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Merge remote-tracking branch 'stefanha/tracing' into staging

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Anthony Liguori 2011-11-01 13:08:33 -05:00
commit 0ffcb2ca8d
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docs/tracing.txt
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@ -132,12 +132,19 @@ This functionality is also provided through monitor commands:
means disabled.
* trace-event NAME on|off
Enable/disable a given trace event.
Enable/disable a given trace event or a group of events having common prefix
through wildcard.
The "-trace events=<file>" command line argument can be used to enable the
events listed in <file> from the very beginning of the program. This file must
contain one event name per line.
A basic wildcard matching is supported in both the monitor command "trace
-event" and the events list file. That means you can enable/disable the events
having a common prefix in a batch. For example, virtio-blk trace events could
be enabled using:
trace-event virtio_blk_* on
== Trace backends ==
The "tracetool" script automates tedious trace event code generation and also