#!/sbin/sysctl -f
#
# $NetBSD: sysctl.conf,v 1.8 2011/09/25 21:47:22 christos Exp $
#
# sysctl(8) variables to set at boot time.

# Default on panic: dump core and reboot. See savecore(8) for information.
# Switch this to 1 if you want to enter the kernel debugger on crashes
# instead. See ddb(4) for an introduction and also try the "help" command
# at the db> prompt.
# If you understand the implication and want to change the behaviour before
# /etc/rc.d/sysctl is run, use the kernel option DDB_ONPANIC, see options(4).
ddb.onpanic?=0

# Default core name template:
#kern.defcorename=%n.core

# Number of kernel threads to use for NFS client
#vfs.nfs.iothreads=4

# Default tty/pty character queue sizes. Should be bumped to 32K or so if
# used in networking (ppp/pppoe)
kern.tty.qsize=2048

# https://mail-index.netbsd.org/source-changes/2020/11/12/msg124114.html
kern.maxfiles=32768

# Do not prevent socket buffer autoscaling
kern.sofixedbuf=0

# http://gnats.netbsd.org/55800
net.inet.tcp.sack.enable=0

# Increase the size of the ephemeral port range
net.inet.ip.anonportmin=33792
net.inet.ip.anonportmax=62463
net.inet6.ip6.anonportmin=33792
net.inet6.ip6.anonportmax=62463

# Use a large window that grows quickly
# - RFC 6928 permits the extension of the initial window size to 10 segments.
# - By default NetBSD uses 4 segments as specified in RFC 3390.
net.inet.tcp.init_win=10
net.inet.tcp.init_win_local=10
net.inet.tcp.recvbuf_max=16777216
net.inet.tcp.recvbuf_inc=786432
net.inet.tcp.sendbuf_max=16777216
net.inet.tcp.sendbuf_inc=786432
kern.sbmax=67108864

# Increase IP queue length (check net.inet.ip.ifq.drops for drops)
net.inet.ip.ifq.maxlen=1024

# Disable ECN
net.inet.tcp.ecn.enable=0
net.inet.ipsec.ecn=0