Document that num-subbuf and subbuf-size need to be power of 2

[lttng-tools.git] / doc / man / lttng.1

diff --git a/doc/man/lttng.1 b/doc/man/lttng.1
index 8416f4c21604b5cf5a05d56f272d60ff101f151a..2445b05ac1f9106e2f4089f94441001513a26560 100644 (file)
--- a/doc/man/lttng.1
+++ b/doc/man/lttng.1
@@ -274,8 +274,10 @@ file.
         Subbuffer size in bytes (default: 4096, kernel default: 262144)
 \-\-num-subbuf
         Number of subbufers (default: 8, kernel default: 4)
+        Needs to be a power of 2 for kernel and ust tracers
 \-\-switch-timer
         Switch subbuffer timer interval in usec (default: 0)
+        Needs to be a power of 2 for kernel and ust tracers
 \-\-read-timer
         Read timer interval in usec (default: 200)
 .fi