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update ustctl man page
[ust.git]
/
doc
/
man
/
ustctl.1.md
diff --git
a/doc/man/ustctl.1.md
b/doc/man/ustctl.1.md
index eefd89f114873a5c99d6e03ad341490948c2ca0b..208e1dd88c05b6fb01ff3f0e2de65a3919570852 100644
(file)
--- a/
doc/man/ustctl.1.md
+++ b/
doc/man/ustctl.1.md
@@
-60,6
+60,9
@@
starting with two dashes(`-'). A summary of options is included below.
* `--list-markers`:
List the markers of the process, their state and format string.
* `--list-markers`:
List the markers of the process, their state and format string.
+ * `--force-switch`:
+ Force a subbuffer switch. This will flush all the data currently held.
+
## LIFE CYCLE OF A TRACE
Typically, the first step is to enable markers with `--enable-marker`. An
## LIFE CYCLE OF A TRACE
Typically, the first step is to enable markers with `--enable-marker`. An
@@
-83,11
+86,14
@@
being recorded in the buffer. The daemon automatically collects these events.
The trace may be stopped with `--stop-trace`, either definitely after all the
wanted information is collected, or temporarily, before being started again
The trace may be stopped with `--stop-trace`, either definitely after all the
wanted information is collected, or temporarily, before being started again
-with `--start-trace`. This results in effectively "pausing" the recording.
+with `--start-trace`. This results in effectively 'pausing' the recording.
+After using `--stop-trace`, if a daemon is collecting the trace, it may not
+have flushed to the disk the full contents of the buffer yet.
Finally, when `--destroy-trace` is used, the trace buffers are unallocated.
However, the memory may not be effectively freed until the daemon finishes to
Finally, when `--destroy-trace` is used, the trace buffers are unallocated.
However, the memory may not be effectively freed until the daemon finishes to
-collect them.
+collect them. When the trace is being collected by `ustd`, this command
+guarantees its full contents is flushed to the disk.
## STRUCTURE OF A TRACE
## STRUCTURE OF A TRACE
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