summaryrefslogtreecommitdiff
path: root/tools/perf/Documentation/itrace.txt
diff options
context:
space:
mode:
Diffstat (limited to 'tools/perf/Documentation/itrace.txt')
-rw-r--r--tools/perf/Documentation/itrace.txt9
1 files changed, 7 insertions, 2 deletions
diff --git a/tools/perf/Documentation/itrace.txt b/tools/perf/Documentation/itrace.txt
index c52755481e2f..40476b227f8d 100644
--- a/tools/perf/Documentation/itrace.txt
+++ b/tools/perf/Documentation/itrace.txt
@@ -1,5 +1,6 @@
i synthesize instructions events
- b synthesize branches events (branch misses for Arm SPE)
+ y synthesize cycles events
+ b synthesize branches events
c synthesize branches events (calls only)
r synthesize branches events (returns only)
x synthesize transactions events
@@ -7,6 +8,8 @@
p synthesize power events (incl. PSB events for Intel PT)
o synthesize other events recorded due to the use
of aux-output (refer to perf record)
+ I synthesize interrupt or similar (asynchronous) events
+ (e.g. Intel PT Event Trace)
e synthesize error events
d create a debug log
f synthesize first level cache events
@@ -22,8 +25,9 @@
q quicker (less detailed) decoding
A approximate IPC
Z prefer to ignore timestamps (so-called "timeless" decoding)
+ T use the timestamp trace as kernel time
- The default is all events i.e. the same as --itrace=ibxwpe,
+ The default is all events i.e. the same as --itrace=iybxwpe,
except for perf script where it is --itrace=ce
In addition, the period (default 100000, except for perf script where it is 1)
@@ -62,6 +66,7 @@
debug messages will or will not be logged. Each flag must be preceded
by either '+' or '-'. The flags are:
a all perf events
+ e output only on errors (size configurable - see linkperf:perf-config[1])
o output to stdout
If supported, the 'q' option may be repeated to increase the effect.