On 07/12/21 8:22 pm, Arnaldo Carvalho de Melo wrote:
Em Fri, Dec 03, 2021 at 07:50:37AM +0530, Athira Rajeev escreveu:
Sort key p_stage_cyc is used to present the latency
cycles spend in pipeline stages. perf tool has local
p_stage_cyc sort key to display this info. There is no
global variant available for this sort key. local variant
shows latency in a sinlge sample, whereas, global value
will be useful to present the total latency (sum of
latencies) in the hist entry. It represents latency
number multiplied by the number of samples.

Add global (p_stage_cyc) and local variant
(local_p_stage_cyc) for this sort key. Use the
local_p_stage_cyc as default option for "mem" sort mode.
Also add this to list of dynamic sort keys and made the
"dynamic_headers" and "arch_specific_sort_keys" as static.

Signed-off-by: Athira Rajeev <atraj...@linux.vnet.ibm.com>
Reported-by: Namhyung Kim <namhy...@kernel.org>

I got this for v1, does it stand for v2?

Tested-by: Nageswara R Sastry <rnsas...@linux.ibm.com>


Tested with v2 also.


Tested-by: Nageswara R Sastry <rnsas...@linux.ibm.com>


---
Changelog:
v1 -> v2:
  Addressed review comments from Jiri by making the
  "dynamic_headers" and "arch_specific_sort_keys"
  as static.

  tools/perf/util/hist.c |  4 +++-
  tools/perf/util/hist.h |  3 ++-
  tools/perf/util/sort.c | 34 +++++++++++++++++++++++++---------
  tools/perf/util/sort.h |  3 ++-
  4 files changed, 32 insertions(+), 12 deletions(-)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index b776465e04ef..0a8033b09e28 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -211,7 +211,9 @@ void hists__calc_col_len(struct hists *hists, struct 
hist_entry *h)
        hists__new_col_len(hists, HISTC_MEM_BLOCKED, 10);
        hists__new_col_len(hists, HISTC_LOCAL_INS_LAT, 13);
        hists__new_col_len(hists, HISTC_GLOBAL_INS_LAT, 13);
-       hists__new_col_len(hists, HISTC_P_STAGE_CYC, 13);
+       hists__new_col_len(hists, HISTC_LOCAL_P_STAGE_CYC, 13);
+       hists__new_col_len(hists, HISTC_GLOBAL_P_STAGE_CYC, 13);
+
        if (symbol_conf.nanosecs)
                hists__new_col_len(hists, HISTC_TIME, 16);
        else
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 621f35ae1efa..2a15e22fb89c 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -75,7 +75,8 @@ enum hist_column {
        HISTC_MEM_BLOCKED,
        HISTC_LOCAL_INS_LAT,
        HISTC_GLOBAL_INS_LAT,
-       HISTC_P_STAGE_CYC,
+       HISTC_LOCAL_P_STAGE_CYC,
+       HISTC_GLOBAL_P_STAGE_CYC,
        HISTC_NR_COLS, /* Last entry */
  };
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index a111065b484e..e417e47f51b9 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -37,7 +37,7 @@ const char    default_parent_pattern[] = 
"^sys_|^do_page_fault";
  const char    *parent_pattern = default_parent_pattern;
  const char    *default_sort_order = "comm,dso,symbol";
  const char    default_branch_sort_order[] = 
"comm,dso_from,symbol_from,symbol_to,cycles";
-const char     default_mem_sort_order[] = 
"local_weight,mem,sym,dso,symbol_daddr,dso_daddr,snoop,tlb,locked,blocked,local_ins_lat,p_stage_cyc";
+const char     default_mem_sort_order[] = 
"local_weight,mem,sym,dso,symbol_daddr,dso_daddr,snoop,tlb,locked,blocked,local_ins_lat,local_p_stage_cyc";
  const char    default_top_sort_order[] = "dso,symbol";
  const char    default_diff_sort_order[] = "dso,symbol";
  const char    default_tracepoint_sort_order[] = "trace";
@@ -46,8 +46,8 @@ const char    *field_order;
  regex_t               ignore_callees_regex;
  int           have_ignore_callees = 0;
  enum sort_mode        sort__mode = SORT_MODE__NORMAL;
-const char     *dynamic_headers[] = {"local_ins_lat", "p_stage_cyc"};
-const char     *arch_specific_sort_keys[] = {"p_stage_cyc"};
+static const char *const dynamic_headers[] = {"local_ins_lat", "ins_lat", 
"local_p_stage_cyc", "p_stage_cyc"};
+static const char *const arch_specific_sort_keys[] = {"local_p_stage_cyc", 
"p_stage_cyc"};
/*
   * Replaces all occurrences of a char used with the:
@@ -1392,22 +1392,37 @@ struct sort_entry sort_global_ins_lat = {
  };
static int64_t
-sort__global_p_stage_cyc_cmp(struct hist_entry *left, struct hist_entry *right)
+sort__p_stage_cyc_cmp(struct hist_entry *left, struct hist_entry *right)
  {
        return left->p_stage_cyc - right->p_stage_cyc;
  }
+static int hist_entry__global_p_stage_cyc_snprintf(struct hist_entry *he, char *bf,
+                                       size_t size, unsigned int width)
+{
+       return repsep_snprintf(bf, size, "%-*u", width,
+                       he->p_stage_cyc * he->stat.nr_events);
+}
+
+
  static int hist_entry__p_stage_cyc_snprintf(struct hist_entry *he, char *bf,
                                        size_t size, unsigned int width)
  {
        return repsep_snprintf(bf, size, "%-*u", width, he->p_stage_cyc);
  }
-struct sort_entry sort_p_stage_cyc = {
-       .se_header      = "Pipeline Stage Cycle",
-       .se_cmp         = sort__global_p_stage_cyc_cmp,
+struct sort_entry sort_local_p_stage_cyc = {
+       .se_header      = "Local Pipeline Stage Cycle",
+       .se_cmp         = sort__p_stage_cyc_cmp,
        .se_snprintf    = hist_entry__p_stage_cyc_snprintf,
-       .se_width_idx   = HISTC_P_STAGE_CYC,
+       .se_width_idx   = HISTC_LOCAL_P_STAGE_CYC,
+};
+
+struct sort_entry sort_global_p_stage_cyc = {
+       .se_header      = "Pipeline Stage Cycle",
+       .se_cmp         = sort__p_stage_cyc_cmp,
+       .se_snprintf    = hist_entry__global_p_stage_cyc_snprintf,
+       .se_width_idx   = HISTC_GLOBAL_P_STAGE_CYC,
  };
struct sort_entry sort_mem_daddr_sym = {
@@ -1858,7 +1873,8 @@ static struct sort_dimension common_sort_dimensions[] = {
        DIM(SORT_CODE_PAGE_SIZE, "code_page_size", sort_code_page_size),
        DIM(SORT_LOCAL_INS_LAT, "local_ins_lat", sort_local_ins_lat),
        DIM(SORT_GLOBAL_INS_LAT, "ins_lat", sort_global_ins_lat),
-       DIM(SORT_PIPELINE_STAGE_CYC, "p_stage_cyc", sort_p_stage_cyc),
+       DIM(SORT_LOCAL_PIPELINE_STAGE_CYC, "local_p_stage_cyc", 
sort_local_p_stage_cyc),
+       DIM(SORT_GLOBAL_PIPELINE_STAGE_CYC, "p_stage_cyc", 
sort_global_p_stage_cyc),
  };
#undef DIM
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 7b7145501933..f994261888e1 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -235,7 +235,8 @@ enum sort_type {
        SORT_CODE_PAGE_SIZE,
        SORT_LOCAL_INS_LAT,
        SORT_GLOBAL_INS_LAT,
-       SORT_PIPELINE_STAGE_CYC,
+       SORT_LOCAL_PIPELINE_STAGE_CYC,
+       SORT_GLOBAL_PIPELINE_STAGE_CYC,
/* branch stack specific sort keys */
        __SORT_BRANCH_STACK,
--
2.33.0


--
Thanks and Regards
R.Nageswara Sastry

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