From: Philippe Proulx Date: Thu, 12 Mar 2015 03:29:08 +0000 (-0400) Subject: taking-a-snapshot: x-ref channel modes X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=6d30cd92b72a789ccdd2c881271dd4e51441a862;p=lttng-docs.git taking-a-snapshot: x-ref channel modes Signed-off-by: Philippe Proulx --- diff --git a/contents/using-lttng/controlling-tracing/taking-a-snapshot.md b/contents/using-lttng/controlling-tracing/taking-a-snapshot.md index fd6ef22..c7565d8 100644 --- a/contents/using-lttng/controlling-tracing/taking-a-snapshot.md +++ b/contents/using-lttng/controlling-tracing/taking-a-snapshot.md @@ -29,8 +29,10 @@ lttng create --snapshot my-snapshot-session Next, enable channels, events and add context to channels as usual. Once a tracing session is created in snapshot mode, channels will be -forced to use the overwrite mode (`--overwrite` option of the -`enable-channel` command) and have an `mmap()` channel type +forced to use the +[overwrite](#doc-channel-overwrite-mode-vs-discard-mode) mode +(`--overwrite` option of the `enable-channel` command; also called +_flight recorder mode_) and have an `mmap()` channel type (`--output mmap`). Start tracing. When you're ready to take a snapshot, do: