kern.ostype: Operating system type
kern.osrelease: Operating system release
kern.osrevision: Operating system revision
kern.version: Kernel version
kern.maxvnodes: Maximum number of vnodes
kern.maxproc: Maximum number of processes
kern.maxfiles: Maximum number of files
kern.argmax: Maximum bytes of argument to execve(2)
kern.securelevel: Current secure level
kern.hostname: Hostname
kern.hostid: Host ID
kern.clockrate: Rate and period of various kernel clocks
kern.proc.all: Return entire process table
kern.proc.pid: Process table
kern.proc.pgrp: Process table
kern.proc.tty: Process table
kern.proc.uid: Process table
kern.proc.ruid: Process table
kern.proc.args: Process argument list
kern.file: Entire file table
kern.posix1version: Version of POSIX attempting to comply to
kern.ngroups: Maximum number of groups a user can belong to
kern.job_control: Whether job control is available
kern.saved_ids: Whether saved set-group/user ID is available
kern.boottime: System boottime
kern.domainname: Name of the current YP/NIS domain
kern.osreldate: Operating system release date
kern.bootfile: Name of kernel file booted
kern.maxfilesperproc: Maximum files allowed open per process
kern.maxprocperuid: Maximum processes allowed per userid
kern.ipc.maxsockbuf: Maximum socket buffer size
kern.ipc.somaxconn: Maximum pending socket connection queue size
kern.ipc.nmbclusters: Maximum number of mbuf clusters available
kern.ipc.nmbufs: Maximum number of mbufs available
kern.ipc.nmbcnt: Number used to scale kmem_map to ensure sufficient space for counters
kern.ipc.nsfbufs: Maximum number of sendfile(2) sf_bufs available
kern.ipc.mbuf_wait: Sleep time of mbuf subsystem wait allocations during exhaustion
kern.ipc.mbuf_limit: Upper limit of number of mbufs allowed on each PCPU list
kern.ipc.clust_limit: Upper limit of number of mbuf clusters allowed on each PCPU list
kern.ipc.mbstat: Mbuf general information and statistics
kern.ipc.mb_statpcpu: Mbuf allocator per CPU statistics
kern.ipc.msqids: Message queue IDs
kern.ipc.numopensockets: Number of open sockets
kern.ipc.maxsockets: Maximum number of sockets avaliable
kern.logsigexit: Log processes quitting on abnormal signals to syslog(3)
kern.iov_max: Maximum number of elements in an I/O vector; sysconf(_SC_IOV_MAX)
kern.cam.scsi_delay: Delay to allow devices to settle after a SCSI bus reset (ms)
kern.cam.cd.changer.min_busy_seconds: Minimum changer scheduling quantum
kern.cam.cd.changer.max_busy_seconds: Maximum changer scheduling quantum
kern.cam.da.retry_count: Normal I/O retry count
kern.cam.da.default_timeout: Normal I/O timeout (in seconds)
kern.cam.da.no_6_byte: No 6 bytes commands
kern.random.sys.seeded: Seeded State
kern.random.sys.burst: Harvest Burst Size
kern.random.sys.harvest.ethernet: Harvest NIC entropy
kern.random.sys.harvest.point_to_point: Harvest serial net entropy
kern.random.sys.harvest.interrupt: Harvest IRQ entropy
kern.random.sys.harvest.swi: Harvest SWI entropy
kern.random.yarrow.gengateinterval: Generator Gate Interval
kern.random.yarrow.bins: Execution time tuner
kern.random.yarrow.fastthresh: Fast reseed threshold
kern.random.yarrow.slowthresh: Slow reseed threshold
kern.random.yarrow.slowoverthresh: Slow over-threshold reseed
kern.disks: names of available disks
kern.geom.confxml: Dump the GEOM config in XML
kern.geom.confdot: Dump the GEOM config in dot
kern.geom.conftxt: Dump the GEOM config in txt
kern.fallback_elf_brand: ELF brand of last resort
kern.init_path: Path used to search the init process
kern.acct_suspend: percentage of free disk space below which accounting stops
kern.acct_resume: percentage of free disk space above which accounting resumes
kern.acct_chkfreq: frequency for checking the free space
kern.cp_time: CPU time statistics
kern.devname: devname(3) handler
kern.openfiles: System-wide number of open files
kern.kq_calloutmax: Maximum number of callouts allocated for kqueue
kern.lastpid: Last used PID
kern.randompid: Random PID modulus
kern.ktrace.genio_size: Maximum size of genio event payload
kern.module_path: module load search path
kern.function_list: kernel function list
kern.malloc: Malloc Stats
kern.maxusers: Hint for kernel tuning
kern.sync_on_panic: Do a sync before rebooting from a panic
kern.sugid_coredump: Enable coredumping set user/group ID processes
kern.coredump: Enable/Disable coredumps
kern.corefile: process corefile name format string
kern.threads.debug: thread debug
kern.threads.max_threads_per_proc: Limit on threads per proc
kern.threads.max_groups_per_proc: Limit on thread groups per proc
kern.quantum: Roundrobin scheduling quantum in microseconds
kern.devstat.all: All devices in the devstat list
kern.devstat.numdevs: Number of devices in the devstat list
kern.devstat.generation: Devstat list generation
kern.devstat.version: Devstat list version number
kern.msgbuf: Contents of kernel message buffer
kern.msgbuf_clear: Clear kernel message buffer
kern.drainwait: Output drain timeout in seconds
kern.ttys: All ttys
kern.tty_nin: Total TTY in characters
kern.tty_nout: Total TTY out characters
kern.console: Console device control
kern.minvnodes: Minimum number of vnodes
vm.vmmeter: System virtual memory statistics
vm.loadavg: Machine loadaverage history
vm.pageout_algorithm: LRU page mgmt
vm.swap_enabled: Enable entire process swapout
vm.swap_async_max: Maximum running async swap ops
vm.dmmax: Maximum size of a swap block
vm.stats.sys.v_swtch: Context switches
vm.stats.sys.v_trap: Traps
vm.stats.sys.v_syscall: Syscalls
vm.stats.sys.v_intr: Hardware interrupts
vm.stats.sys.v_soft: Software interrupts
vm.stats.vm.v_vm_faults: VM faults
vm.stats.vm.v_cow_faults: COW faults
vm.stats.vm.v_cow_optim: Optimized COW faults
vm.stats.vm.v_zfod: Zero fill
vm.stats.vm.v_ozfod: Optimized zero fill
vm.stats.vm.v_swapin: Swapin operations
vm.stats.vm.v_swapout: Swapout operations
vm.stats.vm.v_swappgsin: Swapin pages
vm.stats.vm.v_swappgsout: Swapout pages
vm.stats.vm.v_vnodein: Vnodein operations
vm.stats.vm.v_vnodeout: Vnodeout operations
vm.stats.vm.v_vnodepgsin: Vnodein pages
vm.stats.vm.v_vnodepgsout: Vnodeout pages
vm.stats.vm.v_intrans: In transit page blocking
vm.stats.vm.v_reactivated: Reactivated pages
vm.stats.vm.v_pdwakeups: Pagedaemon wakeups
vm.stats.vm.v_pdpages: Pagedaemon page scans
vm.stats.vm.v_forks: Number of fork() calls
vm.stats.vm.v_vforks: Number of vfork() calls
vm.stats.vm.v_rforks: Number of rfork() calls
vm.stats.vm.v_kthreads: Number of fork() calls by kernel
vm.stats.vm.v_forkpages: VM pages affected by fork()
vm.stats.vm.v_vforkpages: VM pages affected by vfork()
vm.stats.vm.v_rforkpages: VM pages affected by rfork()
vm.stats.vm.v_kthreadpages: VM pages affected by fork() by kernel
vm.max_launder: Limit dirty flushes in pageout
vm.pageout_stats_max: Max pageout stats scan length
vm.pageout_full_stats_interval: Interval for full stats scan
vm.pageout_stats_interval: Interval for partial stats scan
vm.pageout_stats_free_max: Not implemented
vm.swap_idle_enabled: Allow swapout on idle criteria
vm.defer_swapspace_pageouts: Give preference to dirty pages in mem
vm.disable_swapspace_pageouts: Disallow swapout of dirty pages
vm.pageout_lock_miss: vget() lock misses during pageout
vm.nswapdev: Number of swap devices
vm.swap_info: Swap statistics by device
vm.zone: Zone Info
vm.kvm_size: Size of KVM
vm.kvm_free: Amount of KVM free
vfs.devfs.noverflow: Size of DEVFS overflow table
vfs.devfs.generation: DEVFS generation number
vfs.devfs.inodes: DEVFS inodes
vfs.devfs.topinode: DEVFS highest inode#
vfs.nfs.nfsstats: S,nfsstats
vfs.nfs.access_cache_timeout: NFS ACCESS cache timeout
vfs.nfs.nfsv3_commit_on_close: write+commit on close, else only write
vfs.ufs.dirhash_minsize: minimum directory size in bytes for which to use hashed lookup
vfs.ufs.dirhash_maxmem: maximum allowed dirhash memory usage
vfs.ufs.dirhash_mem: current dirhash memory usage
vfs.ufs.dirhash_docheck: enable extra sanity tests
vfs.pfs.vncache.entries: number of entries in the vnode cache
vfs.pfs.vncache.maxentries: highest number of entries in the vnode cache
vfs.pfs.vncache.hits: number of cache hits since initialization
vfs.pfs.vncache.misses: number of cache misses since initialization
vfs.vmiodirenable: Use the VM system for directory writes
vfs.runningbufspace: Amount of presently outstanding async buffer io
vfs.bufspace: KVA memory used for bufs
vfs.maxbufspace: Maximum allowed value of bufspace (including buf_daemon)
vfs.bufmallocspace: Amount of malloced memory for buffers
vfs.maxmallocbufspace: Maximum amount of malloced memory for buffers
vfs.lobufspace: Minimum amount of buffers we want to have
vfs.hibufspace: Maximum allowed value of bufspace (excluding buf_daemon)
vfs.bufreusecnt: Number of times we have reused a buffer
vfs.buffreekvacnt: Number of times we have freed the KVA space from some buffer
vfs.bufdefragcnt: Number of times we have had to repeat buffer allocation to defragment
vfs.lorunningspace: Minimum preferred space used for in-progress I/O
vfs.hirunningspace: Maximum amount of space to use for in-progress I/O
vfs.numdirtybuffers: Number of buffers that are dirty (has unwritten changes) at the moment
vfs.lodirtybuffers: How many buffers we want to have free before bufdaemon can sleep
vfs.hidirtybuffers: When the number of dirty buffers is considered severe
vfs.numfreebuffers: Number of free buffers
vfs.lofreebuffers: XXX Unused
vfs.hifreebuffers: XXX Complicatedly unused
vfs.getnewbufcalls: Number of calls to getnewbuf
vfs.getnewbufrestarts: Number of times getnewbuf has had to restart a buffer aquisition
vfs.flushwithdeps: Number of buffers flushed with dependecies that require rollbacks
vfs.cache.nchstats: VFS cache effectiveness statistics
vfs.write_behind: Cluster write-behind; 0: disable, 1: enable, 2: backed off
vfs.opv_numops: Maximum number of operations in vop_t vector
vfs.conflist: List of all configured filesystems
vfs.nfsrv.nfsrvstats: S,nfsrvstats
vfs.ffs.adjrefcnt: Adjust Inode Reference Count
vfs.ffs.adjblkcnt: Adjust Inode Used Blocks Count
vfs.ffs.freeblks: Free Range of Blocks
vfs.ffs.freedirs: Free Range of Directory Inodes
vfs.ffs.freefiles: Free Range of File Inodes
vfs.ffs.setflags: Change Filesystem Flags
net.local.stream.pcblist: List of active local stream sockets
net.local.dgram.pcblist: List of active local datagram sockets
net.inet.ip.forwarding: Enable IP forwarding between interfaces
net.inet.ip.redirect: Enable sending IP redirects
net.inet.ip.ttl: Maximum TTL on IP packets
net.inet.ip.rtexpire: Default expiration time on dynamically learned routes
net.inet.ip.rtminexpire: Minimum time to attempt to hold onto dynamically learned routes
net.inet.ip.rtmaxcache: Upper limit on dynamically learned routes
net.inet.ip.sourceroute: Enable forwarding source routed IP packets
net.inet.ip.intr_queue_maxlen: Maximum size of the IP input queue
net.inet.ip.intr_queue_drops: Number of packets dropped from the IP input queue
net.inet.ip.stats: IP statistics (struct ipstat, netinet/ip_var.h)
net.inet.ip.accept_sourceroute: Enable accepting source routed IP packets
net.inet.ip.fastforwarding: Enable flow-based IP forwarding
net.inet.ip.keepfaith: Enable packet capture for FAITH IPv4->IPv6 translater daemon
net.inet.ip.maxfragpackets: Maximum number of IPv4 fragment reassembly queue entries
net.inet.ip.sendsourcequench: Enable the transmission of source quench packets
net.inet.ip.check_interface: Verify packet arrives on correct interface
net.inet.ip.fw.enable: Enable ipfw
net.inet.ip.fw.autoinc_step: Rule number autincrement step
net.inet.ip.fw.one_pass: Only do a single pass through ipfw when using dummynet(4)
net.inet.ip.fw.debug: Enable printing of debug ip_fw statements
net.inet.ip.fw.verbose: Log matches to ipfw rules
net.inet.ip.fw.verbose_limit: Set upper limit of matches of ipfw rules logged
net.inet.ip.fw.dyn_buckets: Number of dyn. buckets
net.inet.ip.fw.curr_dyn_buckets: Current Number of dyn. buckets
net.inet.ip.fw.dyn_count: Number of dyn. rules
net.inet.ip.fw.dyn_max: Max number of dyn. rules
net.inet.ip.fw.static_count: Number of static rules
net.inet.ip.fw.dyn_ack_lifetime: Lifetime of dyn. rules for acks
net.inet.ip.fw.dyn_syn_lifetime: Lifetime of dyn. rules for syn
net.inet.ip.fw.dyn_fin_lifetime: Lifetime of dyn. rules for fin
net.inet.ip.fw.dyn_rst_lifetime: Lifetime of dyn. rules for rst