1: #!/bin/sh
2: #
3: # elwix sysctl.conf
4: #
5: # $Id: sysctl.conf,v 1.10 2021/03/11 13:59:50 misho Exp $
6:
7: sysctl -w kern.coredump=0
8: sysctl -w debug.debugger_on_panic=0
9: sysctl -w net.bpf.zerocopy_enable=1
10: sysctl -w net.bpf.optimize_writers=1
11: sysctl -w kern.ipc.somaxconn=1024
12: sysctl -w kern.eventtimer.periodic=1
13: sysctl -w net.route.netisr_maxqlen=2048
14: sysctl -w net.inet.ip.redirect=0
15: sysctl -w net.inet.ip.forwarding=1
16: sysctl -w net.inet.icmp.reply_from_interface=1
17: sysctl -w net.inet.tcp.rfc1323=1
18: sysctl -w net.inet.tcp.ecn.enable=1
19: sysctl -w net.inet6.ip6.forwarding=1
20: sysctl -w net.inet6.ip6.accept_rtadv=0
21: sysctl -w net.inet6.ip6.no_radr=0
22: sysctl -w kern.maxfilesperproc=4096
23: #sysctl -w kern.maxfiles=65536
24: #sysctl -w kern.ipc.maxsockets=65536
25: #sysctl -w kern.ipc.maxsockbuf=16777216
26: #sysctl -w kern.ipc.maxpipekva=16777216
27: #sysctl -w net.graph.maxdgram=131072
28: #sysctl -w net.graph.recvspace=131072
29: # Sendmsg() cat't send messages more than maxdgram length.
30: # Default value causes routing software to fail with OSPF if jumbo frames is turned on.
31: sysctl -w net.inet.raw.maxdgram=16384
32: sysctl -w net.inet.raw.recvspace=16384
33: # Current CPU can manage a lot's more of interrupts than default (1000)
34: # The 9000 value was found in /usr/src/sys/dev/ixgbe/README
35: sysctl -w hw.intr_storm_threshold=9000
36:
37: sysctl -w kern.random.harvest.mask=351
38:
39: # Improve a lot's the polling performance
40: # Enable idle_poll
41: #sysctl -w kern.polling.idle_poll=1
42: # The default value of 150 was for FastEthernet:
43: #sysctl -w kern.polling.burst_max=20000
44: #sysctl -w kern.polling.each_burst=50
45: # For a router, don't need to share 50/50 with user process
46: #sysctl -w kern.polling.user_frac=30
47:
48: #sysctl -w hw.ath.bstuck=8
49: #net.inet.tcp.mssdflt=1452
50: #net.inet.tcp.hostcache.expire=1
51: #dev.ath.0.hal.ar5416_biasadj=1
52:
53: #Power save: Disable power for device with no driver loaded
54: sysctl -w hw.pci.do_power_nodriver=3
55:
56: # blackhole(8)
57: # Disable this feature because prevent traceroute to works correctly
58: #sysctl -w net.inet.tcp.blackhole=2
59: #sysctl -w net.inet.udp.blackhole=1
60: # prevent users from seeing information about processes that
61: # are being run under another UID.
62: #sysctl -w security.bsd.see_other_uids=0
63: #sysctl -w security.bsd.see_other_gids=0
64: # Prevent some potential exploit
65: #sysctl -w security.bsd.unprivileged_proc_debug=0
66:
67: # Intel NIC tunning
68: #sysctl -w hw.em.rx_process_limit=-1
69: #sysctl -w hw.em.txd=2048
70: #sysctl -w hw.em.rxd=048
71:
72: #sysctl -w hw.igb.rx_process_limit=-1
73: #sysctl -w hw.igb.txd=2048
74: #sysctl -w hw.igb.rxd=048
75: #sysctl -w hw.igb.max_interrupt_rate=16000
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