2020-04-11 00:46:09 -07:00
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# Copyright (c) 2018-2019, diyIT.org
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2020-02-25 11:28:31 -08:00
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# All rights reserved.
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#
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# BSD 2-Clause License ("Simplified BSD License" or "FreeBSD License")
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# https://diyit.org/license/
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#
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#
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autoboot_delay="4"
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# If the machine dies at boot before /etc/rc.d/sysctl is run, let the user do something.
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debug.debugger_on_panic=1
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debug.ddb.textdump.pending=1
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security.bsd.allow_destructive_dtrace=0
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# Drive Labels. A diskid or gptid is a long, unique string assigned to drives
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# which we find are difficult to relate to. We prefer to disable diskid's and
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# gptid's and use GPT Labels, like gpt/disk0, or the raw device names, like
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# nvd0p2 for the first NVMe drive, second partition. Use "glabel status" to
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# display a map of GPT Labels to raw device names in order to identify the
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# physical drive location. When adding new drives, try to use gpt labels
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# instead of raw device names in case the drives move to different SATA, SAS or
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# SCSI interface ports.
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kern.geom.label.disk_ident.enable="0"
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kern.geom.label.gptid.enable="0"
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# Increase dmesg buffer to fit longer boot output.
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kern.msgbufsize="524288"
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2021-04-18 01:07:42 -07:00
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kern.ipc.maxmbufmem=150608778240
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2020-04-11 00:46:09 -07:00
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kern.racct.enable=1
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2020-02-25 11:28:31 -08:00
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# ZFS root boot config
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zfs_load="YES"
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vfs.root.mountfrom="zfs:zroot/ROOT/default"
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ipmi_load="YES"
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aesni_load="YES"
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# thermal sensors for intel
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coretemp_load="YES"
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#tmpfs_load="YES" # interferes with jails
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if_lagg_load="YES"
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if_tap_load="YES"
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hw.em.rx_process_limit="-1"
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hw.em.max_interrupt_rate="16000"
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# hostcache cache limit is the number of ip addresses in the hostcache list.
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# Setting the value to zero(0) stops any ip address connection information from
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# being cached
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# net.inet.tcp.hostcache.cachelimit=0
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# we are on a stable network
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# disable net.inet.tcp.soreceive_stream when using
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# rndc to update BIND DNS records otherwise the following error will trigger,
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# "rndc: recv failed: host unreachable".
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# DNS TCP Transfers do not work with this enabled.
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# net.inet.tcp.soreceive_stream=1
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# https://lists.freebsd.org/pipermail/freebsd-net/2014-April/038470.html
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net.isr.bindthreads=1
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net.isr.maxthreads=-1
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net.link.ifqmaxlen=2048
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net.isr.defaultqlimit=2048
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net.isr.maxqlimit=98304
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# also disabed in BIOS
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machdep.hyperthreading_allowed="0"
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# RACK TCP Stack: Netflix's TCP Recent ACKnowledgment (Recent ACK) and Tail
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# Loss Probe (TLP) for improved Retransmit TimeOut response.
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tcp_rack_load="YES"
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# https://labs.ripe.net/Members/gih/bbr-tcp
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cc_cubic_load="YES"
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# https://savagedlight.me/2015/08/23/eli5-freebsd-accept-filters/
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accf_data_load="YES"
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# Wait for full DNS request accept filter (unbound)
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accf_dns_load="YES"
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accf_http_load="YES"
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net.inet.tcp.syncache.hashsize="1024"
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net.inet.tcp.syncache.bucketlimit="100"
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# ZFS: the maximum upper limit of RAM used for dirty, "modified", uncommitted
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# data which cannot be exceed.
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vfs.zfs.dirty_data_max_max=12884901888
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vfs.zfs.vdev.cache.size=134217728
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vfs.zfs.vdev.cache.max=134217728
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# https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=185487
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2021-04-18 01:07:42 -07:00
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# https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=210686
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2020-02-25 11:28:31 -08:00
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# https://forums.freebsd.org/threads/updating-bsd-from-10-to-11-ahci-ssd-issue.59923/
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# https://lists.freebsd.org/pipermail/freebsd-bugs/2013-April/052301.html
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# my 8TB's don't support NCQ TRIM
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vfs.unmapped_buf_allowed=0
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