From 2d388bd0c9d3e3fed9e4abdd9aadf2f07e9cf755 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Tue, 3 May 2016 14:32:56 +0200 Subject: [PATCH] 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 Tested-by: Arnaldo Carvalho de Melo Cc: Andi Kleen Cc: David Ahern Cc: Don Zickus Cc: Joe Mario Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/n/tip-eorco9r0oeesjve77pkkg43s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-c2c.c | 83 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index c271261..33db26c 100644 --- a/tools/perf/builtin-c2c.c +++ b/tools/perf/builtin-c2c.c @@ -13,6 +13,7 @@ #include "tool.h" #include "data.h" #include "sort.h" +#include 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: -- 2.7.4