X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=doc%2Fman%2Flttng.1;h=6f9540625f07d4cb662583048585efce4fc277ff;hp=ee0ce2bf2221f24ed67936ea5e626bad61618f09;hb=d73c58020df7ccd20d1edd250b0f00f0d7d25b5b;hpb=965444556d7b554bee46df96d7893d3d7518fa86 diff --git a/doc/man/lttng.1 b/doc/man/lttng.1 index ee0ce2bf2..6f9540625 100644 --- a/doc/man/lttng.1 +++ b/doc/man/lttng.1 @@ -255,12 +255,13 @@ Set the session in snapshot mode. Created in no-output mode and uses the URL, if one is specified, as the default snapshot output. Every channel will be set in overwrite mode and with mmap output (splice not supported). .TP -.BR "\-\-live USEC" +.BR "\-\-live [USEC]" Set the session exclusively in live mode. The paremeter is the delay in micro seconds before the data is flushed and streamed. The live mode allows you to stream the trace and view it while it's being recorded by any tracer. For that, you need a lttng-relayd and this session requires a network URL (\-U or -\-C/\-D). +\-C/\-D). If no USEC nor URL is provided, the default is to use a timer value +set to 1000000 and the network URL set to net://127.0.0.1. To read a live session, you can use babeltrace(1) or the live streaming protocol in doc/live-reading-protocol.txt. Here is an example: