a known port
-kernel inet_dist_listen_min 9100
-kernel inet_dist_listen_max 9100
# Tell kernel and SASL not to log anything
-kernel error_logger silent
-sasl sasl_error_logger false
# This will toggle to true in Erlang 25+. However since we don't use global
# any longer, and have our own auto-connection module, we can keep the
# existing global behavior to avoid surprises. See
# https://github.com/erlang/otp/issues/6470#issuecomment-1337421210 for more
# information about possible increased coordination and messages being sent on
# disconnections when this setting is enabled.
#
-kernel prevent_overlapping_partitions false
# Increase the pool of dirty IO schedulers from 10 to 16
# Dirty IO schedulers are used for file IO.
+SDio 16
# Increase distribution buffer size from default of 1MB to 32MB. The default is
# usually a bit low on busy clusters. Has no effect for single-node setups.
# The unit is in kilobytes.
+zdbbl 32768
# When running on Docker, Kubernetes or an OS using CFS (Completely Fair
# Scheduler) with CPU quota limits set, disable busy waiting for schedulers to
# avoid busy waiting consuming too much of Erlang VM's CPU time-slice shares.
+sbwt none
+sbwtdcpu none
+sbwtdio none
# Comment this line out to enable the interactive Erlang shell on startup
+Bd -noinput