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-rw-r--r--src/iperf3.18
1 files changed, 8 insertions, 0 deletions
diff --git a/src/iperf3.1 b/src/iperf3.1
index aad6997..97d66ed 100644
--- a/src/iperf3.1
+++ b/src/iperf3.1
@@ -153,6 +153,14 @@ send output to a log file.
force flushing output at every interval.
Used to avoid buffering when sending output to pipe.
.TP
+.BR --timestamps " [\fIformat\fR]"
+prepend a timestamp at the start of each output line.
+By default, timestamps have the format emitted by
+.BR ctime ( 1 ).
+Optionally, a format specification can be passed to customize the
+timestamps, see
+.BR strftime ( 3 ).
+.TP
.BR -d ", " --debug " "
emit debugging output.
Primarily (perhaps exclusively) of use to developers.