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-rw-r--r--tools/perf/util/top.c193
1 files changed, 36 insertions, 157 deletions
diff --git a/tools/perf/util/top.c b/tools/perf/util/top.c
index a11f60735a1..8e517def925 100644
--- a/tools/perf/util/top.c
+++ b/tools/perf/util/top.c
@@ -15,52 +15,6 @@
#include "top.h"
#include <inttypes.h>
-/*
- * Ordering weight: count-1 * count-2 * ... / count-n
- */
-static double sym_weight(const struct sym_entry *sym, struct perf_top *top)
-{
- double weight = sym->snap_count;
- int counter;
-
- if (!top->display_weighted)
- return weight;
-
- for (counter = 1; counter < top->evlist->nr_entries - 1; counter++)
- weight *= sym->count[counter];
-
- weight /= (sym->count[counter] + 1);
-
- return weight;
-}
-
-static void perf_top__remove_active_sym(struct perf_top *top, struct sym_entry *syme)
-{
- pthread_mutex_lock(&top->active_symbols_lock);
- list_del_init(&syme->node);
- pthread_mutex_unlock(&top->active_symbols_lock);
-}
-
-static void rb_insert_active_sym(struct rb_root *tree, struct sym_entry *se)
-{
- struct rb_node **p = &tree->rb_node;
- struct rb_node *parent = NULL;
- struct sym_entry *iter;
-
- while (*p != NULL) {
- parent = *p;
- iter = rb_entry(parent, struct sym_entry, rb_node);
-
- if (se->weight > iter->weight)
- p = &(*p)->rb_left;
- else
- p = &(*p)->rb_right;
- }
-
- rb_link_node(&se->rb_node, parent, p);
- rb_insert_color(&se->rb_node, tree);
-}
-
#define SNPRINTF(buf, size, fmt, args...) \
({ \
size_t r = snprintf(buf, size, fmt, ## args); \
@@ -69,19 +23,31 @@ static void rb_insert_active_sym(struct rb_root *tree, struct sym_entry *se)
size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size)
{
- struct perf_evsel *counter;
- float samples_per_sec = top->samples / top->delay_secs;
- float ksamples_per_sec = top->kernel_samples / top->delay_secs;
- float esamples_percent = (100.0 * top->exact_samples) / top->samples;
+ 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%% [", samples_per_sec,
- 100.0 - (100.0 * ((samples_per_sec - ksamples_per_sec) /
- samples_per_sec)),
- esamples_percent);
+ ksamples_percent, esamples_percent);
} 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;
@@ -104,52 +70,35 @@ size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size)
esamples_percent);
}
- if (top->evlist->nr_entries == 1 || !top->display_weighted) {
- struct perf_evsel *first;
- first = list_entry(top->evlist->entries.next, struct perf_evsel, node);
+ if (top->evlist->nr_entries == 1) {
+ struct perf_evsel *first = perf_evlist__first(top->evlist);
ret += SNPRINTF(bf + ret, size - ret, "%" PRIu64 "%s ",
(uint64_t)first->attr.sample_period,
- top->freq ? "Hz" : "");
+ opts->freq ? "Hz" : "");
}
- if (!top->display_weighted) {
- ret += SNPRINTF(bf + ret, size - ret, "%s",
- event_name(top->sym_evsel));
- } else {
- /*
- * Don't let events eat all the space. Leaving 30 bytes
- * for the rest should be enough.
- */
- size_t last_pos = size - 30;
-
- list_for_each_entry(counter, &top->evlist->entries, node) {
- ret += SNPRINTF(bf + ret, size - ret, "%s%s",
- counter->idx ? "/" : "",
- event_name(counter));
- if (ret > last_pos) {
- sprintf(bf + last_pos - 3, "..");
- ret = last_pos - 1;
- break;
- }
- }
- }
+ ret += SNPRINTF(bf + ret, size - ret, "%s", perf_evsel__name(top->sym_evsel));
ret += SNPRINTF(bf + ret, size - ret, "], ");
- if (top->target_pid != -1)
- ret += SNPRINTF(bf + ret, size - ret, " (target_pid: %d",
- top->target_pid);
- else if (top->target_tid != -1)
- ret += SNPRINTF(bf + ret, size - ret, " (target_tid: %d",
- top->target_tid);
+ 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 (top->cpu_list)
+ if (target->cpu_list)
ret += SNPRINTF(bf + ret, size - ret, ", CPU%s: %s)",
- top->evlist->cpus->nr > 1 ? "s" : "", top->cpu_list);
+ top->evlist->cpus->nr > 1 ? "s" : "",
+ target->cpu_list);
else {
- if (top->target_tid != -1)
+ if (target->tid)
ret += SNPRINTF(bf + ret, size - ret, ")");
else
ret += SNPRINTF(bf + ret, size - ret, ", %d CPU%s)",
@@ -166,73 +115,3 @@ void perf_top__reset_sample_counters(struct perf_top *top)
top->exact_samples = top->guest_kernel_samples =
top->guest_us_samples = 0;
}
-
-float perf_top__decay_samples(struct perf_top *top, struct rb_root *root)
-{
- struct sym_entry *syme, *n;
- float sum_ksamples = 0.0;
- int snap = !top->display_weighted ? top->sym_evsel->idx : 0, j;
-
- /* Sort the active symbols */
- pthread_mutex_lock(&top->active_symbols_lock);
- syme = list_entry(top->active_symbols.next, struct sym_entry, node);
- pthread_mutex_unlock(&top->active_symbols_lock);
-
- top->rb_entries = 0;
- list_for_each_entry_safe_from(syme, n, &top->active_symbols, node) {
- syme->snap_count = syme->count[snap];
- if (syme->snap_count != 0) {
-
- if ((top->hide_user_symbols &&
- syme->map->dso->kernel == DSO_TYPE_USER) ||
- (top->hide_kernel_symbols &&
- syme->map->dso->kernel == DSO_TYPE_KERNEL)) {
- perf_top__remove_active_sym(top, syme);
- continue;
- }
- syme->weight = sym_weight(syme, top);
-
- if ((int)syme->snap_count >= top->count_filter) {
- rb_insert_active_sym(root, syme);
- ++top->rb_entries;
- }
- sum_ksamples += syme->snap_count;
-
- for (j = 0; j < top->evlist->nr_entries; j++)
- syme->count[j] = top->zero ? 0 : syme->count[j] * 7 / 8;
- } else
- perf_top__remove_active_sym(top, syme);
- }
-
- return sum_ksamples;
-}
-
-/*
- * Find the longest symbol name that will be displayed
- */
-void perf_top__find_widths(struct perf_top *top, struct rb_root *root,
- int *dso_width, int *dso_short_width, int *sym_width)
-{
- struct rb_node *nd;
- int printed = 0;
-
- *sym_width = *dso_width = *dso_short_width = 0;
-
- for (nd = rb_first(root); nd; nd = rb_next(nd)) {
- struct sym_entry *syme = rb_entry(nd, struct sym_entry, rb_node);
- struct symbol *sym = sym_entry__symbol(syme);
-
- if (++printed > top->print_entries ||
- (int)syme->snap_count < top->count_filter)
- continue;
-
- if (syme->map->dso->long_name_len > *dso_width)
- *dso_width = syme->map->dso->long_name_len;
-
- if (syme->map->dso->short_name_len > *dso_short_width)
- *dso_short_width = syme->map->dso->short_name_len;
-
- if (sym->namelen > *sym_width)
- *sym_width = sym->namelen;
- }
-}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-14 03:11:13 +0000