diff options
Diffstat (limited to 'tools/perf/Documentation/itrace.txt')
| -rw-r--r-- | tools/perf/Documentation/itrace.txt | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/tools/perf/Documentation/itrace.txt b/tools/perf/Documentation/itrace.txt index e817179c5027..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 @@ -47,3 +48,16 @@ --itrace=i0nss1000000 skips the first million instructions. + + The 'e' option may be followed by flags which affect what errors will or + will not be reported. Each flag must be preceded by either '+' or '-'. + The flags are: + o overflow + l trace data lost + + If supported, the 'd' option may be followed by flags which affect what + 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. |