forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
118 lines
3.6 KiB
118 lines
3.6 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <[email protected]> |
|
* |
|
* Refactored from builtin-top.c, see that files for further copyright notes. |
|
*/ |
|
|
|
#include "event.h" |
|
#include "evlist.h" |
|
#include "evsel.h" |
|
#include "parse-events.h" |
|
#include "symbol.h" |
|
#include "top.h" |
|
#include "../perf.h" |
|
#include <inttypes.h> |
|
|
|
#define SNPRINTF(buf, size, fmt, args...) \ |
|
({ \ |
|
size_t r = snprintf(buf, size, fmt, ## args); \ |
|
r > size ? size : r; \ |
|
}) |
|
|
|
size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size) |
|
{ |
|
float samples_per_sec; |
|
float ksamples_per_sec; |
|
float esamples_percent; |
|
struct record_opts *opts = &top->record_opts; |
|
struct target *target = &opts->target; |
|
size_t ret = 0; |
|
|
|
if (top->samples) { |
|
samples_per_sec = top->samples / top->delay_secs; |
|
ksamples_per_sec = top->kernel_samples / top->delay_secs; |
|
esamples_percent = (100.0 * top->exact_samples) / top->samples; |
|
} else { |
|
samples_per_sec = ksamples_per_sec = esamples_percent = 0.0; |
|
} |
|
|
|
if (!perf_guest) { |
|
float ksamples_percent = 0.0; |
|
|
|
if (samples_per_sec) |
|
ksamples_percent = (100.0 * ksamples_per_sec) / |
|
samples_per_sec; |
|
ret = SNPRINTF(bf, size, |
|
" PerfTop:%8.0f irqs/sec kernel:%4.1f%%" |
|
" exact: %4.1f%% lost: %" PRIu64 "/%" PRIu64 " drop: %" PRIu64 "/%" PRIu64 " [", |
|
samples_per_sec, ksamples_percent, esamples_percent, |
|
top->lost, top->lost_total, top->drop, top->drop_total); |
|
} else { |
|
float us_samples_per_sec = top->us_samples / top->delay_secs; |
|
float guest_kernel_samples_per_sec = top->guest_kernel_samples / top->delay_secs; |
|
float guest_us_samples_per_sec = top->guest_us_samples / top->delay_secs; |
|
|
|
ret = SNPRINTF(bf, size, |
|
" PerfTop:%8.0f irqs/sec kernel:%4.1f%% us:%4.1f%%" |
|
" guest kernel:%4.1f%% guest us:%4.1f%%" |
|
" exact: %4.1f%% [", samples_per_sec, |
|
100.0 - (100.0 * ((samples_per_sec - ksamples_per_sec) / |
|
samples_per_sec)), |
|
100.0 - (100.0 * ((samples_per_sec - us_samples_per_sec) / |
|
samples_per_sec)), |
|
100.0 - (100.0 * ((samples_per_sec - |
|
guest_kernel_samples_per_sec) / |
|
samples_per_sec)), |
|
100.0 - (100.0 * ((samples_per_sec - |
|
guest_us_samples_per_sec) / |
|
samples_per_sec)), |
|
esamples_percent); |
|
} |
|
|
|
if (top->evlist->core.nr_entries == 1) { |
|
struct evsel *first = evlist__first(top->evlist); |
|
ret += SNPRINTF(bf + ret, size - ret, "%" PRIu64 "%s ", |
|
(uint64_t)first->core.attr.sample_period, |
|
opts->freq ? "Hz" : ""); |
|
} |
|
|
|
ret += SNPRINTF(bf + ret, size - ret, "%s", evsel__name(top->sym_evsel)); |
|
|
|
ret += SNPRINTF(bf + ret, size - ret, "], "); |
|
|
|
if (target->pid) |
|
ret += SNPRINTF(bf + ret, size - ret, " (target_pid: %s", |
|
target->pid); |
|
else if (target->tid) |
|
ret += SNPRINTF(bf + ret, size - ret, " (target_tid: %s", |
|
target->tid); |
|
else if (target->uid_str != NULL) |
|
ret += SNPRINTF(bf + ret, size - ret, " (uid: %s", |
|
target->uid_str); |
|
else |
|
ret += SNPRINTF(bf + ret, size - ret, " (all"); |
|
|
|
if (target->cpu_list) |
|
ret += SNPRINTF(bf + ret, size - ret, ", CPU%s: %s)", |
|
top->evlist->core.cpus->nr > 1 ? "s" : "", |
|
target->cpu_list); |
|
else { |
|
if (target->tid) |
|
ret += SNPRINTF(bf + ret, size - ret, ")"); |
|
else |
|
ret += SNPRINTF(bf + ret, size - ret, ", %d CPU%s)", |
|
top->evlist->core.cpus->nr, |
|
top->evlist->core.cpus->nr > 1 ? "s" : ""); |
|
} |
|
|
|
perf_top__reset_sample_counters(top); |
|
return ret; |
|
} |
|
|
|
void perf_top__reset_sample_counters(struct perf_top *top) |
|
{ |
|
top->samples = top->us_samples = top->kernel_samples = |
|
top->exact_samples = top->guest_kernel_samples = |
|
top->guest_us_samples = top->lost = top->drop = 0; |
|
}
|
|
|