The cache contention tools needs to keep all the perf records unique in order to properly parse all the data. Currently add_hist_entry() will combine the duplicate record and add the weight/period to the existing record.
This throws away the unique data the cache contention tool needs (mainly the data source). Create a flag to force the records to stay unique. Signed-off-by: Don Zickus <dzic...@redhat.com> --- tools/perf/util/hist.c | 3 ++- tools/perf/util/sort.c | 1 + tools/perf/util/sort.h | 1 + 3 files changed, 4 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index 81f47ee..69d2cb9 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -378,7 +378,8 @@ static struct hist_entry *add_hist_entry(struct hists *hists, */ cmp = hist_entry__cmp(he, entry); - if (!cmp) { + if (!cmp && !sort__wants_unique) { + he_stat__add_period(&he->stat, period, weight); /* diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c index be675f4..ca86b23 100644 --- a/tools/perf/util/sort.c +++ b/tools/perf/util/sort.c @@ -15,6 +15,7 @@ int sort__need_collapse = 0; int sort__has_parent = 0; int sort__has_sym = 0; int sort__has_dso = 0; +int sort__wants_unique = 0; enum sort_mode sort__mode = SORT_MODE__NORMAL; enum sort_type sort__first_dimension; diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h index b1f52a8..b005445 100644 --- a/tools/perf/util/sort.h +++ b/tools/perf/util/sort.h @@ -33,6 +33,7 @@ extern int have_ignore_callees; extern int sort__need_collapse; extern int sort__has_parent; extern int sort__has_sym; +extern int sort__wants_unique; extern enum sort_mode sort__mode; extern struct sort_entry sort_comm; extern struct sort_entry sort_dso; -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/