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Diffstat (limited to 'kernel/tools/perf/Documentation/itrace.txt')
| -rw-r--r-- | kernel/tools/perf/Documentation/itrace.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/kernel/tools/perf/Documentation/itrace.txt b/kernel/tools/perf/Documentation/itrace.txt new file mode 100644 index 000000000..65453f4c7 --- /dev/null +++ b/kernel/tools/perf/Documentation/itrace.txt @@ -0,0 +1,26 @@ + i synthesize instructions events + b synthesize branches events + c synthesize branches events (calls only) + r synthesize branches events (returns only) + x synthesize transactions events + e synthesize error events + d create a debug log + g synthesize a call chain (use with i or x) + l synthesize last branch entries (use with i or x) + + The default is all events i.e. the same as --itrace=ibxe + + In addition, the period (default 100000) for instructions events + can be specified in units of: + + i instructions + t ticks + ms milliseconds + us microseconds + ns nanoseconds (default) + + Also the call chain size (default 16, max. 1024) for instructions or + transactions events can be specified. + + Also the number of last branch entries (default 64, max. 1024) for + instructions or transactions events can be specified. |