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Message-ID: <878vcmczjt.fsf@sejong.aot.lge.com>
Date: Fri, 07 Sep 2012 11:55:02 +0900
From: Namhyung Kim <namhyung@...nel.org>
To: Jiri Olsa <jolsa@...hat.com>
Cc: linux-kernel@...r.kernel.org,
Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Ingo Molnar <mingo@...e.hu>, Paul Mackerras <paulus@...ba.org>,
Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
Frederic Weisbecker <fweisbec@...il.com>,
"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
Andi Kleen <andi@...stfloor.org>,
David Ahern <dsahern@...il.com>
Subject: Re: [PATCH 05/12] perf diff: Refactor stdio ui data columns output
Hi, Jiri
On Thu, 6 Sep 2012 17:46:59 +0200, Jiri Olsa wrote:
> Currently for any of the data columns (like Overhead/Period..) in
> stdio ui, there's separate code to print header/dots/value scattered
> along the display code path.
>
> Adding hists_stdio_column struct to centralize all info needed
> to print column header/dots/value.
>
> This change eases up addition for new columns, which is now mostly
> matter only of adding new hists_stdio_column struct.
As you may know, I submitted a similar patchset few days ago for the
same reason and it handles TUI/GTK cases as well. I'm waiting for
reviews.
Thanks,
Namhyung
>
> Cc: Arnaldo Carvalho de Melo <acme@...stprotocols.net>
> Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> Cc: Ingo Molnar <mingo@...e.hu>
> Cc: Paul Mackerras <paulus@...ba.org>
> Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
> Cc: Frederic Weisbecker <fweisbec@...il.com>
> Cc: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
> Cc: Andi Kleen <andi@...stfloor.org>
> Cc: David Ahern <dsahern@...il.com>
> Cc: Namhyung Kim <namhyung@...nel.org>
> Signed-off-by: Jiri Olsa <jolsa@...hat.com>
> ---
> tools/perf/builtin-diff.c | 14 +-
> tools/perf/builtin-report.c | 6 +-
> tools/perf/builtin-top.c | 6 +-
> tools/perf/ui/stdio/hist.c | 506 +++++++++++++++++++++++++-------------------
> tools/perf/ui/stdio/hist.h | 19 ++
> tools/perf/util/hist.c | 5 +-
> tools/perf/util/hist.h | 19 +-
> 7 files changed, 345 insertions(+), 230 deletions(-)
> create mode 100644 tools/perf/ui/stdio/hist.h
>
> diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
> index 4e63979..282fd5e 100644
> --- a/tools/perf/builtin-diff.c
> +++ b/tools/perf/builtin-diff.c
> @@ -16,6 +16,7 @@
> #include "util/sort.h"
> #include "util/symbol.h"
> #include "util/util.h"
> +#include "ui/stdio/hist.h"
>
> #include <stdlib.h>
>
> @@ -214,8 +215,7 @@ static int __cmd_diff(void)
> first = false;
>
> hists__match(&evsel_old->hists, &evsel->hists);
> - hists__fprintf(&evsel->hists, &evsel_old->hists,
> - show_displacement, true, 0, 0, stdout);
> + hists__fprintf(&evsel->hists, true, 0, 0, stdout);
> }
>
> out_delete:
> @@ -257,6 +257,15 @@ static const struct option options[] = {
> OPT_END()
> };
>
> +static void setup_ui_stdio(void)
> +{
> + hists_stdio_column__register_idx(HISTC_BASELINE);
> + hists_stdio_column__register_global();
> + hists_stdio_column__register_idx(HISTC_DELTA);
> + if (show_displacement)
> + hists_stdio_column__register_idx(HISTC_DISPLACEMENT);
> +}
> +
> int cmd_diff(int argc, const char **argv, const char *prefix __used)
> {
> sort_order = diff__default_sort_order;
> @@ -280,6 +289,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix __used)
> return -1;
>
> setup_sorting(diff_usage, options);
> + setup_ui_stdio();
> setup_pager();
>
> sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", NULL);
> diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
> index d618253..c855c9a 100644
> --- a/tools/perf/builtin-report.c
> +++ b/tools/perf/builtin-report.c
> @@ -33,6 +33,7 @@
> #include "util/thread.h"
> #include "util/sort.h"
> #include "util/hist.h"
> +#include "ui/stdio/hist.h"
>
> #include <linux/bitmap.h>
>
> @@ -315,12 +316,15 @@ static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
> {
> struct perf_evsel *pos;
>
> + hists_stdio_column__register_idx(HISTC_OVERHEAD);
> + hists_stdio_column__register_global();
> +
> list_for_each_entry(pos, &evlist->entries, node) {
> struct hists *hists = &pos->hists;
> const char *evname = perf_evsel__name(pos);
>
> hists__fprintf_nr_sample_events(hists, evname, stdout);
> - hists__fprintf(hists, NULL, false, true, 0, 0, stdout);
> + hists__fprintf(hists, true, 0, 0, stdout);
> fprintf(stdout, "\n\n");
> }
>
> diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
> index 0513aaa..26da442 100644
> --- a/tools/perf/builtin-top.c
> +++ b/tools/perf/builtin-top.c
> @@ -41,6 +41,7 @@
> #include "util/intlist.h"
>
> #include "util/debug.h"
> +#include "ui/stdio/hist.h"
>
> #include <assert.h>
> #include <elf.h>
> @@ -315,7 +316,7 @@ static void perf_top__print_sym_table(struct perf_top *top)
> hists__output_recalc_col_len(&top->sym_evsel->hists,
> top->winsize.ws_row - 3);
> putchar('\n');
> - hists__fprintf(&top->sym_evsel->hists, NULL, false, false,
> + hists__fprintf(&top->sym_evsel->hists, false,
> top->winsize.ws_row - 4 - printed, win_width, stdout);
> }
>
> @@ -607,6 +608,9 @@ static void *display_thread(void *arg)
> struct perf_top *top = arg;
> int delay_msecs, c;
>
> + hists_stdio_column__register_idx(HISTC_OVERHEAD);
> + hists_stdio_column__register_global();
> +
> tcgetattr(0, &save);
> tc = save;
> tc.c_lflag &= ~(ICANON | ECHO);
> diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
> index 4ae9ee5..48fb0b3 100644
> --- a/tools/perf/ui/stdio/hist.c
> +++ b/tools/perf/ui/stdio/hist.c
> @@ -1,10 +1,180 @@
> #include <stdio.h>
> #include <math.h>
>
> +#include "hist.h"
> #include "../../util/util.h"
> #include "../../util/hist.h"
> #include "../../util/sort.h"
>
> +static double get_period_percent(struct hist_entry *he, u64 period)
> +{
> + u64 total = he->hists->stats.total_period;
> + return (period * 100.0) / total;
> +}
> +
> +static int
> +hists_stdio_column__delta_snprintf(struct hist_entry *he, char *bf,
> + size_t size, unsigned int width __used)
> +{
> + struct hist_entry *pair = he->pair;
> + double new_percent = get_period_percent(he, he->period);
> + double old_percent = pair ? get_period_percent(pair, pair->period) : 0.0;
> + double diff = new_percent - old_percent;
> + int ret;
> +
> + if (fabs(diff) >= 0.01)
> + ret = percent_color_snprintf(bf, size, "%+7.2F%%", diff);
> + else
> + ret = scnprintf(bf, size, "%8s", " ");
> +
> + return ret;
> +}
> +
> +static int
> +hists_stdio_column__baseline_snprintf(struct hist_entry *he, char *bf,
> + size_t size, unsigned int width __used)
> +{
> + struct hist_entry *pair = he->pair;
> + double percent = pair ? get_period_percent(pair, pair->period) : 0.0;
> +
> + return percent_color_snprintf(bf, size, "%7.2F%%", percent);
> +}
> +
> +static int
> +hists_stdio_column__overhead_snprintf(struct hist_entry *he, char *bf,
> + size_t size, unsigned int width __used)
> +{
> + double percent = get_period_percent(he, he->period);
> + return percent_color_snprintf(bf, size, "%7.2f%%", percent);
> +}
> +
> +static int
> +hists_stdio_column__nr_samples_snprintf(struct hist_entry *he, char *bf,
> + size_t size, unsigned int width __used)
> +{
> + return scnprintf(bf, size, "%12" PRIu64, he->nr_events);
> +}
> +
> +static int
> +hists_stdio_column__total_period_snprintf(struct hist_entry *he, char *bf,
> + size_t size, unsigned int width __used)
> +{
> + return scnprintf(bf, size , "%12" PRIu64, he->period);
> +}
> +
> +static int
> +hists_stdio_column__cpu_sys_snprintf(struct hist_entry *he, char *bf,
> + size_t size, unsigned int width __used)
> +{
> + double percent = get_period_percent(he, he->period_sys);
> + return percent_color_snprintf(bf, size, "%7.2f%%", percent);
> +}
> +
> +static int
> +hists_stdio_column__cpu_us_snprintf(struct hist_entry *he, char *bf,
> + size_t size, unsigned int width __used)
> +{
> + double percent = get_period_percent(he, he->period_us);
> + return percent_color_snprintf(bf, size, "%7.2f%%", percent);
> +}
> +
> +static int
> +hists_stdio_column__cpu_guest_sys_snprintf(struct hist_entry *he, char *bf,
> + size_t size, unsigned int width __used)
> +{
> + double percent = get_period_percent(he, he->period_guest_sys);
> + return percent_color_snprintf(bf, size, "%8.2f%%", percent);
> +}
> +
> +static int
> +hists_stdio_column__cpu_guest_us_snprintf(struct hist_entry *he, char *bf,
> + size_t size, unsigned int width __used)
> +{
> + double percent = get_period_percent(he, he->period_guest_us);
> + return percent_color_snprintf(bf, size, "%7.2f%%", percent);
> +}
> +
> +static int
> +hists_stdio_column__displacement_snprintf(struct hist_entry *he, char *bf,
> + size_t size, unsigned int width __used)
> +{
> + struct hist_entry *pair = he->pair;
> + unsigned long displ = pair ? pair->position - he->position : 0;
> + return scnprintf(bf, size, displ ? "%+5ld" : " ", displ);
> +}
> +
> +LIST_HEAD(hists_stdio_column__list);
> +
> +#define DEF_COLUMN(name, c, w, h) \
> +[ c ] = { \
> + .list = LIST_HEAD_INIT((hists_stdio_column__array[ c ]).list),\
> + .header = h, \
> + .snprintf = hists_stdio_column__ ## name ## _snprintf, \
> + .col_idx = c, \
> + .col_width = w, \
> +},
> +
> +struct hists_stdio_column hists_stdio_column__array[HISTC_STDIO_NR_COLS] = {
> +DEF_COLUMN(overhead, HISTC_OVERHEAD, 8, "Overhead")
> +DEF_COLUMN(baseline, HISTC_BASELINE, 8, "Baseline")
> +DEF_COLUMN(cpu_sys, HISTC_CPU_UTILIZATION_SYS, 8, "sys")
> +DEF_COLUMN(cpu_us, HISTC_CPU_UTILIZATION_US, 8, "us")
> +DEF_COLUMN(cpu_guest_sys, HISTC_CPU_UTILIZATION_GUEST_SYS, 8, "guest sys")
> +DEF_COLUMN(cpu_guest_us, HISTC_CPU_UTILIZATION_GUEST_US, 8, "guest us")
> +DEF_COLUMN(nr_samples, HISTC_NR_SAMPLES, 12, "Samples")
> +DEF_COLUMN(total_period, HISTC_TOTAL_PERIOD, 12, "Period")
> +DEF_COLUMN(delta, HISTC_DELTA, 8, "Delta")
> +DEF_COLUMN(displacement, HISTC_DISPLACEMENT, 5, "Displ")
> +};
> +
> +int hists_stdio_column__register_idx(int idx)
> +{
> + struct hists_stdio_column *col;
> +
> + if (idx >= HISTC_STDIO_NR_COLS)
> + return -EINVAL;
> +
> + col = &hists_stdio_column__array[idx];
> +
> + if (!list_empty(&col->list))
> + return -EBUSY;
> +
> + list_add_tail(&col->list, &hists_stdio_column__list);
> + return 0;
> +}
> +
> +void hists_stdio_column__set_width(struct hists *hists)
> +{
> + struct hists_stdio_column *col;
> + unsigned i;
> +
> + for (i = 0; i < HISTC_STDIO_NR_COLS; i++) {
> + col = &hists_stdio_column__array[i];
> + hists__set_col_len(hists, i, col->col_width);
> + }
> +}
> +
> +void hists_stdio_column__register_global(void)
> +{
> +#define reg(idx) hists_stdio_column__register_idx(idx)
> +
> + if (symbol_conf.show_cpu_utilization) {
> + reg(HISTC_CPU_UTILIZATION_SYS);
> + reg(HISTC_CPU_UTILIZATION_US);
> + }
> +
> + if (perf_guest) {
> + reg(HISTC_CPU_UTILIZATION_GUEST_SYS);
> + reg(HISTC_CPU_UTILIZATION_GUEST_US);
> + }
> +
> + if (symbol_conf.show_nr_samples)
> + reg(HISTC_NR_SAMPLES);
> +
> + if (symbol_conf.show_total_period)
> + reg(HISTC_TOTAL_PERIOD);
> +#undef reg
> +}
>
> static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin)
> {
> @@ -291,114 +461,20 @@ static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
> return 0;
> }
>
> -static int hist_entry__period_snprintf(struct hist_entry *he, char *s,
> - size_t size, struct hists *pair_hists,
> - bool show_displacement, long displacement,
> - bool color, u64 total_period)
> +static int
> +hists_stdio_column__snprintf(struct hist_entry *he, char *s, size_t size,
> + struct hists *hists)
> {
> - u64 period, total, period_sys, period_us, period_guest_sys, period_guest_us;
> - u64 nr_events;
> const char *sep = symbol_conf.field_sep;
> - int ret;
> -
> - if (symbol_conf.exclude_other && !he->parent)
> - return 0;
> -
> - if (pair_hists) {
> - period = he->pair ? he->pair->period : 0;
> - nr_events = he->pair ? he->pair->nr_events : 0;
> - total = pair_hists->stats.total_period;
> - period_sys = he->pair ? he->pair->period_sys : 0;
> - period_us = he->pair ? he->pair->period_us : 0;
> - period_guest_sys = he->pair ? he->pair->period_guest_sys : 0;
> - period_guest_us = he->pair ? he->pair->period_guest_us : 0;
> - } else {
> - period = he->period;
> - nr_events = he->nr_events;
> - total = total_period;
> - period_sys = he->period_sys;
> - period_us = he->period_us;
> - period_guest_sys = he->period_guest_sys;
> - period_guest_us = he->period_guest_us;
> - }
> -
> - if (total) {
> - if (color)
> - ret = percent_color_snprintf(s, size,
> - sep ? "%.2f" : " %6.2f%%",
> - (period * 100.0) / total);
> - else
> - ret = scnprintf(s, size, sep ? "%.2f" : " %6.2f%%",
> - (period * 100.0) / total);
> - if (symbol_conf.show_cpu_utilization) {
> - ret += percent_color_snprintf(s + ret, size - ret,
> - sep ? "%.2f" : " %6.2f%%",
> - (period_sys * 100.0) / total);
> - ret += percent_color_snprintf(s + ret, size - ret,
> - sep ? "%.2f" : " %6.2f%%",
> - (period_us * 100.0) / total);
> - if (perf_guest) {
> - ret += percent_color_snprintf(s + ret,
> - size - ret,
> - sep ? "%.2f" : " %6.2f%%",
> - (period_guest_sys * 100.0) /
> - total);
> - ret += percent_color_snprintf(s + ret,
> - size - ret,
> - sep ? "%.2f" : " %6.2f%%",
> - (period_guest_us * 100.0) /
> - total);
> - }
> - }
> - } else
> - ret = scnprintf(s, size, sep ? "%" PRIu64 : "%12" PRIu64 " ", period);
> -
> - if (symbol_conf.show_nr_samples) {
> - if (sep)
> - ret += scnprintf(s + ret, size - ret, "%c%" PRIu64, *sep, nr_events);
> - else
> - ret += scnprintf(s + ret, size - ret, "%11" PRIu64, nr_events);
> - }
> -
> - if (symbol_conf.show_total_period) {
> - if (sep)
> - ret += scnprintf(s + ret, size - ret, "%c%" PRIu64, *sep, period);
> - else
> - ret += scnprintf(s + ret, size - ret, " %12" PRIu64, period);
> - }
> -
> - if (pair_hists) {
> - char bf[32];
> - double old_percent = 0, new_percent = 0, diff;
> -
> - if (total > 0)
> - old_percent = (period * 100.0) / total;
> - if (total_period > 0)
> - new_percent = (he->period * 100.0) / total_period;
> -
> - diff = new_percent - old_percent;
> -
> - if (fabs(diff) >= 0.01)
> - scnprintf(bf, sizeof(bf), "%+4.2F%%", diff);
> - else
> - scnprintf(bf, sizeof(bf), " ");
> -
> - if (sep)
> - ret += scnprintf(s + ret, size - ret, "%c%s", *sep, bf);
> - else
> - ret += scnprintf(s + ret, size - ret, "%11.11s", bf);
> + struct hists_stdio_column *col;
> + int ret = 0;
>
> - if (show_displacement) {
> - if (displacement)
> - scnprintf(bf, sizeof(bf), "%+4ld", displacement);
> - else
> - scnprintf(bf, sizeof(bf), " ");
> + ret = snprintf(s, size, " ");
>
> - if (sep)
> - ret += scnprintf(s + ret, size - ret, "%c%s", *sep, bf);
> - else
> - ret += scnprintf(s + ret, size - ret, "%6.6s", bf);
> - }
> + list_for_each_entry(col, &hists_stdio_column__list, list) {
> + ret += scnprintf(s + ret, size - ret, "%s", sep ?: " ");
> + ret += col->snprintf(he, s + ret, size - ret,
> + hists__col_len(hists, col->col_idx));
> }
>
> return ret;
> @@ -440,9 +516,8 @@ static size_t hist_entry__callchain_fprintf(struct hist_entry *he,
> }
>
> static int hist_entry__fprintf(struct hist_entry *he, size_t size,
> - struct hists *hists, struct hists *pair_hists,
> - bool show_displacement, long displacement,
> - u64 total_period, FILE *fp)
> + struct hists *hists, u64 total_period,
> + FILE *fp)
> {
> char bf[512];
> int ret;
> @@ -450,9 +525,8 @@ static int hist_entry__fprintf(struct hist_entry *he, size_t size,
> if (size == 0 || size > sizeof(bf))
> size = sizeof(bf);
>
> - ret = hist_entry__period_snprintf(he, bf, size, pair_hists,
> - show_displacement, displacement,
> - true, total_period);
> + ret = hists_stdio_column__snprintf(he, bf, size, hists);
> +
> hist_entry__sort_snprintf(he, bf + ret, size - ret, hists);
>
> ret = fprintf(fp, "%s\n", bf);
> @@ -464,138 +538,117 @@ static int hist_entry__fprintf(struct hist_entry *he, size_t size,
> return ret;
> }
>
> -size_t hists__fprintf(struct hists *hists, struct hists *pair,
> - bool show_displacement, bool show_header, int max_rows,
> - int max_cols, FILE *fp)
> +static void fprintf_header(FILE *fp, struct hists *hists,
> + const char *header, int col)
> {
> - struct sort_entry *se;
> - struct rb_node *nd;
> - size_t ret = 0;
> - u64 total_period;
> - long displacement = 0;
> - unsigned int width;
> - const char *sep = symbol_conf.field_sep;
> const char *col_width = symbol_conf.col_width_list_str;
> - int nr_rows = 0;
> -
> - init_rem_hits();
> -
> - if (!show_header)
> - goto print_entries;
> + const char *sep = symbol_conf.field_sep;
> + unsigned int width;
>
> - fprintf(fp, "# %s", pair ? "Baseline" : "Overhead");
> + if (sep) {
> + fprintf(fp, "%c%s", *sep, header);
> + return;
> + }
>
> - if (symbol_conf.show_cpu_utilization) {
> - if (sep) {
> - ret += fprintf(fp, "%csys", *sep);
> - ret += fprintf(fp, "%cus", *sep);
> - if (perf_guest) {
> - ret += fprintf(fp, "%cguest sys", *sep);
> - ret += fprintf(fp, "%cguest us", *sep);
> - }
> - } else {
> - ret += fprintf(fp, " sys ");
> - ret += fprintf(fp, " us ");
> - if (perf_guest) {
> - ret += fprintf(fp, " guest sys ");
> - ret += fprintf(fp, " guest us ");
> - }
> + width = strlen(header);
> + if (symbol_conf.col_width_list_str) {
> + if (col_width) {
> + hists__set_col_len(hists, col,
> + atoi(col_width));
> + col_width = strchr(col_width, ',');
> + if (col_width)
> + ++col_width;
> }
> }
>
> - if (symbol_conf.show_nr_samples) {
> - if (sep)
> - fprintf(fp, "%cSamples", *sep);
> - else
> - fputs(" Samples ", fp);
> - }
> + if (!hists__new_col_len(hists, col, width))
> + width = hists__col_len(hists, col);
>
> - if (symbol_conf.show_total_period) {
> - if (sep)
> - ret += fprintf(fp, "%cPeriod", *sep);
> - else
> - ret += fprintf(fp, " Period ");
> - }
> + fprintf(fp, " %*s", width, header);
> +}
>
> - if (pair) {
> - if (sep)
> - ret += fprintf(fp, "%cDelta", *sep);
> - else
> - ret += fprintf(fp, " Delta ");
> +static void fprintf_dots(FILE *fp, struct hists *hists,
> + const char *header, int col)
> +{
> + unsigned int width;
> + unsigned int i;
>
> - if (show_displacement) {
> - if (sep)
> - ret += fprintf(fp, "%cDisplacement", *sep);
> - else
> - ret += fprintf(fp, " Displ");
> - }
> - }
> + fprintf(fp, " ");
> + width = hists__col_len(hists, col);
> +
> + if (width == 0)
> + width = strlen(header);
> +
> + for (i = 0; i < width; i++)
> + fprintf(fp, ".");
> +}
> +
> +static int hists__fprintf_header(struct hists *hists, FILE *fp,
> + int max_rows, int max_cols __used)
> +{
> + struct sort_entry *se;
> + struct hists_stdio_column *col;
> + int nr_rows = 0;
> +
> + /*
> + * TODO Both fprintf_header and fprintf_dots should take
> + * max_cols and output data appropriatelly. Seems there was
> + * no need so far ;)
> + */
> +
> + /* First line - headers */
> + fprintf(fp, "# ");
> +
> + list_for_each_entry(col, &hists_stdio_column__list, list)
> + fprintf_header(fp, hists, col->header, col->col_idx);
>
> list_for_each_entry(se, &hist_entry__sort_list, list) {
> if (se->elide)
> continue;
> - if (sep) {
> - fprintf(fp, "%c%s", *sep, se->se_header);
> - continue;
> - }
> - width = strlen(se->se_header);
> - if (symbol_conf.col_width_list_str) {
> - if (col_width) {
> - hists__set_col_len(hists, se->se_width_idx,
> - atoi(col_width));
> - col_width = strchr(col_width, ',');
> - if (col_width)
> - ++col_width;
> - }
> - }
> - if (!hists__new_col_len(hists, se->se_width_idx, width))
> - width = hists__col_len(hists, se->se_width_idx);
> - fprintf(fp, " %*s", width, se->se_header);
> +
> + fprintf_header(fp, hists, se->se_header, se->se_width_idx);
> }
>
> fprintf(fp, "\n");
> +
> if (max_rows && ++nr_rows >= max_rows)
> - goto out;
> + return nr_rows;
>
> - if (sep)
> - goto print_entries;
> + if (symbol_conf.field_sep)
> + return nr_rows;
>
> - fprintf(fp, "# ........");
> - if (symbol_conf.show_cpu_utilization)
> - fprintf(fp, " ....... .......");
> - if (symbol_conf.show_nr_samples)
> - fprintf(fp, " ..........");
> - if (symbol_conf.show_total_period)
> - fprintf(fp, " ............");
> - if (pair) {
> - fprintf(fp, " ..........");
> - if (show_displacement)
> - fprintf(fp, " .....");
> - }
> - list_for_each_entry(se, &hist_entry__sort_list, list) {
> - unsigned int i;
> + /* Second line - dots */
> + fprintf(fp, "# ");
> +
> + list_for_each_entry(col, &hists_stdio_column__list, list)
> + fprintf_dots(fp, hists, col->header, col->col_idx);
>
> + list_for_each_entry(se, &hist_entry__sort_list, list) {
> if (se->elide)
> continue;
>
> - fprintf(fp, " ");
> - width = hists__col_len(hists, se->se_width_idx);
> - if (width == 0)
> - width = strlen(se->se_header);
> - for (i = 0; i < width; i++)
> - fprintf(fp, ".");
> + fprintf_dots(fp, hists, se->se_header, se->se_width_idx);
> }
>
> fprintf(fp, "\n");
> if (max_rows && ++nr_rows >= max_rows)
> - goto out;
> + return nr_rows;
>
> fprintf(fp, "#\n");
> - if (max_rows && ++nr_rows >= max_rows)
> - goto out;
> + if (max_rows)
> + ++nr_rows;
>
> -print_entries:
> - total_period = hists->stats.total_period;
> + return nr_rows;
> +}
> +
> +static size_t
> +hists__fprint_data(struct hists *hists, FILE *fp, int nr_rows,
> + int max_rows, int max_cols)
> +{
> + struct rb_node *nd;
> + size_t ret = 0;
> +
> + init_rem_hits();
>
> for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
> struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
> @@ -603,18 +656,12 @@ print_entries:
> if (h->filtered)
> continue;
>
> - if (show_displacement) {
> - if (h->pair != NULL)
> - displacement = ((long)h->pair->position -
> - (long)h->position);
> - else
> - displacement = 0;
> - }
> - ret += hist_entry__fprintf(h, max_cols, hists, pair, show_displacement,
> - displacement, total_period, fp);
> + ret += hist_entry__fprintf(h, max_cols, hists,
> + hists->stats.total_period,
> + fp);
>
> if (max_rows && ++nr_rows >= max_rows)
> - goto out;
> + break;
>
> if (h->ms.map == NULL && verbose > 1) {
> __map_groups__fprintf_maps(&h->thread->mg,
> @@ -622,12 +669,25 @@ print_entries:
> fprintf(fp, "%.10s end\n", graph_dotted_line);
> }
> }
> -out:
> - free(rem_sq_bracket);
>
> + free(rem_sq_bracket);
> return ret;
> }
>
> +size_t hists__fprintf(struct hists *hists, bool show_header,
> + int max_rows, int max_cols, FILE *fp)
> +{
> + int nr_rows = 0;
> +
> + if (show_header)
> + nr_rows = hists__fprintf_header(hists, fp, max_rows, max_cols);
> +
> + if (max_rows && nr_rows >= max_rows)
> + return 0;
> +
> + return hists__fprint_data(hists, fp, nr_rows, max_rows, max_cols);
> +}
> +
> size_t hists__fprintf_nr_events(struct hists *hists, FILE *fp)
> {
> int i;
> diff --git a/tools/perf/ui/stdio/hist.h b/tools/perf/ui/stdio/hist.h
> new file mode 100644
> index 0000000..8e15d88
> --- /dev/null
> +++ b/tools/perf/ui/stdio/hist.h
> @@ -0,0 +1,19 @@
> +#ifndef __PERF_UI_STDIO_HIST_H
> +#define __PERF_UI_STDIO_HIST_H
> +
> +#include <linux/list.h>
> +#include "../../util/hist.h"
> +
> +struct hists_stdio_column {
> + struct list_head list;
> + const char *header;
> + int col_idx;
> + int col_width;
> + int (*snprintf)(struct hist_entry *self, char *bf,
> + size_t size, unsigned int width);
> +};
> +
> +int hists_stdio_column__register_idx(int idx);
> +void hists_stdio_column__register_global(void);
> +void hists_stdio_column__set_width(struct hists *hists);
> +#endif /* __PERF_UI_STDIO_HIST_H */
> diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
> index 0ed0683..5fb5cd8 100644
> --- a/tools/perf/util/hist.c
> +++ b/tools/perf/util/hist.c
> @@ -5,6 +5,7 @@
> #include "session.h"
> #include "sort.h"
> #include <math.h>
> +#include "../ui/stdio/hist.h"
>
> static bool hists__filter_entry_by_dso(struct hists *hists,
> struct hist_entry *he);
> @@ -49,7 +50,9 @@ void hists__reset_col_len(struct hists *hists)
> {
> enum hist_column col;
>
> - for (col = 0; col < HISTC_NR_COLS; ++col)
> + hists_stdio_column__set_width(hists);
> +
> + for (col = HISTC_SYMBOL; col < HISTC_NR_COLS; ++col)
> hists__set_col_len(hists, col, 0);
> }
>
> diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
> index 2e650ff..36ff4c5 100644
> --- a/tools/perf/util/hist.h
> +++ b/tools/perf/util/hist.h
> @@ -36,6 +36,19 @@ struct events_stats {
> };
>
> enum hist_column {
> + /* stdio (hists_stdio_column__list) */
> + HISTC_OVERHEAD,
> + HISTC_BASELINE,
> + HISTC_CPU_UTILIZATION_SYS,
> + HISTC_CPU_UTILIZATION_US,
> + HISTC_CPU_UTILIZATION_GUEST_SYS,
> + HISTC_CPU_UTILIZATION_GUEST_US,
> + HISTC_NR_SAMPLES,
> + HISTC_TOTAL_PERIOD,
> + HISTC_DELTA,
> + HISTC_DISPLACEMENT,
> +
> + /* sorted (hist_entry__sort_list) */
> HISTC_SYMBOL,
> HISTC_DSO,
> HISTC_THREAD,
> @@ -49,6 +62,9 @@ enum hist_column {
> HISTC_DSO_TO,
> HISTC_SRCLINE,
> HISTC_NR_COLS, /* Last entry */
> +
> + /* Last stdio ui data column */
> + HISTC_STDIO_NR_COLS = HISTC_DISPLACEMENT + 1,
> };
>
> struct thread;
> @@ -98,8 +114,7 @@ void hists__output_recalc_col_len(struct hists *hists, int max_rows);
> void hists__inc_nr_events(struct hists *self, u32 type);
> size_t hists__fprintf_nr_events(struct hists *self, FILE *fp);
>
> -size_t hists__fprintf(struct hists *self, struct hists *pair,
> - bool show_displacement, bool show_header,
> +size_t hists__fprintf(struct hists *self, bool show_header,
> int max_rows, int max_cols, FILE *fp);
>
> int hist_entry__inc_addr_samples(struct hist_entry *self, int evidx, u64 addr);
--
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