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Date: Mon, 7 Mar 2016 15:06:04 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Namhyung Kim <namhyung@...nel.org>
Cc: Ingo Molnar <mingo@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
Jiri Olsa <jolsa@...nel.org>,
LKML <linux-kernel@...r.kernel.org>,
David Ahern <dsahern@...il.com>,
Andi Kleen <andi@...stfloor.org>,
Stephane Eranian <eranian@...gle.com>,
Wang Nan <wangnan0@...wei.com>
Subject: Re: [PATCH v3 5/7] perf report: Use hierarchy hpp list on stdio
Em Mon, Mar 07, 2016 at 11:35:06PM +0900, Namhyung Kim escreveu:
> Now hpp formats are linked using perf_hpp_list_node when hierarchy is
> enabled. Use this info to print entries with multiple sort keys in a
> single hierarchy properly.
>
> For example, the below example shows using 4 sort keys with 2 levels.
>
> $ perf report --hierarchy -s '{prev_pid,prev_comm},{next_pid,next_comm}' \
> --percent-limit 1 -i perf.data.sched
> ...
> # Overhead prev_pid+prev_comm / next_pid+next_comm
> # ........... .......................................
> #
Ok, this one addresses my previous comment, I think the next one will do it for
the TUI, good. :-)
-# Overhead prev_pid / prev_comm / next_pid / next_comm
-# ........... ...........................................
+# Overhead prev_pid+prev_comm / next_pid+next_comm
+# ........... .......................................
> 22.36% 0 swapper/0
> 9.48% 17773 transmission-gt
> 5.25% 109 kworker/0:1H
> 1.53% 6524 Xephyr
> 21.39% 17773 transmission-gt
> 9.52% 0 swapper/0
> 9.04% 0 swapper/2
> 1.78% 0 swapper/3
>
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> ---
> tools/perf/ui/stdio/hist.c | 103 +++++++++++++++++++++++++--------------------
> 1 file changed, 57 insertions(+), 46 deletions(-)
>
> diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
> index 543d7137cc0c..7aff5acf3265 100644
> --- a/tools/perf/ui/stdio/hist.c
> +++ b/tools/perf/ui/stdio/hist.c
> @@ -417,6 +417,7 @@ static int hist_entry__hierarchy_fprintf(struct hist_entry *he,
> {
> const char *sep = symbol_conf.field_sep;
> struct perf_hpp_fmt *fmt;
> + struct perf_hpp_list_node *fmt_node;
> char *buf = hpp->buf;
> size_t size = hpp->size;
> int ret, printed = 0;
> @@ -428,10 +429,10 @@ static int hist_entry__hierarchy_fprintf(struct hist_entry *he,
> ret = scnprintf(hpp->buf, hpp->size, "%*s", he->depth * HIERARCHY_INDENT, "");
> advance_hpp(hpp, ret);
>
> - hists__for_each_format(he->hists, fmt) {
> - if (perf_hpp__is_sort_entry(fmt) || perf_hpp__is_dynamic_entry(fmt))
> - break;
> -
> + /* the first hpp_list_node is for overhead columns */
> + fmt_node = list_first_entry(&hists->hpp_formats,
> + struct perf_hpp_list_node, list);
> + perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
> /*
> * If there's no field_sep, we still need
> * to display initial ' '.
> @@ -529,50 +530,49 @@ static int print_hierarchy_indent(const char *sep, int indent,
> static int print_hierarchy_header(struct hists *hists, struct perf_hpp *hpp,
> const char *sep, FILE *fp)
> {
> - bool first = true;
> + bool first_node, first_col;
> int indent;
> int depth;
> unsigned width = 0;
> unsigned header_width = 0;
> struct perf_hpp_fmt *fmt;
> + struct perf_hpp_list_node *fmt_node;
>
> indent = hists->nr_hpp_node;
>
> /* preserve max indent depth for column headers */
> print_hierarchy_indent(sep, indent, spaces, fp);
>
> - hists__for_each_format(hists, fmt) {
> - if (perf_hpp__is_sort_entry(fmt) || perf_hpp__is_dynamic_entry(fmt))
> - break;
> -
> - if (!first)
> - fprintf(fp, "%s", sep ?: " ");
> - else
> - first = false;
> + /* the first hpp_list_node is for overhead columns */
> + fmt_node = list_first_entry(&hists->hpp_formats,
> + struct perf_hpp_list_node, list);
>
> + perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
> fmt->header(fmt, hpp, hists_to_evsel(hists));
> - fprintf(fp, "%s", hpp->buf);
> + fprintf(fp, "%s%s", hpp->buf, sep ?: " ");
> }
>
> /* combine sort headers with ' / ' */
> - first = true;
> - hists__for_each_format(hists, fmt) {
> - if (!perf_hpp__is_sort_entry(fmt) && !perf_hpp__is_dynamic_entry(fmt))
> - continue;
> - if (perf_hpp__should_skip(fmt, hists))
> - continue;
> -
> - if (!first)
> + first_node = true;
> + list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
> + if (!first_node)
> header_width += fprintf(fp, " / ");
> - else {
> - fprintf(fp, "%s", sep ?: " ");
> - first = false;
> - }
> + first_node = false;
>
> - fmt->header(fmt, hpp, hists_to_evsel(hists));
> - rtrim(hpp->buf);
> + first_col = true;
> + perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
> + if (perf_hpp__should_skip(fmt, hists))
> + continue;
> +
> + if (!first_col)
> + header_width += fprintf(fp, "+");
> + first_col = false;
> +
> + fmt->header(fmt, hpp, hists_to_evsel(hists));
> + rtrim(hpp->buf);
>
> - header_width += fprintf(fp, "%s", ltrim(hpp->buf));
> + header_width += fprintf(fp, "%s", ltrim(hpp->buf));
> + }
> }
>
> fprintf(fp, "\n# ");
> @@ -580,29 +580,35 @@ static int print_hierarchy_header(struct hists *hists, struct perf_hpp *hpp,
> /* preserve max indent depth for initial dots */
> print_hierarchy_indent(sep, indent, dots, fp);
>
> - first = true;
> - hists__for_each_format(hists, fmt) {
> - if (perf_hpp__is_sort_entry(fmt) || perf_hpp__is_dynamic_entry(fmt))
> - break;
> + /* the first hpp_list_node is for overhead columns */
> + fmt_node = list_first_entry(&hists->hpp_formats,
> + struct perf_hpp_list_node, list);
>
> - if (!first)
> - fprintf(fp, "%s", sep ?: " ");
> - else
> - first = false;
> + first_col = true;
> + perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
> + if (!first_col)
> + fprintf(fp, "%s", sep ?: "..");
> + first_col = false;
>
> width = fmt->width(fmt, hpp, hists_to_evsel(hists));
> fprintf(fp, "%.*s", width, dots);
> }
>
> depth = 0;
> - hists__for_each_format(hists, fmt) {
> - if (!perf_hpp__is_sort_entry(fmt) && !perf_hpp__is_dynamic_entry(fmt))
> - continue;
> - if (perf_hpp__should_skip(fmt, hists))
> - continue;
> + list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
> + first_col = true;
> + width = depth * HIERARCHY_INDENT;
>
> - width = fmt->width(fmt, hpp, hists_to_evsel(hists));
> - width += depth * HIERARCHY_INDENT;
> + perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
> + if (perf_hpp__should_skip(fmt, hists))
> + continue;
> +
> + if (!first_col)
> + width++; /* for '+' sign between column header */
> + first_col = false;
> +
> + width += fmt->width(fmt, hpp, hists_to_evsel(hists));
> + }
>
> if (width > header_width)
> header_width = width;
> @@ -621,6 +627,7 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
> int max_cols, float min_pcnt, FILE *fp)
> {
> struct perf_hpp_fmt *fmt;
> + struct perf_hpp_list_node *fmt_node;
> struct rb_node *nd;
> size_t ret = 0;
> unsigned int width;
> @@ -650,6 +657,10 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
> fprintf(fp, "# ");
>
> if (symbol_conf.report_hierarchy) {
> + list_for_each_entry(fmt_node, &hists->hpp_formats, list) {
> + perf_hpp_list__for_each_format(&fmt_node->hpp, fmt)
> + perf_hpp__reset_width(fmt, hists);
> + }
> nr_rows += print_hierarchy_header(hists, &dummy_hpp, sep, fp);
> goto print_entries;
> }
> @@ -734,9 +745,9 @@ print_entries:
> * display "no entry >= x.xx%" message.
> */
> if (!h->leaf && !hist_entry__has_hierarchy_children(h, min_pcnt)) {
> - int nr_sort = hists->nr_sort_keys;
> + int depth = hists->nr_hpp_node + h->depth + 1;
>
> - print_hierarchy_indent(sep, nr_sort + h->depth + 1, spaces, fp);
> + print_hierarchy_indent(sep, depth, spaces, fp);
> fprintf(fp, "%*sno entry >= %.2f%%\n", indent, "", min_pcnt);
>
> if (max_rows && ++nr_rows >= max_rows)
> --
> 2.7.2
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