Fix usage note on -a

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

diff --git a/doc/man/lttng.1 b/doc/man/lttng.1
index 8416f4c21604b5cf5a05d56f272d60ff101f151a..827c63c18132433028c7e165dcef400ed5736905 100644 (file)
--- a/doc/man/lttng.1
+++ b/doc/man/lttng.1
@@ -273,9 +273,11 @@ file.
 \-\-subbuf-size
         Subbuffer size in bytes (default: 4096, kernel default: 262144)
 \-\-num-subbuf
-        Number of subbufers (default: 8, kernel default: 4)
+        Number of subbufers (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
@@ -307,7 +309,7 @@ file.
 \-c, \-\-channel
         Apply on channel name
 \-a, \-\-all
-        Enable all tracepoints
+        Enable all tracepoints and syscalls
 \-k, \-\-kernel
         Apply for the kernel tracer
 \-u, \-\-userspace