From d9d5d767b2c006bbc1993ba3f2124d23ff515e32 Mon Sep 17 00:00:00 2001 From: Kan Liang Date: Tue, 2 Feb 2021 12:09:08 -0800 Subject: perf c2c: Support data block and addr block 'perf c2c' is also a memory profiling tool. Apply the two new data source fields to 'perf c2c' as well. Extend 'perf c2c' to display the number of loads which blocked by data or address conflict. Signed-off-by: Kan Liang Cc: Andi Kleen Cc: Don Zickus Cc: Jin Yao Cc: Jiri Olsa Cc: Joe Mario Cc: Madhavan Srinivasan Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lore.kernel.org/lkml/1612296553-21962-5-git-send-email-kan.liang@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-c2c.c | 3 +++ tools/perf/util/mem-events.c | 6 ++++++ tools/perf/util/mem-events.h | 2 ++ 3 files changed, 11 insertions(+) (limited to 'tools/perf') diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index d247f9878948..e3b9d63077ef 100644 --- a/tools/perf/builtin-c2c.c +++ b/tools/perf/builtin-c2c.c @@ -2134,6 +2134,8 @@ static void print_c2c__display_stats(FILE *out) fprintf(out, " Load MESI State Exclusive : %10d\n", stats->ld_excl); fprintf(out, " Load MESI State Shared : %10d\n", stats->ld_shared); fprintf(out, " Load LLC Misses : %10d\n", llc_misses); + fprintf(out, " Load access blocked by data : %10d\n", stats->blk_data); + fprintf(out, " Load access blocked by address : %10d\n", stats->blk_addr); fprintf(out, " LLC Misses to Local DRAM : %10.1f%%\n", ((double)stats->lcl_dram/(double)llc_misses) * 100.); fprintf(out, " LLC Misses to Remote DRAM : %10.1f%%\n", ((double)stats->rmt_dram/(double)llc_misses) * 100.); fprintf(out, " LLC Misses to Remote cache (HIT) : %10.1f%%\n", ((double)stats->rmt_hit /(double)llc_misses) * 100.); @@ -2162,6 +2164,7 @@ static void print_shared_cacheline_info(FILE *out) fprintf(out, " L2D hits on shared lines : %10d\n", stats->ld_l2hit); fprintf(out, " LLC hits on shared lines : %10d\n", stats->ld_llchit + stats->lcl_hitm); fprintf(out, " Locked Access on shared lines : %10d\n", stats->locks); + fprintf(out, " Blocked Access on shared lines : %10d\n", stats->blk_data + stats->blk_addr); fprintf(out, " Store HITs on shared lines : %10d\n", stats->store); fprintf(out, " Store L1D hits on shared lines : %10d\n", stats->st_l1hit); fprintf(out, " Total Merged records : %10d\n", hitm_cnt + stats->store); diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c index 890f638e2f11..f93a852ad838 100644 --- a/tools/perf/util/mem-events.c +++ b/tools/perf/util/mem-events.c @@ -385,6 +385,7 @@ int c2c_decode_stats(struct c2c_stats *stats, struct mem_info *mi) u64 lvl = data_src->mem_lvl; u64 snoop = data_src->mem_snoop; u64 lock = data_src->mem_lock; + u64 blk = data_src->mem_blk; /* * Skylake might report unknown remote level via this * bit, consider it when evaluating remote HITMs. @@ -404,6 +405,9 @@ do { \ if (lock & P(LOCK, LOCKED)) stats->locks++; + if (blk & P(BLK, DATA)) stats->blk_data++; + if (blk & P(BLK, ADDR)) stats->blk_addr++; + if (op & P(OP, LOAD)) { /* load */ stats->load++; @@ -515,6 +519,8 @@ void c2c_add_stats(struct c2c_stats *stats, struct c2c_stats *add) stats->rmt_hit += add->rmt_hit; stats->lcl_dram += add->lcl_dram; stats->rmt_dram += add->rmt_dram; + stats->blk_data += add->blk_data; + stats->blk_addr += add->blk_addr; stats->nomap += add->nomap; stats->noparse += add->noparse; } diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h index 5ddf44793120..755cef7e0625 100644 --- a/tools/perf/util/mem-events.h +++ b/tools/perf/util/mem-events.h @@ -79,6 +79,8 @@ struct c2c_stats { u32 rmt_hit; /* count of loads with remote hit clean; */ u32 lcl_dram; /* count of loads miss to local DRAM */ u32 rmt_dram; /* count of loads miss to remote DRAM */ + u32 blk_data; /* count of loads blocked by data */ + u32 blk_addr; /* count of loads blocked by address conflict */ u32 nomap; /* count of load/stores with no phys adrs */ u32 noparse; /* count of unparsable data sources */ }; -- cgit v1.2.3-59-g8ed1b