[PATCH 16/19] perf, c2c: Output summary stats

[Don Zickus <dzickus@redhat.com>]

Output some summary stats based on the processed records.
Mainly diagnostic uses.

Stats done by Dick Fowles, backported by me.

Sample output:

=================================================
            Trace Event Information
=================================================
  Total records                     :    1322047
  Locked Load/Store Operations      :     206317
  Load Operations                   :     355701
  Loads - uncacheable               :        590
  Loads - IO                        :          0
  Loads - Miss                      :        440
  Loads - no mapping                :        207
  Load Fill Buffer Hit              :     100214
  Load L1D hit                      :     148454
  Load L2D hit                      :      15170
  Load LLC hit                      :      53872
  Load Local HITM                   :      15388
  Load Remote HITM                  :      26760
  Load Remote HIT                   :       3910
  Load Local DRAM                   :       2436
  Load Remote DRAM                  :       3648
  Load MESI State Exclusive         :       2883
  Load MESI State Shared            :       3201
  Load LLC Misses                   :      36754
  LLC Misses to Local DRAM          :        6.6%
  LLC Misses to Remote DRAM         :        9.9%
  LLC Misses to Remote cache (HIT)  :       10.6%
  LLC Misses to Remote cache (HITM) :       72.8%
  Store Operations                  :     966322
  Store - uncacheable               :          0
  Store - no mapping                :      42931
  Store L1D Hit                     :     915696
  Store L1D Miss                    :       7695
  No Page Map Rejects               :       1193
  Unable to parse data source       :         24

V2: refresh to hist_entry

Original-by: Dick Fowles <rfowles@redhat.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
---
 tools/perf/builtin-c2c.c | 47 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 46 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 8756ca5..3b0e0b2 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -963,7 +963,6 @@ static void print_hitm_cacheline_offset(struct c2c_hit *clo,
 						 23, stdout);
 	}
 }
-
 static void print_c2c_hitm_report(struct rb_root *hitm_tree,
 				  struct c2c_stats *hitm_stats __maybe_unused,
 				  struct c2c_stats *c2c_stats)
@@ -1158,6 +1157,51 @@ cleanup:
 	return;
 }
 
+static void print_c2c_trace_report(struct perf_c2c *c2c)
+{
+	int llc_misses;
+	struct c2c_stats *stats = &c2c->stats;
+
+	llc_misses = stats->t.lcl_dram +
+		     stats->t.rmt_dram +
+		     stats->t.rmt_hit +
+		     stats->t.rmt_hitm;
+
+	printf("=================================================\n");
+	printf("            Trace Event Information              \n");
+	printf("=================================================\n");
+	printf("  Total records                     : %10d\n", c2c->stats.nr_entries);
+	printf("  Locked Load/Store Operations      : %10d\n", stats->t.locks);
+	printf("  Load Operations                   : %10d\n", stats->t.load);
+	printf("  Loads - uncacheable               : %10d\n", stats->t.ld_uncache);
+	printf("  Loads - IO                        : %10d\n", stats->t.ld_io);
+	printf("  Loads - Miss                      : %10d\n", stats->t.ld_miss);
+	printf("  Loads - no mapping                : %10d\n", stats->t.ld_noadrs);
+	printf("  Load Fill Buffer Hit              : %10d\n", stats->t.ld_fbhit);
+	printf("  Load L1D hit                      : %10d\n", stats->t.ld_l1hit);
+	printf("  Load L2D hit                      : %10d\n", stats->t.ld_l2hit);
+	printf("  Load LLC hit                      : %10d\n", stats->t.ld_llchit + stats->t.lcl_hitm);
+	printf("  Load Local HITM                   : %10d\n", stats->t.lcl_hitm);
+	printf("  Load Remote HITM                  : %10d\n", stats->t.rmt_hitm);
+	printf("  Load Remote HIT                   : %10d\n", stats->t.rmt_hit);
+	printf("  Load Local DRAM                   : %10d\n", stats->t.lcl_dram);
+	printf("  Load Remote DRAM                  : %10d\n", stats->t.rmt_dram);
+	printf("  Load MESI State Exclusive         : %10d\n", stats->t.ld_excl);
+	printf("  Load MESI State Shared            : %10d\n", stats->t.ld_shared);
+	printf("  Load LLC Misses                   : %10d\n", llc_misses);
+	printf("  LLC Misses to Local DRAM          : %10.1f%%\n", ((double)stats->t.lcl_dram/(double)llc_misses) * 100.);
+	printf("  LLC Misses to Remote DRAM         : %10.1f%%\n", ((double)stats->t.rmt_dram/(double)llc_misses) * 100.);
+	printf("  LLC Misses to Remote cache (HIT)  : %10.1f%%\n", ((double)stats->t.rmt_hit /(double)llc_misses) * 100.);
+	printf("  LLC Misses to Remote cache (HITM) : %10.1f%%\n", ((double)stats->t.rmt_hitm/(double)llc_misses) * 100.);
+	printf("  Store Operations                  : %10d\n", stats->t.store);
+	printf("  Store - uncacheable               : %10d\n", stats->t.st_uncache);
+	printf("  Store - no mapping                : %10d\n", stats->t.st_noadrs);
+	printf("  Store L1D Hit                     : %10d\n", stats->t.st_l1hit);
+	printf("  Store L1D Miss                    : %10d\n", stats->t.st_l1miss);
+	printf("  No Page Map Rejects               : %10d\n", stats->t.nomap);
+	printf("  Unable to parse data source       : %10d\n", stats->t.noparse);
+}
+
 static int perf_c2c__process_events(struct perf_session *session,
 				    struct perf_c2c *c2c)
 {
@@ -1169,6 +1213,7 @@ static int perf_c2c__process_events(struct perf_session *session,
 		goto err;
 	}
 
+	print_c2c_trace_report(c2c);
 	c2c_analyze_hitms(c2c);
 
 err:
-- 
1.7.11.7