perf c2c report: Add total loads sort key

It is to be displayed in the main cachelines overall output:

  tot_loads

It displays sum of all load accesses for cacheline.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-czd17qsh5u5z0yc1estz9l2y@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index ff5b5b81d333436ad0eda69f115f3ce72f4b13b7..2411fe025bc79c27cee52305c5bfac5e9157032c 100644 (file)
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -514,6 +514,57 @@ tot_recs_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
        return tot_recs_left - tot_recs_right;
 }
 
+static uint64_t total_loads(struct c2c_stats *stats)
+{
+       uint64_t lclmiss, ldcnt;
+
+       lclmiss  = stats->lcl_dram +
+                  stats->rmt_dram +
+                  stats->rmt_hitm +
+                  stats->rmt_hit;
+
+       ldcnt    = lclmiss +
+                  stats->ld_fbhit +
+                  stats->ld_l1hit +
+                  stats->ld_l2hit +
+                  stats->ld_llchit +
+                  stats->lcl_hitm;
+
+       return ldcnt;
+}
+
+static int
+tot_loads_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+               struct hist_entry *he)
+{
+       struct c2c_hist_entry *c2c_he;
+       int width = c2c_width(fmt, hpp, he->hists);
+       uint64_t tot_recs;
+
+       c2c_he = container_of(he, struct c2c_hist_entry, he);
+       tot_recs = total_loads(&c2c_he->stats);
+
+       return scnprintf(hpp->buf, hpp->size, "%*" PRIu64, width, tot_recs);
+}
+
+static int64_t
+tot_loads_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+             struct hist_entry *left, struct hist_entry *right)
+{
+       struct c2c_hist_entry *c2c_left;
+       struct c2c_hist_entry *c2c_right;
+       uint64_t tot_recs_left;
+       uint64_t tot_recs_right;
+
+       c2c_left  = container_of(left, struct c2c_hist_entry, he);
+       c2c_right = container_of(right, struct c2c_hist_entry, he);
+
+       tot_recs_left  = total_loads(&c2c_left->stats);
+       tot_recs_right = total_loads(&c2c_right->stats);
+
+       return tot_recs_left - tot_recs_right;
+}
+
 #define HEADER_LOW(__h)                        \
        {                               \
                .line[1] = {            \
@@ -709,6 +760,14 @@ static struct c2c_dimension dim_tot_recs = {
        .width          = 7,
 };
 
+static struct c2c_dimension dim_tot_loads = {
+       .header         = HEADER_BOTH("Total", "Loads"),
+       .name           = "tot_loads",
+       .cmp            = tot_loads_cmp,
+       .entry          = tot_loads_entry,
+       .width          = 7,
+};
+
 static struct c2c_dimension *dimensions[] = {
        &dim_dcacheline,
        &dim_offset,
@@ -730,6 +789,7 @@ static struct c2c_dimension *dimensions[] = {
        &dim_ld_rmthit,
        &dim_ld_llcmiss,
        &dim_tot_recs,
+       &dim_tot_loads,
        NULL,
 };