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-rw-r--r--sys/conf/NOTES7
1 files changed, 3 insertions, 4 deletions
diff --git a/sys/conf/NOTES b/sys/conf/NOTES
index 877dec98dfe4..1cf7f85fd11f 100644
--- a/sys/conf/NOTES
+++ b/sys/conf/NOTES
@@ -1237,10 +1237,9 @@ options CAPABILITY_MODE # sandboxes with no global namespace access
# CLOCK OPTIONS
# The granularity of operation is controlled by the kernel option HZ (default
-# 1000 or 1ms). Virtual machines guests default to an HZ value of 100. Lower
-# values produce less overhead at the expense of reduced accuracy in delivery of
-# kernel timeouts. With the adaptive tick code, lower values produce less
-# benefit than in the past.
+# frequency of 1000 Hz or a period 1ms between calls). Virtual machine guests
+# use a value of 100. Lower values may lower overhead at the expense of accuracy
+# of scheduling, though the adaptive tick code reduces that overhead.
options HZ=100