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1/*
2 * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
3 *
4 * Refactored from builtin-top.c, see that files for further copyright notes.
5 *
6 * Released under the GPL v2. (and only v2, not any later version)
7 */
8
9#include "cpumap.h"
10#include "event.h"
11#include "evlist.h"
12#include "evsel.h"
13#include "parse-events.h"
14#include "symbol.h"
15#include "top.h"
16#include <inttypes.h>
17
18#define SNPRINTF(buf, size, fmt, args...) \
19({ \
20 size_t r = snprintf(buf, size, fmt, ## args); \
21 r > size ? size : r; \
22})
23
24size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size)
25{
26 float samples_per_sec = top->samples / top->delay_secs;
27 float ksamples_per_sec = top->kernel_samples / top->delay_secs;
28 float esamples_percent = (100.0 * top->exact_samples) / top->samples;
29 size_t ret = 0;
30
31 if (!perf_guest) {
32 ret = SNPRINTF(bf, size,
33 " PerfTop:%8.0f irqs/sec kernel:%4.1f%%"
34 " exact: %4.1f%% [", samples_per_sec,
35 100.0 - (100.0 * ((samples_per_sec - ksamples_per_sec) /
36 samples_per_sec)),
37 esamples_percent);
38 } else {
39 float us_samples_per_sec = top->us_samples / top->delay_secs;
40 float guest_kernel_samples_per_sec = top->guest_kernel_samples / top->delay_secs;
41 float guest_us_samples_per_sec = top->guest_us_samples / top->delay_secs;
42
43 ret = SNPRINTF(bf, size,
44 " PerfTop:%8.0f irqs/sec kernel:%4.1f%% us:%4.1f%%"
45 " guest kernel:%4.1f%% guest us:%4.1f%%"
46 " exact: %4.1f%% [", samples_per_sec,
47 100.0 - (100.0 * ((samples_per_sec - ksamples_per_sec) /
48 samples_per_sec)),
49 100.0 - (100.0 * ((samples_per_sec - us_samples_per_sec) /
50 samples_per_sec)),
51 100.0 - (100.0 * ((samples_per_sec -
52 guest_kernel_samples_per_sec) /
53 samples_per_sec)),
54 100.0 - (100.0 * ((samples_per_sec -
55 guest_us_samples_per_sec) /
56 samples_per_sec)),
57 esamples_percent);
58 }
59
60 if (top->evlist->nr_entries == 1) {
61 struct perf_evsel *first;
62 first = list_entry(top->evlist->entries.next, struct perf_evsel, node);
63 ret += SNPRINTF(bf + ret, size - ret, "%" PRIu64 "%s ",
64 (uint64_t)first->attr.sample_period,
65 top->freq ? "Hz" : "");
66 }
67
68 ret += SNPRINTF(bf + ret, size - ret, "%s", event_name(top->sym_evsel));
69
70 ret += SNPRINTF(bf + ret, size - ret, "], ");
71
72 if (top->target.pid)
73 ret += SNPRINTF(bf + ret, size - ret, " (target_pid: %s",
74 top->target.pid);
75 else if (top->target.tid)
76 ret += SNPRINTF(bf + ret, size - ret, " (target_tid: %s",
77 top->target.tid);
78 else if (top->target.uid_str != NULL)
79 ret += SNPRINTF(bf + ret, size - ret, " (uid: %s",
80 top->target.uid_str);
81 else
82 ret += SNPRINTF(bf + ret, size - ret, " (all");
83
84 if (top->target.cpu_list)
85 ret += SNPRINTF(bf + ret, size - ret, ", CPU%s: %s)",
86 top->evlist->cpus->nr > 1 ? "s" : "",
87 top->target.cpu_list);
88 else {
89 if (top->target.tid)
90 ret += SNPRINTF(bf + ret, size - ret, ")");
91 else
92 ret += SNPRINTF(bf + ret, size - ret, ", %d CPU%s)",
93 top->evlist->cpus->nr,
94 top->evlist->cpus->nr > 1 ? "s" : "");
95 }
96
97 return ret;
98}
99
100void perf_top__reset_sample_counters(struct perf_top *top)
101{
102 top->samples = top->us_samples = top->kernel_samples =
103 top->exact_samples = top->guest_kernel_samples =
104 top->guest_us_samples = 0;
105}
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
4 *
5 * Refactored from builtin-top.c, see that files for further copyright notes.
6 */
7
8#include "event.h"
9#include "evlist.h"
10#include "evsel.h"
11#include "parse-events.h"
12#include "symbol.h"
13#include "top.h"
14#include "util.h"
15#include <inttypes.h>
16
17#define SNPRINTF(buf, size, fmt, args...) \
18({ \
19 size_t r = snprintf(buf, size, fmt, ## args); \
20 r > size ? size : r; \
21})
22
23size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size)
24{
25 float samples_per_sec;
26 float ksamples_per_sec;
27 float esamples_percent;
28 struct record_opts *opts = &top->record_opts;
29 struct target *target = &opts->target;
30 size_t ret = 0;
31 int nr_cpus;
32
33 if (top->samples) {
34 samples_per_sec = top->samples / top->delay_secs;
35 ksamples_per_sec = top->kernel_samples / top->delay_secs;
36 esamples_percent = (100.0 * top->exact_samples) / top->samples;
37 } else {
38 samples_per_sec = ksamples_per_sec = esamples_percent = 0.0;
39 }
40
41 if (!perf_guest) {
42 float ksamples_percent = 0.0;
43
44 if (samples_per_sec)
45 ksamples_percent = (100.0 * ksamples_per_sec) /
46 samples_per_sec;
47 ret = SNPRINTF(bf, size,
48 " PerfTop:%8.0f irqs/sec kernel:%4.1f%%"
49 " exact: %4.1f%% lost: %" PRIu64 "/%" PRIu64 " drop: %" PRIu64 "/%" PRIu64 " [",
50 samples_per_sec, ksamples_percent, esamples_percent,
51 top->lost, top->lost_total, top->drop, top->drop_total);
52 } else {
53 float us_samples_per_sec = top->us_samples / top->delay_secs;
54 float guest_kernel_samples_per_sec = top->guest_kernel_samples / top->delay_secs;
55 float guest_us_samples_per_sec = top->guest_us_samples / top->delay_secs;
56
57 ret = SNPRINTF(bf, size,
58 " PerfTop:%8.0f irqs/sec kernel:%4.1f%% us:%4.1f%%"
59 " guest kernel:%4.1f%% guest us:%4.1f%%"
60 " exact: %4.1f%% [", samples_per_sec,
61 100.0 - (100.0 * ((samples_per_sec - ksamples_per_sec) /
62 samples_per_sec)),
63 100.0 - (100.0 * ((samples_per_sec - us_samples_per_sec) /
64 samples_per_sec)),
65 100.0 - (100.0 * ((samples_per_sec -
66 guest_kernel_samples_per_sec) /
67 samples_per_sec)),
68 100.0 - (100.0 * ((samples_per_sec -
69 guest_us_samples_per_sec) /
70 samples_per_sec)),
71 esamples_percent);
72 }
73
74 if (top->evlist->core.nr_entries == 1) {
75 struct evsel *first = evlist__first(top->evlist);
76 ret += SNPRINTF(bf + ret, size - ret, "%" PRIu64 "%s ",
77 (uint64_t)first->core.attr.sample_period,
78 opts->freq ? "Hz" : "");
79 }
80
81 ret += SNPRINTF(bf + ret, size - ret, "%s", evsel__name(top->sym_evsel));
82
83 ret += SNPRINTF(bf + ret, size - ret, "], ");
84
85 if (target->pid)
86 ret += SNPRINTF(bf + ret, size - ret, " (target_pid: %s",
87 target->pid);
88 else if (target->tid)
89 ret += SNPRINTF(bf + ret, size - ret, " (target_tid: %s",
90 target->tid);
91 else if (target->uid_str != NULL)
92 ret += SNPRINTF(bf + ret, size - ret, " (uid: %s",
93 target->uid_str);
94 else
95 ret += SNPRINTF(bf + ret, size - ret, " (all");
96
97 nr_cpus = perf_cpu_map__nr(top->evlist->core.user_requested_cpus);
98 if (target->cpu_list)
99 ret += SNPRINTF(bf + ret, size - ret, ", CPU%s: %s)",
100 nr_cpus > 1 ? "s" : "",
101 target->cpu_list);
102 else {
103 if (target->tid)
104 ret += SNPRINTF(bf + ret, size - ret, ")");
105 else
106 ret += SNPRINTF(bf + ret, size - ret, ", %d CPU%s)",
107 nr_cpus, nr_cpus > 1 ? "s" : "");
108 }
109
110 perf_top__reset_sample_counters(top);
111 return ret;
112}
113
114void perf_top__reset_sample_counters(struct perf_top *top)
115{
116 top->samples = top->us_samples = top->kernel_samples =
117 top->exact_samples = top->guest_kernel_samples =
118 top->guest_us_samples = top->lost = top->drop = 0;
119}