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authorLluís <xscript@gmx.net>2011-08-31 20:31:51 +0200
committerStefan Hajnoczi <stefanha@linux.vnet.ibm.com>2011-09-01 10:34:54 +0100
commit9a82b6a590bd7c845ab9754b34b33ffee982ccb2 (patch)
treec23b7078b7db55c798577eb28f281873a5d2062c /docs/tracing.txt
parent03727e6a06087dc8f46d5674b4b29262bf7377a4 (diff)
trace: [stderr] add support for dynamically enabling/disabling events
Uses the generic interface provided in "trace/control.h" in order to provide a programmatic interface as well as command line and monitor controls. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Diffstat (limited to 'docs/tracing.txt')
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1 files changed, 0 insertions, 5 deletions
diff --git a/docs/tracing.txt b/docs/tracing.txt
index d1d4e8cba2..4b27ab0c2a 100644
--- a/docs/tracing.txt
+++ b/docs/tracing.txt
@@ -178,11 +178,6 @@ effectively turns trace events into debug printfs.
This is the simplest backend and can be used together with existing code that
uses DPRINTF().
-Note that with this backend trace events cannot be programmatically
-enabled/disabled. Thus, in order to trim down the amount of output and the
-performance impact of tracing, you might want to add the "disable" property in
-the "trace-events" file for those events you are not interested in.
-
=== Simpletrace ===
The "simple" backend supports common use cases and comes as part of the QEMU