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| -rw-r--r-- | share/man/man7/tuning.7 | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/share/man/man7/tuning.7 b/share/man/man7/tuning.7 index c03cce0aba0f..586b63c247a8 100644 --- a/share/man/man7/tuning.7 +++ b/share/man/man7/tuning.7 @@ -601,6 +601,32 @@ See the section in the .Xr sendfile 2 manual page for details. +.Sh SCHEDULERS +.Fx +allows having more than one scheduler specified in the kernel config, +and the desired scheduler selected from them at boot time. +Right now the options are: +.Bl -tag -width SCHED_4BSD +.It Cd SCHED_ULE +The modern scheduler with O(1) thread selection behavior. +.It Cd SCHED_4BSD +Classic scheduler inherited from 4.x BSD. +.El +.Pp +At least one option must be specified. +.Cd SCHED_ULE +is used by default if compiled in. +.Pp +The +.Va kern.sched.available +sysctl provides the comma-separated list of available (compiled in) +schedulers. +The +.Va kern.sched.name +loader tunable can be set to select the desired scheduler at boot time. +The +.Va kern.sched.name +sysctl reports which scheduler is used. .Sh KERNEL CONFIG TUNING There are a number of kernel options that you may have to fiddle with in a large-scale system. |