Index: lib/libsys/sched_getcpu.3
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+.\" SPDX-License-Identifier: BSD-2-Clause
+.\"
+.\" Copyright (c) 2024 The FreeBSD Foundation
+.\"
+.\" This documentation was written by Ed Maste <emaste@FreeBSD.org>
+.\" under sponsorship from the FreeBSD Foundation.
+.\"
+.Dd November 12, 2024
+.Dt SCHED_GETCPU 3
+.Os
+.Sh NAME
+.Nm sched_getcpu
+.Nd get current CPU
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sched.h
+.Ft int
+.Fn sched_getcpu void
+.Sh DESCRIPTION
+The
+.Fn sched_getcpu
+function returns the current CPU on which the calling thread is running.
+.Sh RETURN VALUES
+.Fn sched_getcpu
+returns the 0-based index of the current CPU.
+It cannot fail.
+.\" .Sh SEE ALSO
+.Sh STANDARDS
+The
+.Nm
+function originated in Linux.
+This implementation aims to be source-compatible with the Linux implementation.
+.Sh HISTORY
+The
+.Nm
+function was introduced in
+.Fx 13.1 .