chrt: (man) add note about --sched-period lower limit

References: https://github.com/util-linux/util-linux/pull/2393
Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/schedutils/chrt.1.adoc b/schedutils/chrt.1.adoc
index 61af72380ec778cdf7acc20ed112817c123bc587..fdee4637acf06c6f6fb7ea831bb9f3ad5e65a09e 100644 (file)
--- a/schedutils/chrt.1.adoc
+++ b/schedutils/chrt.1.adoc
@@ -71,7 +71,7 @@ Set scheduling policy to *SCHED_DEADLINE* (sporadic task model deadline scheduli
 Specifies runtime parameter for *SCHED_DEADLINE* policy (Linux-specific).
 
 *-P*, *--sched-period* _nanoseconds_::
-Specifies period parameter for *SCHED_DEADLINE* policy (Linux-specific).
+Specifies period parameter for *SCHED_DEADLINE* policy (Linux-specific). Note that the kernel's lower limit is 100 milliseconds.
 
 *-D*, *--sched-deadline* _nanoseconds_::
 Specifies deadline parameter for *SCHED_DEADLINE* policy (Linux-specific).