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Subject[PATCH 12/15 V3] perf, c2c: Output summary stats
Date
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 363deec..37bf0bd 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -966,7 +966,6 @@ 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)
@@ -1161,6 +1160,51 @@ 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)
{
@@ -1172,6 +1216,7 @@ 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


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