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| author | Adrian Hunter <adrian.hunter@intel.com> | 2018-11-05 09:35:05 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-11-05 14:53:54 -0300 |
| commit | f6c23e3b55cb93f32a724f41af8d38888bc2ab6b (patch) | |
| tree | 2f719879a904351a0494e78b0d81c78fb7310ca0 /tools | |
| parent | 93f8be2799515e01647c5a9b0d17a90a00ebcf82 (diff) | |
| download | linux-f6c23e3b55cb93f32a724f41af8d38888bc2ab6b.tar.gz linux-f6c23e3b55cb93f32a724f41af8d38888bc2ab6b.tar.bz2 linux-f6c23e3b55cb93f32a724f41af8d38888bc2ab6b.zip | |
perf intel-pt: Add MTC and CYC timestamps to debug log
One cause of decoding errors is un-synchronized side-band data.
Timestamps are needed to debug such cases. TSC packet timestamps are
logged. Log also MTC and CYC timestamps.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Link: http://lkml.kernel.org/r/20181105073505.8129-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index 58f6a9ceb590..4503f3ca45ab 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -1474,6 +1474,8 @@ static void intel_pt_calc_mtc_timestamp(struct intel_pt_decoder *decoder) decoder->have_calc_cyc_to_tsc = false; intel_pt_calc_cyc_to_tsc(decoder, true); } + + intel_pt_log_to("Setting timestamp", decoder->timestamp); } static void intel_pt_calc_cbr(struct intel_pt_decoder *decoder) @@ -1514,6 +1516,8 @@ static void intel_pt_calc_cyc_timestamp(struct intel_pt_decoder *decoder) decoder->timestamp = timestamp; decoder->timestamp_insn_cnt = 0; + + intel_pt_log_to("Setting timestamp", decoder->timestamp); } /* Walk PSB+ packets when already in sync. */ |