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-rw-r--r--tools/perf/Documentation/itrace.txt3
-rw-r--r--tools/perf/util/auxtrace.c3
-rw-r--r--tools/perf/util/auxtrace.h3
3 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/Documentation/itrace.txt b/tools/perf/Documentation/itrace.txt
index 9c0e8586ed47..d3740c8f399b 100644
--- a/tools/perf/Documentation/itrace.txt
+++ b/tools/perf/Documentation/itrace.txt
@@ -18,6 +18,7 @@
l synthesize last branch entries (use with i or x)
L synthesize last branch entries on existing event records
s skip initial number of events
+ q quicker (less detailed) decoding
The default is all events i.e. the same as --itrace=ibxwpe,
except for perf script where it is --itrace=ce
@@ -58,3 +59,5 @@
debug messages will or will not be logged. Each flag must be preceded
by either '+' or '-'. The flags are:
a all perf events
+
+ If supported, the 'q' option may be repeated to increase the effect.
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index e028187c51fe..42a85c86421d 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -1554,6 +1554,9 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str,
case 'a':
synth_opts->remote_access = true;
break;
+ case 'q':
+ synth_opts->quick += 1;
+ break;
case ' ':
case ',':
break;
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index 821ef5446a13..951d2d14cf24 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -100,6 +100,7 @@ enum itrace_period_type {
* @error_minus_flags: flags to affect what errors are reported
* @log_plus_flags: flags to affect what is logged
* @log_minus_flags: flags to affect what is logged
+ * @quick: quicker (less detailed) decoding
*/
struct itrace_synth_opts {
bool set;
@@ -137,6 +138,7 @@ struct itrace_synth_opts {
unsigned int error_minus_flags;
unsigned int log_plus_flags;
unsigned int log_minus_flags;
+ unsigned int quick;
};
/**
@@ -642,6 +644,7 @@ bool auxtrace__evsel_is_auxtrace(struct perf_session *session,
" l[len]: synthesize last branch entries (use with i or x)\n" \
" L[len]: synthesize last branch entries on existing event records\n" \
" sNUMBER: skip initial number of events\n" \
+" q: quicker (less detailed) decoding\n" \
" PERIOD[ns|us|ms|i|t]: specify period to sample stream\n" \
" concatenate multiple options. Default is ibxwpe or cewp\n"