diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2020-07-10 18:11:03 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-08-06 15:02:14 +0300 |
| commit | 7c1b16ba0e26e6802d80c99c92529f29bcdcea25 (patch) | |
| tree | 788eca05bf50ec627258a751dcaaa27b3388a2e7 /tools/perf/util/spark.c | |
| parent | 51971536ef53478ec92cd9e8249048743169df22 (diff) | |
| download | linux-7c1b16ba0e26e6802d80c99c92529f29bcdcea25.tar.xz | |
perf intel-pt: Add support for decoding FUP/TIP only
Use the new itrace 'q' option to add support for a mode of decoding that
ignores TNT, does not walk object code, but gets the ip from FUP and TIP
packets.
Example:
$ perf record -e intel_pt//u grep -rI pudding drivers
[ perf record: Woken up 52 times to write data ]
[ perf record: Captured and wrote 57.870 MB perf.data ]
$ time perf script --itrace=bi | wc -l
58948289
real 1m23.863s
user 1m23.251s
sys 0m7.452s
$ time perf script --itrace=biq | wc -l
3385694
real 0m4.453s
user 0m4.455s
sys 0m0.328s
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20200710151104.15137-12-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/spark.c')
0 files changed, 0 insertions, 0 deletions