Merge tag 'mips_fixes_5.9_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips...

[linux-2.6-microblaze.git] / tools / perf / Documentation / itrace.txt

diff --git a/tools/perf/Documentation/itrace.txt b/tools/perf/Documentation/itrace.txt
index e817179..d3740c8 100644 (file)
--- 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.