hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

perf annotate: Create hotkey 'c' to show min/max cycles 

In the 'perf annotate' view, a new hotkey 'c' is created for showing the
min/max cycles.

For example, when press 'c', the annotate view is:

  Percent│ IPC     Cycle(min/max)
         │
         │
         │                             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@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1526569118-14217-3-git-send-email-yao.jin@linux.intel.com
[ Rename all maxmin to minmax ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jin Yao 2018-05-17 22:58:38 +08:00 committed by Arnaldo Carvalho de Melo
parent 48659ebf37
commit 3e71fc0319
3 changed files with 45 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
tools/perf/ui/browsers/annotate.c
View File

@ -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 min/max cycle\n"
"/ Search string\n"
"k Toggle line numbers\n"
"P Print to [symbol_name].annotation file.\n"
@ -791,6 +792,13 @@ show_sup_ins:
notes->options->show_total_period = true;
annotation__update_column_widths(notes);
continue;
case 'c':
if (notes->options->show_minmax_cycle)
notes->options->show_minmax_cycle = false;
else
notes->options->show_minmax_cycle = true;
annotation__update_column_widths(notes);
continue;
case K_LEFT:
case K_ESC:
case 'q':

37
tools/perf/util/annotate.c
View File

@ -2498,13 +2498,38 @@ 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_minmax_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_min,
al->cycles_max);
obj__printf(obj, "%*s ",
ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
str);
} else if (!show_title)
obj__printf(obj, "%*s",
ANNOTATION__MINMAX_CYCLES_WIDTH,
" ");
else
obj__printf(obj, "%*s ",
ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
"Cycle(min/max)");
}
}
obj__printf(obj, " ");

7
tools/perf/util/annotate.h
View File

@ -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__MINMAX_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_minmax_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_minmax_cycle)
return ANNOTATION__IPC_WIDTH + ANNOTATION__MINMAX_CYCLES_WIDTH;
return notes->have_cycles ? ANNOTATION__IPC_WIDTH + ANNOTATION__CYCLES_WIDTH : 0;
}