Commit 2d388bd0 authored May 03, 2016 by Jiri Olsa Committed by Arnaldo Carvalho de Melo Oct 19, 2016

perf c2c report: Add stdio output support



Adding the --stdio option output support. The output
tables are dumped directly to the stdio.

$ perf c2c report
  =================================================
             Shared Data Cache Line Table
  =================================================
  #
  #                       Total           ----- LLC Load Hitm -----  ---- Store Reference ----  --- Load Dram ----      LLC    Total  ----- Core Load Hit -----  -- LLC Load Hit --
  #          Cacheline  records    %hitm    Total      Lcl      Rmt    Total    L1Hit   L1Miss       Lcl       Rmt  Ld Miss    Loads       FB       L1       L2       Llc       Rmt
  # ..................  .......  .......  .......  .......  .......  .......  .......  .......  ........  ........  .......  .......  .......  .......  .......  ........  ........
  #
    0xffff88000235f840       17    0.00%        0        0        0       17       17        0         0         0        0        0        0        0        0         0         0
  ...

  =================================================
        Shared Cache Line Distribution Pareto
  =================================================
  #
  # ----- HITM -----  -- Store Refs --        Data address                                  ---------- cycles ----------       cpu                                   Shared
  #     Rmt      Lcl   L1 Hit  L1 Miss              Offset      Pid                    Tid  rmt hitm  lcl hitm      load       cnt                Symbol             Object  Node
  # .......  .......  .......  .......  ..................  .......  .....................  ........  ........  ........  ........  ....................  .................  ....
  #
    ------------------------------------------------------
          0        0       17        0  0xffff88000235f840
    ------------------------------------------------------
      0.00%    0.00%    5.88%    0.00%                 0x0    11474    11474:kworker/u16:5         0         0         0         1  [k] rmap_walk_file             [kernel.kallsyms]   0
      0.00%    0.00%    5.88%    0.00%                0x10    11474    11474:kworker/u16:5         0         0         0         1  [k] lock_page_memcg            [kernel.kallsyms]   0
      0.00%    0.00%   11.76%    0.00%                0x20    11474    11474:kworker/u16:5         0         0         0         1  [k] page_mapping               [kernel.kallsyms]   0
      0.00%    0.00%   64.71%    0.00%                0x28    11474    11474:kworker/u16:5         0         0         0         1  [k] __test_set_page_writeback  [kernel.kallsyms]   0
      0.00%    0.00%   11.76%    0.00%                0x30    11474    11474:kworker/u16:5         0         0         0         1  [k] page_mapped                [kernel.kallsyms]   0
  ...

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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-eorco9r0oeesjve77pkkg43s@git.kernel.org


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 22dd59d1

tools/perf/builtin-c2c.c

+83 −0

Original line number	Diff line number	Diff line
		@@ -13,6 +13,7 @@
		#include "tool.h"
		#include "data.h"
		#include "sort.h"
		#include <asm/bug.h>

		struct c2c_hists {
		struct hists hists;
		@@ -1722,6 +1723,85 @@ static int setup_nodes(struct perf_session *session)
		return 0;
		}

		static void print_cacheline(struct c2c_hists *c2c_hists,
		struct hist_entry *he_cl,
		struct perf_hpp_list *hpp_list,
		FILE *out)
		{
		char bf[1000];
		struct perf_hpp hpp = {
		.buf = bf,
		.size = 1000,
		};
		static bool once;

		if (!once) {
		hists__fprintf_headers(&c2c_hists->hists, out);
		once = true;
		} else {
		fprintf(out, "\n");
		}

		fprintf(out, " ------------------------------------------------------\n");
		__hist_entry__snprintf(he_cl, &hpp, hpp_list);
		fprintf(out, "%s\n", bf);
		fprintf(out, " ------------------------------------------------------\n");

		hists__fprintf(&c2c_hists->hists, false, 0, 0, 0, out, true);
		}

		static void print_pareto(FILE *out)
		{
		struct perf_hpp_list hpp_list;
		struct rb_node *nd;
		int ret;

		perf_hpp_list__init(&hpp_list);
		ret = hpp_list__parse(&hpp_list,
		"cl_rmt_hitm,"
		"cl_lcl_hitm,"
		"cl_stores_l1hit,"
		"cl_stores_l1miss,"
		"dcacheline",
		NULL);

		if (WARN_ONCE(ret, "failed to setup sort entries\n"))
		return;

		nd = rb_first(&c2c.hists.hists.entries);

		for (; nd; nd = rb_next(nd)) {
		struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
		struct c2c_hist_entry *c2c_he;

		if (he->filtered)
		continue;

		c2c_he = container_of(he, struct c2c_hist_entry, he);
		print_cacheline(c2c_he->hists, he, &hpp_list, out);
		}
		}

		static void perf_c2c__hists_fprintf(FILE *out)
		{
		setup_pager();

		fprintf(out, "\n");
		fprintf(out, "=================================================\n");
		fprintf(out, " Shared Data Cache Line Table \n");
		fprintf(out, "=================================================\n");
		fprintf(out, "#\n");

		hists__fprintf(&c2c.hists.hists, true, 0, 0, 0, stdout, false);

		fprintf(out, "\n");
		fprintf(out, "=================================================\n");
		fprintf(out, " Shared Cache Line Distribution Pareto \n");
		fprintf(out, "=================================================\n");
		fprintf(out, "#\n");

		print_pareto(out);
		}

		static int perf_c2c__report(int argc, const char **argv)
		{
		@@ -1806,6 +1886,9 @@ static int perf_c2c__report(int argc, const char **argv)

		ui_progress__finish();

		use_browser = 0;
		perf_c2c__hists_fprintf(stdout);

		out_session:
		perf_session__delete(session);
		out: