diff --git a/man2/sched_setscheduler.2 b/man2/sched_setscheduler.2
index 5fef9a3ea..51e651030 100644
--- a/man2/sched_setscheduler.2
+++ b/man2/sched_setscheduler.2
@@ -453,6 +453,29 @@ and details vary across systems.
 For example, the Solaris 7 manual page says that
 the real or effective user ID of the calling process must
 match the real user ID or the save set-user-ID of the target process.
+
+.PP
+The scheduling policy and parameters are in fact per-thread
+attributes on Linux.
+The value returned from a call to
+.BR gettid (2)
+can be passed in the argument
+.IR pid .
+Specifying
+.I pid
+as 0 will operate on the attribute for the calling thread,
+and passing the value returned from a call to
+.BR getpid (2)
+will operate on the attribute for the main thread of the thread group.
+(If you are using the POSIX threads API, then use
+.BR pthread_setschedparam (3),
+.BR pthread_getschedparam (3),
+and
+.BR pthread_setschedprio (3),
+instead of the
+.BR sched_* (2)
+system calls.)
+
 .PP
 Originally, Standard Linux was intended as a general-purpose operating
 system being able to handle background processes, interactive