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    Subject[PATCH 16/19] 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 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


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