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Date: Sat, 2 Aug 2014 10:30:26 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Ingo Molnar <mingo@...nel.org>,
Paul Mackerras <paulus@...ba.org>,
Namhyung Kim <namhyung.kim@....com>,
LKML <linux-kernel@...r.kernel.org>, Jiri Olsa <jolsa@...hat.com>
Subject: Re: [PATCH 2/8] perf tools: Make __hpp__fmt() receive an additional
len argument
Em Thu, Jul 31, 2014 at 02:47:36PM +0900, Namhyung Kim escreveu:
> So that it can properly handle alignment requirements later. To do
> that, add percent_color_len_snprintf() fucntion to help coloring of
> overhead columns.
Can you elaborate on this description? What is not possible to do before
this patch?
Perhaps a formatted line before this patch and then the same line
formatted after the patch?
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> ---
> tools/perf/ui/browsers/hists.c | 14 ++++++++------
> tools/perf/ui/gtk/hists.c | 8 +++++---
> tools/perf/ui/hist.c | 43 +++++++++++++++++++++---------------------
> tools/perf/util/color.c | 16 ++++++++++++++++
> tools/perf/util/color.h | 1 +
> tools/perf/util/hist.h | 4 ++--
> 6 files changed, 54 insertions(+), 32 deletions(-)
>
> diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
> index a94b11fc5e00..02507ba944e3 100644
> --- a/tools/perf/ui/browsers/hists.c
> +++ b/tools/perf/ui/browsers/hists.c
> @@ -653,17 +653,18 @@ struct hpp_arg {
> static int __hpp__slsmg_color_printf(struct perf_hpp *hpp, const char *fmt, ...)
> {
> struct hpp_arg *arg = hpp->ptr;
> - int ret;
> + int ret, len;
> va_list args;
> double percent;
>
> va_start(args, fmt);
> + len = va_arg(args, int);
> percent = va_arg(args, double);
> va_end(args);
>
> ui_browser__set_percent_color(arg->b, percent, arg->current_entry);
>
> - ret = scnprintf(hpp->buf, hpp->size, fmt, percent);
> + ret = scnprintf(hpp->buf, hpp->size, fmt, len, percent);
> slsmg_printf("%s", hpp->buf);
>
> advance_hpp(hpp, ret);
> @@ -681,7 +682,7 @@ hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,\
> struct perf_hpp *hpp, \
> struct hist_entry *he) \
> { \
> - return __hpp__fmt(hpp, he, __hpp_get_##_field, " %6.2f%%", \
> + return __hpp__fmt(hpp, he, __hpp_get_##_field, " %*.2f%%", 6, \
> __hpp__slsmg_color_printf, true); \
> }
>
> @@ -697,13 +698,14 @@ hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,\
> struct hist_entry *he) \
> { \
> if (!symbol_conf.cumulate_callchain) { \
> - int ret = scnprintf(hpp->buf, hpp->size, "%8s", "N/A"); \
> + int ret = scnprintf(hpp->buf, hpp->size, \
> + "%*s", 8, "N/A"); \
> slsmg_printf("%s", hpp->buf); \
> \
> return ret; \
> } \
> - return __hpp__fmt(hpp, he, __hpp_get_acc_##_field, " %6.2f%%", \
> - __hpp__slsmg_color_printf, true); \
> + return __hpp__fmt(hpp, he, __hpp_get_acc_##_field, " %*.2f%%", \
> + 6, __hpp__slsmg_color_printf, true); \
> }
>
> __HPP_COLOR_PERCENT_FN(overhead, period)
> diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
> index 6ca60e482cdc..91f6cd7d2312 100644
> --- a/tools/perf/ui/gtk/hists.c
> +++ b/tools/perf/ui/gtk/hists.c
> @@ -11,6 +11,7 @@
> static int __percent_color_snprintf(struct perf_hpp *hpp, const char *fmt, ...)
> {
> int ret = 0;
> + int len;
> va_list args;
> double percent;
> const char *markup;
> @@ -18,6 +19,7 @@ static int __percent_color_snprintf(struct perf_hpp *hpp, const char *fmt, ...)
> size_t size = hpp->size;
>
> va_start(args, fmt);
> + len = va_arg(args, int);
> percent = va_arg(args, double);
> va_end(args);
>
> @@ -25,7 +27,7 @@ static int __percent_color_snprintf(struct perf_hpp *hpp, const char *fmt, ...)
> if (markup)
> ret += scnprintf(buf, size, markup);
>
> - ret += scnprintf(buf + ret, size - ret, fmt, percent);
> + ret += scnprintf(buf + ret, size - ret, fmt, len, percent);
>
> if (markup)
> ret += scnprintf(buf + ret, size - ret, "</span>");
> @@ -43,7 +45,7 @@ static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,
> struct perf_hpp *hpp, \
> struct hist_entry *he) \
> { \
> - return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%", \
> + return __hpp__fmt(hpp, he, he_get_##_field, " %*.2f%%", 6, \
> __percent_color_snprintf, true); \
> }
>
> @@ -57,7 +59,7 @@ static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,
> struct perf_hpp *hpp, \
> struct hist_entry *he) \
> { \
> - return __hpp__fmt_acc(hpp, he, he_get_acc_##_field, " %6.2f%%", \
> + return __hpp__fmt_acc(hpp, he, he_get_acc_##_field, " %*.2f%%", 6, \
> __percent_color_snprintf, true); \
> }
>
> diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
> index 498adb23c02e..c6cffbd0b0e1 100644
> --- a/tools/perf/ui/hist.c
> +++ b/tools/perf/ui/hist.c
> @@ -16,7 +16,7 @@
> })
>
> int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
> - hpp_field_fn get_field, const char *fmt,
> + hpp_field_fn get_field, const char *fmt, int len,
> hpp_snprint_fn print_fn, bool fmt_percent)
> {
> int ret;
> @@ -32,9 +32,9 @@ int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
> if (total)
> percent = 100.0 * get_field(he) / total;
>
> - ret = hpp__call_print_fn(hpp, print_fn, fmt, percent);
> + ret = hpp__call_print_fn(hpp, print_fn, fmt, len, percent);
> } else
> - ret = hpp__call_print_fn(hpp, print_fn, fmt, get_field(he));
> + ret = hpp__call_print_fn(hpp, print_fn, fmt, len, get_field(he));
>
> if (perf_evsel__is_group_event(evsel)) {
> int prev_idx, idx_delta;
> @@ -60,19 +60,19 @@ int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
> */
> if (fmt_percent) {
> ret += hpp__call_print_fn(hpp, print_fn,
> - fmt, 0.0);
> + fmt, len, 0.0);
> } else {
> ret += hpp__call_print_fn(hpp, print_fn,
> - fmt, 0ULL);
> + fmt, len, 0ULL);
> }
> }
>
> if (fmt_percent) {
> - ret += hpp__call_print_fn(hpp, print_fn, fmt,
> + ret += hpp__call_print_fn(hpp, print_fn, fmt, len,
> 100.0 * period / total);
> } else {
> ret += hpp__call_print_fn(hpp, print_fn, fmt,
> - period);
> + len, period);
> }
>
> prev_idx = perf_evsel__group_idx(evsel);
> @@ -86,10 +86,10 @@ int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
> */
> if (fmt_percent) {
> ret += hpp__call_print_fn(hpp, print_fn,
> - fmt, 0.0);
> + fmt, len, 0.0);
> } else {
> ret += hpp__call_print_fn(hpp, print_fn,
> - fmt, 0ULL);
> + fmt, len, 0ULL);
> }
> }
> }
> @@ -105,7 +105,7 @@ int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
> }
>
> int __hpp__fmt_acc(struct perf_hpp *hpp, struct hist_entry *he,
> - hpp_field_fn get_field, const char *fmt,
> + hpp_field_fn get_field, const char *fmt, int len,
> hpp_snprint_fn print_fn, bool fmt_percent)
> {
> if (!symbol_conf.cumulate_callchain) {
> @@ -113,7 +113,7 @@ int __hpp__fmt_acc(struct perf_hpp *hpp, struct hist_entry *he,
> fmt_percent ? 8 : 12, "N/A");
> }
>
> - return __hpp__fmt(hpp, he, get_field, fmt, print_fn, fmt_percent);
> + return __hpp__fmt(hpp, he, get_field, fmt, len, print_fn, fmt_percent);
> }
>
> static int field_cmp(u64 field_a, u64 field_b)
> @@ -221,11 +221,12 @@ static int hpp_color_scnprintf(struct perf_hpp *hpp, const char *fmt, ...)
> va_list args;
> ssize_t ssize = hpp->size;
> double percent;
> - int ret;
> + int ret, len;
>
> va_start(args, fmt);
> + len = va_arg(args, int);
> percent = va_arg(args, double);
> - ret = value_color_snprintf(hpp->buf, hpp->size, fmt, percent);
> + ret = percent_color_len_snprintf(hpp->buf, hpp->size, fmt, len, percent);
> va_end(args);
>
> return (ret >= ssize) ? (ssize - 1) : ret;
> @@ -253,7 +254,7 @@ static u64 he_get_##_field(struct hist_entry *he) \
> static int hpp__color_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \
> struct perf_hpp *hpp, struct hist_entry *he) \
> { \
> - return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%", \
> + return __hpp__fmt(hpp, he, he_get_##_field, " %*.2f%%", 6, \
> hpp_color_scnprintf, true); \
> }
>
> @@ -261,8 +262,8 @@ static int hpp__color_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \
> static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused, \
> struct perf_hpp *hpp, struct hist_entry *he) \
> { \
> - const char *fmt = symbol_conf.field_sep ? " %.2f" : " %6.2f%%"; \
> - return __hpp__fmt(hpp, he, he_get_##_field, fmt, \
> + int len = symbol_conf.field_sep ? 1 : 6; \
> + return __hpp__fmt(hpp, he, he_get_##_field, " %*.2f%%", len, \
> hpp_entry_scnprintf, true); \
> }
>
> @@ -281,7 +282,7 @@ static u64 he_get_acc_##_field(struct hist_entry *he) \
> static int hpp__color_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \
> struct perf_hpp *hpp, struct hist_entry *he) \
> { \
> - return __hpp__fmt_acc(hpp, he, he_get_acc_##_field, " %6.2f%%", \
> + return __hpp__fmt_acc(hpp, he, he_get_acc_##_field, " %*.2f%%", 6, \
> hpp_color_scnprintf, true); \
> }
>
> @@ -289,8 +290,8 @@ static int hpp__color_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \
> static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused, \
> struct perf_hpp *hpp, struct hist_entry *he) \
> { \
> - const char *fmt = symbol_conf.field_sep ? " %.2f" : " %6.2f%%"; \
> - return __hpp__fmt_acc(hpp, he, he_get_acc_##_field, fmt, \
> + int len = symbol_conf.field_sep ? 1 : 6; \
> + return __hpp__fmt_acc(hpp, he, he_get_##_field, " %*.2f%%", len, \
> hpp_entry_scnprintf, true); \
> }
>
> @@ -309,8 +310,8 @@ static u64 he_get_raw_##_field(struct hist_entry *he) \
> static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused, \
> struct perf_hpp *hpp, struct hist_entry *he) \
> { \
> - const char *fmt = symbol_conf.field_sep ? " %"PRIu64 : " %11"PRIu64; \
> - return __hpp__fmt(hpp, he, he_get_raw_##_field, fmt, \
> + int len = symbol_conf.field_sep ? 1 : 11; \
> + return __hpp__fmt(hpp, he, he_get_raw_##_field, " %*"PRIu64, len, \
> hpp_entry_scnprintf, false); \
> }
>
> diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c
> index 87b8672eb413..f4654183d391 100644
> --- a/tools/perf/util/color.c
> +++ b/tools/perf/util/color.c
> @@ -335,3 +335,19 @@ int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...)
> va_end(args);
> return value_color_snprintf(bf, size, fmt, percent);
> }
> +
> +int percent_color_len_snprintf(char *bf, size_t size, const char *fmt, ...)
> +{
> + va_list args;
> + int len;
> + double percent;
> + const char *color;
> +
> + va_start(args, fmt);
> + len = va_arg(args, int);
> + percent = va_arg(args, double);
> + va_end(args);
> +
> + color = get_percent_color(percent);
> + return color_snprintf(bf, size, color, fmt, len, percent);
> +}
> diff --git a/tools/perf/util/color.h b/tools/perf/util/color.h
> index 7ff30a62a132..0a594b8a0c26 100644
> --- a/tools/perf/util/color.h
> +++ b/tools/perf/util/color.h
> @@ -41,6 +41,7 @@ int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...);
> int color_fwrite_lines(FILE *fp, const char *color, size_t count, const char *buf);
> int value_color_snprintf(char *bf, size_t size, const char *fmt, double value);
> int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...);
> +int percent_color_len_snprintf(char *bf, size_t size, const char *fmt, ...);
> int percent_color_fprintf(FILE *fp, const char *fmt, double percent);
> const char *get_percent_color(double percent);
>
> diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
> index 742f49a85725..13d074db9ef1 100644
> --- a/tools/perf/util/hist.h
> +++ b/tools/perf/util/hist.h
> @@ -267,10 +267,10 @@ typedef int (*hpp_callback_fn)(struct perf_hpp *hpp, bool front);
> typedef int (*hpp_snprint_fn)(struct perf_hpp *hpp, const char *fmt, ...);
>
> int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
> - hpp_field_fn get_field, const char *fmt,
> + hpp_field_fn get_field, const char *fmt, int len,
> hpp_snprint_fn print_fn, bool fmt_percent);
> int __hpp__fmt_acc(struct perf_hpp *hpp, struct hist_entry *he,
> - hpp_field_fn get_field, const char *fmt,
> + hpp_field_fn get_field, const char *fmt, int len,
> hpp_snprint_fn print_fn, bool fmt_percent);
>
> static inline void advance_hpp(struct perf_hpp *hpp, int inc)
> --
> 2.0.0
--
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