mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-20 19:23:57 +08:00
181ebb5e23
Add itrace option 'o' to synthesize events recorded in the AUX area due to the use of perf record's aux-output config term. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20190806084606.4021-5-alexander.shishkin@linux.intel.com Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
40 lines
1.3 KiB
Plaintext
40 lines
1.3 KiB
Plaintext
i synthesize instructions events
|
|
b synthesize branches events
|
|
c synthesize branches events (calls only)
|
|
r synthesize branches events (returns only)
|
|
x synthesize transactions events
|
|
w synthesize ptwrite events
|
|
p synthesize power events
|
|
o synthesize other events recorded due to the use
|
|
of aux-output (refer to perf record)
|
|
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)
|
|
s skip initial number of events
|
|
|
|
The default is all events i.e. the same as --itrace=ibxwpe,
|
|
except for perf script where it is --itrace=ce
|
|
|
|
In addition, the period (default 100000, except for perf script where it is 1)
|
|
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.
|
|
|
|
It is also possible to skip events generated (instructions, branches, transactions,
|
|
ptwrite, power) at the beginning. This is useful to ignore initialization code.
|
|
|
|
--itrace=i0nss1000000
|
|
|
|
skips the first million instructions.
|