1 files changed, 2 insertions, 1 deletions
diff --git a/stap.1.in b/stap.1.in
index 5f89c10e..02d6032f 100644
--- a/stap.1.in
+++ b/stap.1.in
@@ -140,7 +140,8 @@ Use the given name for the generated kernel object module, instead
 of a unique randomized name.
 .TP
 .BI \-o " FILE"
-Send standard output to named file.
+Send standard output to named file. In bulk mode, percpu files will
+start with FILE_ followed by the cpu number.
 .TP
 .BI \-c " CMD"
 Start the probes, run CMD, and exit when CMD finishes.