====== kern子树：内核核心信息及行为控制 ======

直辖变量：
||kern.acct_chkfreq|| ||
||kern.acct_configured|| ||
||kern.acct_resume|| ||
||kern.acct_suspend|| ||
||kern.acct_suspended|| ||
||kern.always_console_output|| ||
||kern.arandom|| ||
||kern.argmax|| ||
||kern.bootfile|| ||
||kern.boottime|| ||
||kern.ccpu|| ||
||kern.chroot_allow_open_directories|| ||
||kern.clockrate|| ||
||kern.consmsgbuf_size|| ||
||kern.consmute|| ||
||kern.console|| ||
||kern.constty_wakeups_per_second|| ||
||kern.coredump|| ||
||kern.corefile|| ||
||kern.cp_time|| ||
||kern.dirdelay|| ||
||kern.disks|| ||
||kern.domainname|| ||
||kern.drainwait|| ||
||kern.dummy|| ||
||kern.fallback_elf_brand|| ||
||kern.filedelay|| ||
||kern.forcesigexit|| ||
||kern.fscale|| ||
||kern.hostid|| ||
||kern.hostname|| ||
||kern.hostuuid|| ||
||kern.ident|| ||
||kern.init_path|| ||
||kern.init_shutdown_timeout|| ||
||kern.iov_max|| ||
||kern.job_control|| ||
||kern.kobj_methodcount|| ||
||kern.kq_calloutmax|| ||
||kern.kstack_pages|| ||
||kern.lastpid|| ||
||kern.log_console_output|| ||
||kern.log_wakeups_per_second|| ||
||kern.logsigexit|| ||
||kern.malloc_count|| ||
||kern.maxfiles|| ||
||kern.maxfilesperproc|| ||
||kern.maxproc|| ||
||kern.maxprocperuid|| ||
||kern.maxusers|| ||
||kern.maxvnodes|| ||
||kern.metadelay|| ||
||kern.minvnodes|| ||
||kern.module_path|| ||
||kern.msgbuf|| ||
||kern.msgbuf_clear|| ||
||kern.ngroups|| ||
||kern.nodump_coredump|| ||
||kern.nselcoll|| ||
||kern.openfiles|| ||
||kern.osreldate|| ||
||kern.osrelease|| ||
||kern.osrevision|| ||
||kern.ostype|| ||
||kern.posix1version|| ||
||kern.ps_arg_cache_limit|| ||
||kern.ps_strings|| ||
||kern.randompid|| ||
||kern.saved_ids|| ||
||kern.securelevel|| ||
||kern.stackprot|| ||
||kern.sugid_coredump|| ||
||kern.sync_on_panic|| ||
||kern.tty_nin|| ||
||kern.tty_nout|| ||
||kern.usrstack|| ||
||kern.version|| ||

子树：

  * [[doc:s:sysctl:kern.cam]]
  * [[doc:s:sysctl:kern.dcons]]
  * [[doc:s:sysctl:kern.devstat]]
  * [[doc:s:sysctl:kern.elf32]]
  * [[doc:s:sysctl:kern.elf64]]
  * [[doc:s:sysctl:kern.geom]]
  * [[doc:s:sysctl:kern.ipc]]
  * [[doc:s:sysctl:kern.ktrace]]
  * [[doc:s:sysctl:kern.random]]
  * [[doc:s:sysctl:kern.rpc]]
  * [[doc:s:sysctl:kern.sched]]
  * [[doc:s:sysctl:kern.shutdown]]
  * [[doc:s:sysctl:kern.sigqueue]]
  * [[doc:s:sysctl:kern.smp]]
  * [[doc:s:sysctl:kern.threads]]
  * [[doc:s:sysctl:kern.timecounter]]