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Date: Thu, 17 May 2018 17:06:10 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Jin Yao <yao.jin@...ux.intel.com>
Cc: jolsa@...nel.org, peterz@...radead.org, mingo@...hat.com,
alexander.shishkin@...ux.intel.com, Linux-kernel@...r.kernel.org,
ak@...ux.intel.com, kan.liang@...el.com, yao.jin@...el.com
Subject: Re: [PATCH v1 2/2] perf annotate: Create hotkey 'c' to show max/min
cycles
Em Thu, May 17, 2018 at 10:58:38PM +0800, Jin Yao escreveu:
> In perf annotate view, a new hotkey 'c' is created for
> showing the max/min cycles.
I just changed everything from "max/min" to "min/max", as it looked
strange print the max first, thanks, applying.
- Arnaldo
> For example, when press 'c', the annotate view is:
>
> Percent│ IPC Cycle(max/min)
> │
> │
> │ Disassembly of section .text:
> │
> │ 000000000003aab0 <random@@GLIBC_2.2.5>:
> 8.22 │3.92 sub $0x18,%rsp
> │3.92 mov $0x1,%esi
> │3.92 xor %eax,%eax
> │3.92 cmpl $0x0,argp_program_version_hook@@G
> │3.92 1(2/1) ↓ je 20
> │ lock cmpxchg %esi,__abort_msg@@GLIBC_P
> │ ↓ jne 29
> │ ↓ jmp 43
> │1.10 20: cmpxchg %esi,__abort_msg@@GLIBC_PRIVATE+
> 8.93 │1.10 1(5/1) ↓ je 43
>
> When press 'c' again, the annotate view is switched back:
>
> Percent│ IPC Cycle
> │
> │
> │ Disassembly of section .text:
> │
> │ 000000000003aab0 <random@@GLIBC_2.2.5>:
> 8.22 │3.92 sub $0x18,%rsp
> │3.92 mov $0x1,%esi
> │3.92 xor %eax,%eax
> │3.92 cmpl $0x0,argp_program_version_hook@@GLIBC_2.2.5+0x
> │3.92 1 ↓ je 20
> │ lock cmpxchg %esi,__abort_msg@@GLIBC_PRIVATE+0x8a0
> │ ↓ jne 29
> │ ↓ jmp 43
> │1.10 20: cmpxchg %esi,__abort_msg@@GLIBC_PRIVATE+0x8a0
> 8.93 │1.10 1 ↓ je 43
>
> Signed-off-by: Jin Yao <yao.jin@...ux.intel.com>
> ---
> tools/perf/ui/browsers/annotate.c | 8 ++++++++
> tools/perf/util/annotate.c | 37 +++++++++++++++++++++++++++++++------
> tools/perf/util/annotate.h | 7 ++++++-
> 3 files changed, 45 insertions(+), 7 deletions(-)
>
> diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
> index 3781d74..f202a3f 100644
> --- a/tools/perf/ui/browsers/annotate.c
> +++ b/tools/perf/ui/browsers/annotate.c
> @@ -695,6 +695,7 @@ static int annotate_browser__run(struct annotate_browser *browser,
> "O Bump offset level (jump targets -> +call -> all -> cycle thru)\n"
> "s Toggle source code view\n"
> "t Circulate percent, total period, samples view\n"
> + "c Show max/min cycle\n"
> "/ Search string\n"
> "k Toggle line numbers\n"
> "P Print to [symbol_name].annotation file.\n"
> @@ -791,6 +792,13 @@ static int annotate_browser__run(struct annotate_browser *browser,
> notes->options->show_total_period = true;
> annotation__update_column_widths(notes);
> continue;
> + case 'c':
> + if (notes->options->show_maxmin_cycle)
> + notes->options->show_maxmin_cycle = false;
> + else
> + notes->options->show_maxmin_cycle = true;
> + annotation__update_column_widths(notes);
> + continue;
> case K_LEFT:
> case K_ESC:
> case 'q':
> diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
> index 934a172..17fff6f 100644
> --- a/tools/perf/util/annotate.c
> +++ b/tools/perf/util/annotate.c
> @@ -2495,13 +2495,38 @@ static void __annotation_line__write(struct annotation_line *al, struct annotati
> else
> obj__printf(obj, "%*s ", ANNOTATION__IPC_WIDTH - 1, "IPC");
>
> - if (al->cycles)
> - obj__printf(obj, "%*" PRIu64 " ",
> + if (!notes->options->show_maxmin_cycle) {
> + if (al->cycles)
> + obj__printf(obj, "%*" PRIu64 " ",
> ANNOTATION__CYCLES_WIDTH - 1, al->cycles);
> - else if (!show_title)
> - obj__printf(obj, "%*s", ANNOTATION__CYCLES_WIDTH, " ");
> - else
> - obj__printf(obj, "%*s ", ANNOTATION__CYCLES_WIDTH - 1, "Cycle");
> + else if (!show_title)
> + obj__printf(obj, "%*s",
> + ANNOTATION__CYCLES_WIDTH, " ");
> + else
> + obj__printf(obj, "%*s ",
> + ANNOTATION__CYCLES_WIDTH - 1,
> + "Cycle");
> + } else {
> + if (al->cycles) {
> + char str[32];
> +
> + scnprintf(str, sizeof(str),
> + "%" PRIu64 "(%" PRIu64 "/%" PRIu64 ")",
> + al->cycles, al->cycles_max,
> + al->cycles_min);
> +
> + obj__printf(obj, "%*s ",
> + ANNOTATION__MAXMIN_CYCLES_WIDTH - 1,
> + str);
> + } else if (!show_title)
> + obj__printf(obj, "%*s",
> + ANNOTATION__MAXMIN_CYCLES_WIDTH,
> + " ");
> + else
> + obj__printf(obj, "%*s ",
> + ANNOTATION__MAXMIN_CYCLES_WIDTH - 1,
> + "Cycle(max/min)");
> + }
> }
>
> obj__printf(obj, " ");
> diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
> index d50363d..4cafd63 100644
> --- a/tools/perf/util/annotate.h
> +++ b/tools/perf/util/annotate.h
> @@ -61,6 +61,7 @@ bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2);
>
> #define ANNOTATION__IPC_WIDTH 6
> #define ANNOTATION__CYCLES_WIDTH 6
> +#define ANNOTATION__MAXMIN_CYCLES_WIDTH 19
>
> struct annotation_options {
> bool hide_src_code,
> @@ -69,7 +70,8 @@ struct annotation_options {
> show_linenr,
> show_nr_jumps,
> show_nr_samples,
> - show_total_period;
> + show_total_period,
> + show_maxmin_cycle;
> u8 offset_level;
> };
>
> @@ -243,6 +245,9 @@ struct annotation {
>
> static inline int annotation__cycles_width(struct annotation *notes)
> {
> + if (notes->have_cycles && notes->options->show_maxmin_cycle)
> + return ANNOTATION__IPC_WIDTH + ANNOTATION__MAXMIN_CYCLES_WIDTH;
> +
> return notes->have_cycles ? ANNOTATION__IPC_WIDTH + ANNOTATION__CYCLES_WIDTH : 0;
> }
>
> --
> 2.7.4
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