mirror of https://gitee.com/openkylin/linux.git
1645 lines
38 KiB
C
1645 lines
38 KiB
C
#include "util.h"
|
|
#include "build-id.h"
|
|
#include "hist.h"
|
|
#include "session.h"
|
|
#include "sort.h"
|
|
#include "evlist.h"
|
|
#include "evsel.h"
|
|
#include "annotate.h"
|
|
#include "ui/progress.h"
|
|
#include <math.h>
|
|
|
|
static bool hists__filter_entry_by_dso(struct hists *hists,
|
|
struct hist_entry *he);
|
|
static bool hists__filter_entry_by_thread(struct hists *hists,
|
|
struct hist_entry *he);
|
|
static bool hists__filter_entry_by_symbol(struct hists *hists,
|
|
struct hist_entry *he);
|
|
static bool hists__filter_entry_by_socket(struct hists *hists,
|
|
struct hist_entry *he);
|
|
|
|
u16 hists__col_len(struct hists *hists, enum hist_column col)
|
|
{
|
|
return hists->col_len[col];
|
|
}
|
|
|
|
void hists__set_col_len(struct hists *hists, enum hist_column col, u16 len)
|
|
{
|
|
hists->col_len[col] = len;
|
|
}
|
|
|
|
bool hists__new_col_len(struct hists *hists, enum hist_column col, u16 len)
|
|
{
|
|
if (len > hists__col_len(hists, col)) {
|
|
hists__set_col_len(hists, col, len);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void hists__reset_col_len(struct hists *hists)
|
|
{
|
|
enum hist_column col;
|
|
|
|
for (col = 0; col < HISTC_NR_COLS; ++col)
|
|
hists__set_col_len(hists, col, 0);
|
|
}
|
|
|
|
static void hists__set_unres_dso_col_len(struct hists *hists, int dso)
|
|
{
|
|
const unsigned int unresolved_col_width = BITS_PER_LONG / 4;
|
|
|
|
if (hists__col_len(hists, dso) < unresolved_col_width &&
|
|
!symbol_conf.col_width_list_str && !symbol_conf.field_sep &&
|
|
!symbol_conf.dso_list)
|
|
hists__set_col_len(hists, dso, unresolved_col_width);
|
|
}
|
|
|
|
void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
|
|
{
|
|
const unsigned int unresolved_col_width = BITS_PER_LONG / 4;
|
|
int symlen;
|
|
u16 len;
|
|
|
|
/*
|
|
* +4 accounts for '[x] ' priv level info
|
|
* +2 accounts for 0x prefix on raw addresses
|
|
* +3 accounts for ' y ' symtab origin info
|
|
*/
|
|
if (h->ms.sym) {
|
|
symlen = h->ms.sym->namelen + 4;
|
|
if (verbose)
|
|
symlen += BITS_PER_LONG / 4 + 2 + 3;
|
|
hists__new_col_len(hists, HISTC_SYMBOL, symlen);
|
|
} else {
|
|
symlen = unresolved_col_width + 4 + 2;
|
|
hists__new_col_len(hists, HISTC_SYMBOL, symlen);
|
|
hists__set_unres_dso_col_len(hists, HISTC_DSO);
|
|
}
|
|
|
|
len = thread__comm_len(h->thread);
|
|
if (hists__new_col_len(hists, HISTC_COMM, len))
|
|
hists__set_col_len(hists, HISTC_THREAD, len + 6);
|
|
|
|
if (h->ms.map) {
|
|
len = dso__name_len(h->ms.map->dso);
|
|
hists__new_col_len(hists, HISTC_DSO, len);
|
|
}
|
|
|
|
if (h->parent)
|
|
hists__new_col_len(hists, HISTC_PARENT, h->parent->namelen);
|
|
|
|
if (h->branch_info) {
|
|
if (h->branch_info->from.sym) {
|
|
symlen = (int)h->branch_info->from.sym->namelen + 4;
|
|
if (verbose)
|
|
symlen += BITS_PER_LONG / 4 + 2 + 3;
|
|
hists__new_col_len(hists, HISTC_SYMBOL_FROM, symlen);
|
|
|
|
symlen = dso__name_len(h->branch_info->from.map->dso);
|
|
hists__new_col_len(hists, HISTC_DSO_FROM, symlen);
|
|
} else {
|
|
symlen = unresolved_col_width + 4 + 2;
|
|
hists__new_col_len(hists, HISTC_SYMBOL_FROM, symlen);
|
|
hists__set_unres_dso_col_len(hists, HISTC_DSO_FROM);
|
|
}
|
|
|
|
if (h->branch_info->to.sym) {
|
|
symlen = (int)h->branch_info->to.sym->namelen + 4;
|
|
if (verbose)
|
|
symlen += BITS_PER_LONG / 4 + 2 + 3;
|
|
hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen);
|
|
|
|
symlen = dso__name_len(h->branch_info->to.map->dso);
|
|
hists__new_col_len(hists, HISTC_DSO_TO, symlen);
|
|
} else {
|
|
symlen = unresolved_col_width + 4 + 2;
|
|
hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen);
|
|
hists__set_unres_dso_col_len(hists, HISTC_DSO_TO);
|
|
}
|
|
}
|
|
|
|
if (h->mem_info) {
|
|
if (h->mem_info->daddr.sym) {
|
|
symlen = (int)h->mem_info->daddr.sym->namelen + 4
|
|
+ unresolved_col_width + 2;
|
|
hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL,
|
|
symlen);
|
|
hists__new_col_len(hists, HISTC_MEM_DCACHELINE,
|
|
symlen + 1);
|
|
} else {
|
|
symlen = unresolved_col_width + 4 + 2;
|
|
hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL,
|
|
symlen);
|
|
hists__new_col_len(hists, HISTC_MEM_DCACHELINE,
|
|
symlen);
|
|
}
|
|
|
|
if (h->mem_info->iaddr.sym) {
|
|
symlen = (int)h->mem_info->iaddr.sym->namelen + 4
|
|
+ unresolved_col_width + 2;
|
|
hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL,
|
|
symlen);
|
|
} else {
|
|
symlen = unresolved_col_width + 4 + 2;
|
|
hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL,
|
|
symlen);
|
|
}
|
|
|
|
if (h->mem_info->daddr.map) {
|
|
symlen = dso__name_len(h->mem_info->daddr.map->dso);
|
|
hists__new_col_len(hists, HISTC_MEM_DADDR_DSO,
|
|
symlen);
|
|
} else {
|
|
symlen = unresolved_col_width + 4 + 2;
|
|
hists__set_unres_dso_col_len(hists, HISTC_MEM_DADDR_DSO);
|
|
}
|
|
} else {
|
|
symlen = unresolved_col_width + 4 + 2;
|
|
hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL, symlen);
|
|
hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL, symlen);
|
|
hists__set_unres_dso_col_len(hists, HISTC_MEM_DADDR_DSO);
|
|
}
|
|
|
|
hists__new_col_len(hists, HISTC_CPU, 3);
|
|
hists__new_col_len(hists, HISTC_SOCKET, 6);
|
|
hists__new_col_len(hists, HISTC_MEM_LOCKED, 6);
|
|
hists__new_col_len(hists, HISTC_MEM_TLB, 22);
|
|
hists__new_col_len(hists, HISTC_MEM_SNOOP, 12);
|
|
hists__new_col_len(hists, HISTC_MEM_LVL, 21 + 3);
|
|
hists__new_col_len(hists, HISTC_LOCAL_WEIGHT, 12);
|
|
hists__new_col_len(hists, HISTC_GLOBAL_WEIGHT, 12);
|
|
|
|
if (h->srcline)
|
|
hists__new_col_len(hists, HISTC_SRCLINE, strlen(h->srcline));
|
|
|
|
if (h->srcfile)
|
|
hists__new_col_len(hists, HISTC_SRCFILE, strlen(h->srcfile));
|
|
|
|
if (h->transaction)
|
|
hists__new_col_len(hists, HISTC_TRANSACTION,
|
|
hist_entry__transaction_len());
|
|
}
|
|
|
|
void hists__output_recalc_col_len(struct hists *hists, int max_rows)
|
|
{
|
|
struct rb_node *next = rb_first(&hists->entries);
|
|
struct hist_entry *n;
|
|
int row = 0;
|
|
|
|
hists__reset_col_len(hists);
|
|
|
|
while (next && row++ < max_rows) {
|
|
n = rb_entry(next, struct hist_entry, rb_node);
|
|
if (!n->filtered)
|
|
hists__calc_col_len(hists, n);
|
|
next = rb_next(&n->rb_node);
|
|
}
|
|
}
|
|
|
|
static void he_stat__add_cpumode_period(struct he_stat *he_stat,
|
|
unsigned int cpumode, u64 period)
|
|
{
|
|
switch (cpumode) {
|
|
case PERF_RECORD_MISC_KERNEL:
|
|
he_stat->period_sys += period;
|
|
break;
|
|
case PERF_RECORD_MISC_USER:
|
|
he_stat->period_us += period;
|
|
break;
|
|
case PERF_RECORD_MISC_GUEST_KERNEL:
|
|
he_stat->period_guest_sys += period;
|
|
break;
|
|
case PERF_RECORD_MISC_GUEST_USER:
|
|
he_stat->period_guest_us += period;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void he_stat__add_period(struct he_stat *he_stat, u64 period,
|
|
u64 weight)
|
|
{
|
|
|
|
he_stat->period += period;
|
|
he_stat->weight += weight;
|
|
he_stat->nr_events += 1;
|
|
}
|
|
|
|
static void he_stat__add_stat(struct he_stat *dest, struct he_stat *src)
|
|
{
|
|
dest->period += src->period;
|
|
dest->period_sys += src->period_sys;
|
|
dest->period_us += src->period_us;
|
|
dest->period_guest_sys += src->period_guest_sys;
|
|
dest->period_guest_us += src->period_guest_us;
|
|
dest->nr_events += src->nr_events;
|
|
dest->weight += src->weight;
|
|
}
|
|
|
|
static void he_stat__decay(struct he_stat *he_stat)
|
|
{
|
|
he_stat->period = (he_stat->period * 7) / 8;
|
|
he_stat->nr_events = (he_stat->nr_events * 7) / 8;
|
|
/* XXX need decay for weight too? */
|
|
}
|
|
|
|
static bool hists__decay_entry(struct hists *hists, struct hist_entry *he)
|
|
{
|
|
u64 prev_period = he->stat.period;
|
|
u64 diff;
|
|
|
|
if (prev_period == 0)
|
|
return true;
|
|
|
|
he_stat__decay(&he->stat);
|
|
if (symbol_conf.cumulate_callchain)
|
|
he_stat__decay(he->stat_acc);
|
|
decay_callchain(he->callchain);
|
|
|
|
diff = prev_period - he->stat.period;
|
|
|
|
hists->stats.total_period -= diff;
|
|
if (!he->filtered)
|
|
hists->stats.total_non_filtered_period -= diff;
|
|
|
|
return he->stat.period == 0;
|
|
}
|
|
|
|
static void hists__delete_entry(struct hists *hists, struct hist_entry *he)
|
|
{
|
|
rb_erase(&he->rb_node, &hists->entries);
|
|
|
|
if (sort__need_collapse)
|
|
rb_erase(&he->rb_node_in, &hists->entries_collapsed);
|
|
else
|
|
rb_erase(&he->rb_node_in, hists->entries_in);
|
|
|
|
--hists->nr_entries;
|
|
if (!he->filtered)
|
|
--hists->nr_non_filtered_entries;
|
|
|
|
hist_entry__delete(he);
|
|
}
|
|
|
|
void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel)
|
|
{
|
|
struct rb_node *next = rb_first(&hists->entries);
|
|
struct hist_entry *n;
|
|
|
|
while (next) {
|
|
n = rb_entry(next, struct hist_entry, rb_node);
|
|
next = rb_next(&n->rb_node);
|
|
if (((zap_user && n->level == '.') ||
|
|
(zap_kernel && n->level != '.') ||
|
|
hists__decay_entry(hists, n))) {
|
|
hists__delete_entry(hists, n);
|
|
}
|
|
}
|
|
}
|
|
|
|
void hists__delete_entries(struct hists *hists)
|
|
{
|
|
struct rb_node *next = rb_first(&hists->entries);
|
|
struct hist_entry *n;
|
|
|
|
while (next) {
|
|
n = rb_entry(next, struct hist_entry, rb_node);
|
|
next = rb_next(&n->rb_node);
|
|
|
|
hists__delete_entry(hists, n);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* histogram, sorted on item, collects periods
|
|
*/
|
|
|
|
static struct hist_entry *hist_entry__new(struct hist_entry *template,
|
|
bool sample_self)
|
|
{
|
|
size_t callchain_size = 0;
|
|
struct hist_entry *he;
|
|
|
|
if (symbol_conf.use_callchain)
|
|
callchain_size = sizeof(struct callchain_root);
|
|
|
|
he = zalloc(sizeof(*he) + callchain_size);
|
|
|
|
if (he != NULL) {
|
|
*he = *template;
|
|
|
|
if (symbol_conf.cumulate_callchain) {
|
|
he->stat_acc = malloc(sizeof(he->stat));
|
|
if (he->stat_acc == NULL) {
|
|
free(he);
|
|
return NULL;
|
|
}
|
|
memcpy(he->stat_acc, &he->stat, sizeof(he->stat));
|
|
if (!sample_self)
|
|
memset(&he->stat, 0, sizeof(he->stat));
|
|
}
|
|
|
|
map__get(he->ms.map);
|
|
|
|
if (he->branch_info) {
|
|
/*
|
|
* This branch info is (a part of) allocated from
|
|
* sample__resolve_bstack() and will be freed after
|
|
* adding new entries. So we need to save a copy.
|
|
*/
|
|
he->branch_info = malloc(sizeof(*he->branch_info));
|
|
if (he->branch_info == NULL) {
|
|
map__zput(he->ms.map);
|
|
free(he->stat_acc);
|
|
free(he);
|
|
return NULL;
|
|
}
|
|
|
|
memcpy(he->branch_info, template->branch_info,
|
|
sizeof(*he->branch_info));
|
|
|
|
map__get(he->branch_info->from.map);
|
|
map__get(he->branch_info->to.map);
|
|
}
|
|
|
|
if (he->mem_info) {
|
|
map__get(he->mem_info->iaddr.map);
|
|
map__get(he->mem_info->daddr.map);
|
|
}
|
|
|
|
if (symbol_conf.use_callchain)
|
|
callchain_init(he->callchain);
|
|
|
|
if (he->raw_data) {
|
|
he->raw_data = memdup(he->raw_data, he->raw_size);
|
|
|
|
if (he->raw_data == NULL) {
|
|
map__put(he->ms.map);
|
|
if (he->branch_info) {
|
|
map__put(he->branch_info->from.map);
|
|
map__put(he->branch_info->to.map);
|
|
free(he->branch_info);
|
|
}
|
|
if (he->mem_info) {
|
|
map__put(he->mem_info->iaddr.map);
|
|
map__put(he->mem_info->daddr.map);
|
|
}
|
|
free(he->stat_acc);
|
|
free(he);
|
|
return NULL;
|
|
}
|
|
}
|
|
INIT_LIST_HEAD(&he->pairs.node);
|
|
thread__get(he->thread);
|
|
}
|
|
|
|
return he;
|
|
}
|
|
|
|
static u8 symbol__parent_filter(const struct symbol *parent)
|
|
{
|
|
if (symbol_conf.exclude_other && parent == NULL)
|
|
return 1 << HIST_FILTER__PARENT;
|
|
return 0;
|
|
}
|
|
|
|
static struct hist_entry *hists__findnew_entry(struct hists *hists,
|
|
struct hist_entry *entry,
|
|
struct addr_location *al,
|
|
bool sample_self)
|
|
{
|
|
struct rb_node **p;
|
|
struct rb_node *parent = NULL;
|
|
struct hist_entry *he;
|
|
int64_t cmp;
|
|
u64 period = entry->stat.period;
|
|
u64 weight = entry->stat.weight;
|
|
|
|
p = &hists->entries_in->rb_node;
|
|
|
|
while (*p != NULL) {
|
|
parent = *p;
|
|
he = rb_entry(parent, struct hist_entry, rb_node_in);
|
|
|
|
/*
|
|
* Make sure that it receives arguments in a same order as
|
|
* hist_entry__collapse() so that we can use an appropriate
|
|
* function when searching an entry regardless which sort
|
|
* keys were used.
|
|
*/
|
|
cmp = hist_entry__cmp(he, entry);
|
|
|
|
if (!cmp) {
|
|
if (sample_self) {
|
|
he_stat__add_period(&he->stat, period, weight);
|
|
hists->stats.total_period += period;
|
|
if (!he->filtered)
|
|
hists->stats.total_non_filtered_period += period;
|
|
}
|
|
if (symbol_conf.cumulate_callchain)
|
|
he_stat__add_period(he->stat_acc, period, weight);
|
|
|
|
/*
|
|
* This mem info was allocated from sample__resolve_mem
|
|
* and will not be used anymore.
|
|
*/
|
|
zfree(&entry->mem_info);
|
|
|
|
/* If the map of an existing hist_entry has
|
|
* become out-of-date due to an exec() or
|
|
* similar, update it. Otherwise we will
|
|
* mis-adjust symbol addresses when computing
|
|
* the history counter to increment.
|
|
*/
|
|
if (he->ms.map != entry->ms.map) {
|
|
map__put(he->ms.map);
|
|
he->ms.map = map__get(entry->ms.map);
|
|
}
|
|
goto out;
|
|
}
|
|
|
|
if (cmp < 0)
|
|
p = &(*p)->rb_left;
|
|
else
|
|
p = &(*p)->rb_right;
|
|
}
|
|
|
|
he = hist_entry__new(entry, sample_self);
|
|
if (!he)
|
|
return NULL;
|
|
|
|
if (sample_self)
|
|
hists__inc_stats(hists, he);
|
|
else
|
|
hists->nr_entries++;
|
|
|
|
rb_link_node(&he->rb_node_in, parent, p);
|
|
rb_insert_color(&he->rb_node_in, hists->entries_in);
|
|
out:
|
|
if (sample_self)
|
|
he_stat__add_cpumode_period(&he->stat, al->cpumode, period);
|
|
if (symbol_conf.cumulate_callchain)
|
|
he_stat__add_cpumode_period(he->stat_acc, al->cpumode, period);
|
|
return he;
|
|
}
|
|
|
|
struct hist_entry *__hists__add_entry(struct hists *hists,
|
|
struct addr_location *al,
|
|
struct symbol *sym_parent,
|
|
struct branch_info *bi,
|
|
struct mem_info *mi,
|
|
struct perf_sample *sample,
|
|
bool sample_self)
|
|
{
|
|
struct hist_entry entry = {
|
|
.thread = al->thread,
|
|
.comm = thread__comm(al->thread),
|
|
.ms = {
|
|
.map = al->map,
|
|
.sym = al->sym,
|
|
},
|
|
.socket = al->socket,
|
|
.cpu = al->cpu,
|
|
.cpumode = al->cpumode,
|
|
.ip = al->addr,
|
|
.level = al->level,
|
|
.stat = {
|
|
.nr_events = 1,
|
|
.period = sample->period,
|
|
.weight = sample->weight,
|
|
},
|
|
.parent = sym_parent,
|
|
.filtered = symbol__parent_filter(sym_parent) | al->filtered,
|
|
.hists = hists,
|
|
.branch_info = bi,
|
|
.mem_info = mi,
|
|
.transaction = sample->transaction,
|
|
.raw_data = sample->raw_data,
|
|
.raw_size = sample->raw_size,
|
|
};
|
|
|
|
return hists__findnew_entry(hists, &entry, al, sample_self);
|
|
}
|
|
|
|
static int
|
|
iter_next_nop_entry(struct hist_entry_iter *iter __maybe_unused,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_add_next_nop_entry(struct hist_entry_iter *iter __maybe_unused,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_prepare_mem_entry(struct hist_entry_iter *iter, struct addr_location *al)
|
|
{
|
|
struct perf_sample *sample = iter->sample;
|
|
struct mem_info *mi;
|
|
|
|
mi = sample__resolve_mem(sample, al);
|
|
if (mi == NULL)
|
|
return -ENOMEM;
|
|
|
|
iter->priv = mi;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_add_single_mem_entry(struct hist_entry_iter *iter, struct addr_location *al)
|
|
{
|
|
u64 cost;
|
|
struct mem_info *mi = iter->priv;
|
|
struct hists *hists = evsel__hists(iter->evsel);
|
|
struct perf_sample *sample = iter->sample;
|
|
struct hist_entry *he;
|
|
|
|
if (mi == NULL)
|
|
return -EINVAL;
|
|
|
|
cost = sample->weight;
|
|
if (!cost)
|
|
cost = 1;
|
|
|
|
/*
|
|
* must pass period=weight in order to get the correct
|
|
* sorting from hists__collapse_resort() which is solely
|
|
* based on periods. We want sorting be done on nr_events * weight
|
|
* and this is indirectly achieved by passing period=weight here
|
|
* and the he_stat__add_period() function.
|
|
*/
|
|
sample->period = cost;
|
|
|
|
he = __hists__add_entry(hists, al, iter->parent, NULL, mi,
|
|
sample, true);
|
|
if (!he)
|
|
return -ENOMEM;
|
|
|
|
iter->he = he;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_finish_mem_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
struct perf_evsel *evsel = iter->evsel;
|
|
struct hists *hists = evsel__hists(evsel);
|
|
struct hist_entry *he = iter->he;
|
|
int err = -EINVAL;
|
|
|
|
if (he == NULL)
|
|
goto out;
|
|
|
|
hists__inc_nr_samples(hists, he->filtered);
|
|
|
|
err = hist_entry__append_callchain(he, iter->sample);
|
|
|
|
out:
|
|
/*
|
|
* We don't need to free iter->priv (mem_info) here since the mem info
|
|
* was either already freed in hists__findnew_entry() or passed to a
|
|
* new hist entry by hist_entry__new().
|
|
*/
|
|
iter->priv = NULL;
|
|
|
|
iter->he = NULL;
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
iter_prepare_branch_entry(struct hist_entry_iter *iter, struct addr_location *al)
|
|
{
|
|
struct branch_info *bi;
|
|
struct perf_sample *sample = iter->sample;
|
|
|
|
bi = sample__resolve_bstack(sample, al);
|
|
if (!bi)
|
|
return -ENOMEM;
|
|
|
|
iter->curr = 0;
|
|
iter->total = sample->branch_stack->nr;
|
|
|
|
iter->priv = bi;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_add_single_branch_entry(struct hist_entry_iter *iter __maybe_unused,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
/* to avoid calling callback function */
|
|
iter->he = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *al)
|
|
{
|
|
struct branch_info *bi = iter->priv;
|
|
int i = iter->curr;
|
|
|
|
if (bi == NULL)
|
|
return 0;
|
|
|
|
if (iter->curr >= iter->total)
|
|
return 0;
|
|
|
|
al->map = bi[i].to.map;
|
|
al->sym = bi[i].to.sym;
|
|
al->addr = bi[i].to.addr;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
iter_add_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *al)
|
|
{
|
|
struct branch_info *bi;
|
|
struct perf_evsel *evsel = iter->evsel;
|
|
struct hists *hists = evsel__hists(evsel);
|
|
struct perf_sample *sample = iter->sample;
|
|
struct hist_entry *he = NULL;
|
|
int i = iter->curr;
|
|
int err = 0;
|
|
|
|
bi = iter->priv;
|
|
|
|
if (iter->hide_unresolved && !(bi[i].from.sym && bi[i].to.sym))
|
|
goto out;
|
|
|
|
/*
|
|
* The report shows the percentage of total branches captured
|
|
* and not events sampled. Thus we use a pseudo period of 1.
|
|
*/
|
|
sample->period = 1;
|
|
sample->weight = bi->flags.cycles ? bi->flags.cycles : 1;
|
|
|
|
he = __hists__add_entry(hists, al, iter->parent, &bi[i], NULL,
|
|
sample, true);
|
|
if (he == NULL)
|
|
return -ENOMEM;
|
|
|
|
hists__inc_nr_samples(hists, he->filtered);
|
|
|
|
out:
|
|
iter->he = he;
|
|
iter->curr++;
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
iter_finish_branch_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
zfree(&iter->priv);
|
|
iter->he = NULL;
|
|
|
|
return iter->curr >= iter->total ? 0 : -1;
|
|
}
|
|
|
|
static int
|
|
iter_prepare_normal_entry(struct hist_entry_iter *iter __maybe_unused,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_add_single_normal_entry(struct hist_entry_iter *iter, struct addr_location *al)
|
|
{
|
|
struct perf_evsel *evsel = iter->evsel;
|
|
struct perf_sample *sample = iter->sample;
|
|
struct hist_entry *he;
|
|
|
|
he = __hists__add_entry(evsel__hists(evsel), al, iter->parent, NULL, NULL,
|
|
sample, true);
|
|
if (he == NULL)
|
|
return -ENOMEM;
|
|
|
|
iter->he = he;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_finish_normal_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
struct hist_entry *he = iter->he;
|
|
struct perf_evsel *evsel = iter->evsel;
|
|
struct perf_sample *sample = iter->sample;
|
|
|
|
if (he == NULL)
|
|
return 0;
|
|
|
|
iter->he = NULL;
|
|
|
|
hists__inc_nr_samples(evsel__hists(evsel), he->filtered);
|
|
|
|
return hist_entry__append_callchain(he, sample);
|
|
}
|
|
|
|
static int
|
|
iter_prepare_cumulative_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
struct hist_entry **he_cache;
|
|
|
|
callchain_cursor_commit(&callchain_cursor);
|
|
|
|
/*
|
|
* This is for detecting cycles or recursions so that they're
|
|
* cumulated only one time to prevent entries more than 100%
|
|
* overhead.
|
|
*/
|
|
he_cache = malloc(sizeof(*he_cache) * (iter->max_stack + 1));
|
|
if (he_cache == NULL)
|
|
return -ENOMEM;
|
|
|
|
iter->priv = he_cache;
|
|
iter->curr = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_add_single_cumulative_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al)
|
|
{
|
|
struct perf_evsel *evsel = iter->evsel;
|
|
struct hists *hists = evsel__hists(evsel);
|
|
struct perf_sample *sample = iter->sample;
|
|
struct hist_entry **he_cache = iter->priv;
|
|
struct hist_entry *he;
|
|
int err = 0;
|
|
|
|
he = __hists__add_entry(hists, al, iter->parent, NULL, NULL,
|
|
sample, true);
|
|
if (he == NULL)
|
|
return -ENOMEM;
|
|
|
|
iter->he = he;
|
|
he_cache[iter->curr++] = he;
|
|
|
|
hist_entry__append_callchain(he, sample);
|
|
|
|
/*
|
|
* We need to re-initialize the cursor since callchain_append()
|
|
* advanced the cursor to the end.
|
|
*/
|
|
callchain_cursor_commit(&callchain_cursor);
|
|
|
|
hists__inc_nr_samples(hists, he->filtered);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
iter_next_cumulative_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al)
|
|
{
|
|
struct callchain_cursor_node *node;
|
|
|
|
node = callchain_cursor_current(&callchain_cursor);
|
|
if (node == NULL)
|
|
return 0;
|
|
|
|
return fill_callchain_info(al, node, iter->hide_unresolved);
|
|
}
|
|
|
|
static int
|
|
iter_add_next_cumulative_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al)
|
|
{
|
|
struct perf_evsel *evsel = iter->evsel;
|
|
struct perf_sample *sample = iter->sample;
|
|
struct hist_entry **he_cache = iter->priv;
|
|
struct hist_entry *he;
|
|
struct hist_entry he_tmp = {
|
|
.hists = evsel__hists(evsel),
|
|
.cpu = al->cpu,
|
|
.thread = al->thread,
|
|
.comm = thread__comm(al->thread),
|
|
.ip = al->addr,
|
|
.ms = {
|
|
.map = al->map,
|
|
.sym = al->sym,
|
|
},
|
|
.parent = iter->parent,
|
|
.raw_data = sample->raw_data,
|
|
.raw_size = sample->raw_size,
|
|
};
|
|
int i;
|
|
struct callchain_cursor cursor;
|
|
|
|
callchain_cursor_snapshot(&cursor, &callchain_cursor);
|
|
|
|
callchain_cursor_advance(&callchain_cursor);
|
|
|
|
/*
|
|
* Check if there's duplicate entries in the callchain.
|
|
* It's possible that it has cycles or recursive calls.
|
|
*/
|
|
for (i = 0; i < iter->curr; i++) {
|
|
if (hist_entry__cmp(he_cache[i], &he_tmp) == 0) {
|
|
/* to avoid calling callback function */
|
|
iter->he = NULL;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
he = __hists__add_entry(evsel__hists(evsel), al, iter->parent, NULL, NULL,
|
|
sample, false);
|
|
if (he == NULL)
|
|
return -ENOMEM;
|
|
|
|
iter->he = he;
|
|
he_cache[iter->curr++] = he;
|
|
|
|
if (symbol_conf.use_callchain)
|
|
callchain_append(he->callchain, &cursor, sample->period);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
iter_finish_cumulative_entry(struct hist_entry_iter *iter,
|
|
struct addr_location *al __maybe_unused)
|
|
{
|
|
zfree(&iter->priv);
|
|
iter->he = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const struct hist_iter_ops hist_iter_mem = {
|
|
.prepare_entry = iter_prepare_mem_entry,
|
|
.add_single_entry = iter_add_single_mem_entry,
|
|
.next_entry = iter_next_nop_entry,
|
|
.add_next_entry = iter_add_next_nop_entry,
|
|
.finish_entry = iter_finish_mem_entry,
|
|
};
|
|
|
|
const struct hist_iter_ops hist_iter_branch = {
|
|
.prepare_entry = iter_prepare_branch_entry,
|
|
.add_single_entry = iter_add_single_branch_entry,
|
|
.next_entry = iter_next_branch_entry,
|
|
.add_next_entry = iter_add_next_branch_entry,
|
|
.finish_entry = iter_finish_branch_entry,
|
|
};
|
|
|
|
const struct hist_iter_ops hist_iter_normal = {
|
|
.prepare_entry = iter_prepare_normal_entry,
|
|
.add_single_entry = iter_add_single_normal_entry,
|
|
.next_entry = iter_next_nop_entry,
|
|
.add_next_entry = iter_add_next_nop_entry,
|
|
.finish_entry = iter_finish_normal_entry,
|
|
};
|
|
|
|
const struct hist_iter_ops hist_iter_cumulative = {
|
|
.prepare_entry = iter_prepare_cumulative_entry,
|
|
.add_single_entry = iter_add_single_cumulative_entry,
|
|
.next_entry = iter_next_cumulative_entry,
|
|
.add_next_entry = iter_add_next_cumulative_entry,
|
|
.finish_entry = iter_finish_cumulative_entry,
|
|
};
|
|
|
|
int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al,
|
|
int max_stack_depth, void *arg)
|
|
{
|
|
int err, err2;
|
|
|
|
err = sample__resolve_callchain(iter->sample, &iter->parent,
|
|
iter->evsel, al, max_stack_depth);
|
|
if (err)
|
|
return err;
|
|
|
|
iter->max_stack = max_stack_depth;
|
|
|
|
err = iter->ops->prepare_entry(iter, al);
|
|
if (err)
|
|
goto out;
|
|
|
|
err = iter->ops->add_single_entry(iter, al);
|
|
if (err)
|
|
goto out;
|
|
|
|
if (iter->he && iter->add_entry_cb) {
|
|
err = iter->add_entry_cb(iter, al, true, arg);
|
|
if (err)
|
|
goto out;
|
|
}
|
|
|
|
while (iter->ops->next_entry(iter, al)) {
|
|
err = iter->ops->add_next_entry(iter, al);
|
|
if (err)
|
|
break;
|
|
|
|
if (iter->he && iter->add_entry_cb) {
|
|
err = iter->add_entry_cb(iter, al, false, arg);
|
|
if (err)
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
out:
|
|
err2 = iter->ops->finish_entry(iter, al);
|
|
if (!err)
|
|
err = err2;
|
|
|
|
return err;
|
|
}
|
|
|
|
int64_t
|
|
hist_entry__cmp(struct hist_entry *left, struct hist_entry *right)
|
|
{
|
|
struct perf_hpp_fmt *fmt;
|
|
int64_t cmp = 0;
|
|
|
|
perf_hpp__for_each_sort_list(fmt) {
|
|
cmp = fmt->cmp(fmt, left, right);
|
|
if (cmp)
|
|
break;
|
|
}
|
|
|
|
return cmp;
|
|
}
|
|
|
|
int64_t
|
|
hist_entry__collapse(struct hist_entry *left, struct hist_entry *right)
|
|
{
|
|
struct perf_hpp_fmt *fmt;
|
|
int64_t cmp = 0;
|
|
|
|
perf_hpp__for_each_sort_list(fmt) {
|
|
cmp = fmt->collapse(fmt, left, right);
|
|
if (cmp)
|
|
break;
|
|
}
|
|
|
|
return cmp;
|
|
}
|
|
|
|
void hist_entry__delete(struct hist_entry *he)
|
|
{
|
|
thread__zput(he->thread);
|
|
map__zput(he->ms.map);
|
|
|
|
if (he->branch_info) {
|
|
map__zput(he->branch_info->from.map);
|
|
map__zput(he->branch_info->to.map);
|
|
zfree(&he->branch_info);
|
|
}
|
|
|
|
if (he->mem_info) {
|
|
map__zput(he->mem_info->iaddr.map);
|
|
map__zput(he->mem_info->daddr.map);
|
|
zfree(&he->mem_info);
|
|
}
|
|
|
|
zfree(&he->stat_acc);
|
|
free_srcline(he->srcline);
|
|
if (he->srcfile && he->srcfile[0])
|
|
free(he->srcfile);
|
|
free_callchain(he->callchain);
|
|
free(he->trace_output);
|
|
free(he->raw_data);
|
|
free(he);
|
|
}
|
|
|
|
/*
|
|
* collapse the histogram
|
|
*/
|
|
|
|
bool hists__collapse_insert_entry(struct hists *hists __maybe_unused,
|
|
struct rb_root *root, struct hist_entry *he)
|
|
{
|
|
struct rb_node **p = &root->rb_node;
|
|
struct rb_node *parent = NULL;
|
|
struct hist_entry *iter;
|
|
int64_t cmp;
|
|
|
|
while (*p != NULL) {
|
|
parent = *p;
|
|
iter = rb_entry(parent, struct hist_entry, rb_node_in);
|
|
|
|
cmp = hist_entry__collapse(iter, he);
|
|
|
|
if (!cmp) {
|
|
he_stat__add_stat(&iter->stat, &he->stat);
|
|
if (symbol_conf.cumulate_callchain)
|
|
he_stat__add_stat(iter->stat_acc, he->stat_acc);
|
|
|
|
if (symbol_conf.use_callchain) {
|
|
callchain_cursor_reset(&callchain_cursor);
|
|
callchain_merge(&callchain_cursor,
|
|
iter->callchain,
|
|
he->callchain);
|
|
}
|
|
hist_entry__delete(he);
|
|
return false;
|
|
}
|
|
|
|
if (cmp < 0)
|
|
p = &(*p)->rb_left;
|
|
else
|
|
p = &(*p)->rb_right;
|
|
}
|
|
hists->nr_entries++;
|
|
|
|
rb_link_node(&he->rb_node_in, parent, p);
|
|
rb_insert_color(&he->rb_node_in, root);
|
|
return true;
|
|
}
|
|
|
|
struct rb_root *hists__get_rotate_entries_in(struct hists *hists)
|
|
{
|
|
struct rb_root *root;
|
|
|
|
pthread_mutex_lock(&hists->lock);
|
|
|
|
root = hists->entries_in;
|
|
if (++hists->entries_in > &hists->entries_in_array[1])
|
|
hists->entries_in = &hists->entries_in_array[0];
|
|
|
|
pthread_mutex_unlock(&hists->lock);
|
|
|
|
return root;
|
|
}
|
|
|
|
static void hists__apply_filters(struct hists *hists, struct hist_entry *he)
|
|
{
|
|
hists__filter_entry_by_dso(hists, he);
|
|
hists__filter_entry_by_thread(hists, he);
|
|
hists__filter_entry_by_symbol(hists, he);
|
|
hists__filter_entry_by_socket(hists, he);
|
|
}
|
|
|
|
void hists__collapse_resort(struct hists *hists, struct ui_progress *prog)
|
|
{
|
|
struct rb_root *root;
|
|
struct rb_node *next;
|
|
struct hist_entry *n;
|
|
|
|
if (!sort__need_collapse)
|
|
return;
|
|
|
|
hists->nr_entries = 0;
|
|
|
|
root = hists__get_rotate_entries_in(hists);
|
|
|
|
next = rb_first(root);
|
|
|
|
while (next) {
|
|
if (session_done())
|
|
break;
|
|
n = rb_entry(next, struct hist_entry, rb_node_in);
|
|
next = rb_next(&n->rb_node_in);
|
|
|
|
rb_erase(&n->rb_node_in, root);
|
|
if (hists__collapse_insert_entry(hists, &hists->entries_collapsed, n)) {
|
|
/*
|
|
* If it wasn't combined with one of the entries already
|
|
* collapsed, we need to apply the filters that may have
|
|
* been set by, say, the hist_browser.
|
|
*/
|
|
hists__apply_filters(hists, n);
|
|
}
|
|
if (prog)
|
|
ui_progress__update(prog, 1);
|
|
}
|
|
}
|
|
|
|
static int hist_entry__sort(struct hist_entry *a, struct hist_entry *b)
|
|
{
|
|
struct perf_hpp_fmt *fmt;
|
|
int64_t cmp = 0;
|
|
|
|
perf_hpp__for_each_sort_list(fmt) {
|
|
if (perf_hpp__should_skip(fmt, a->hists))
|
|
continue;
|
|
|
|
cmp = fmt->sort(fmt, a, b);
|
|
if (cmp)
|
|
break;
|
|
}
|
|
|
|
return cmp;
|
|
}
|
|
|
|
static void hists__reset_filter_stats(struct hists *hists)
|
|
{
|
|
hists->nr_non_filtered_entries = 0;
|
|
hists->stats.total_non_filtered_period = 0;
|
|
}
|
|
|
|
void hists__reset_stats(struct hists *hists)
|
|
{
|
|
hists->nr_entries = 0;
|
|
hists->stats.total_period = 0;
|
|
|
|
hists__reset_filter_stats(hists);
|
|
}
|
|
|
|
static void hists__inc_filter_stats(struct hists *hists, struct hist_entry *h)
|
|
{
|
|
hists->nr_non_filtered_entries++;
|
|
hists->stats.total_non_filtered_period += h->stat.period;
|
|
}
|
|
|
|
void hists__inc_stats(struct hists *hists, struct hist_entry *h)
|
|
{
|
|
if (!h->filtered)
|
|
hists__inc_filter_stats(hists, h);
|
|
|
|
hists->nr_entries++;
|
|
hists->stats.total_period += h->stat.period;
|
|
}
|
|
|
|
static void __hists__insert_output_entry(struct rb_root *entries,
|
|
struct hist_entry *he,
|
|
u64 min_callchain_hits,
|
|
bool use_callchain)
|
|
{
|
|
struct rb_node **p = &entries->rb_node;
|
|
struct rb_node *parent = NULL;
|
|
struct hist_entry *iter;
|
|
|
|
if (use_callchain) {
|
|
if (callchain_param.mode == CHAIN_GRAPH_REL) {
|
|
u64 total = he->stat.period;
|
|
|
|
if (symbol_conf.cumulate_callchain)
|
|
total = he->stat_acc->period;
|
|
|
|
min_callchain_hits = total * (callchain_param.min_percent / 100);
|
|
}
|
|
callchain_param.sort(&he->sorted_chain, he->callchain,
|
|
min_callchain_hits, &callchain_param);
|
|
}
|
|
|
|
while (*p != NULL) {
|
|
parent = *p;
|
|
iter = rb_entry(parent, struct hist_entry, rb_node);
|
|
|
|
if (hist_entry__sort(he, iter) > 0)
|
|
p = &(*p)->rb_left;
|
|
else
|
|
p = &(*p)->rb_right;
|
|
}
|
|
|
|
rb_link_node(&he->rb_node, parent, p);
|
|
rb_insert_color(&he->rb_node, entries);
|
|
}
|
|
|
|
static void output_resort(struct hists *hists, struct ui_progress *prog,
|
|
bool use_callchain)
|
|
{
|
|
struct rb_root *root;
|
|
struct rb_node *next;
|
|
struct hist_entry *n;
|
|
u64 min_callchain_hits;
|
|
|
|
min_callchain_hits = hists__total_period(hists) * (callchain_param.min_percent / 100);
|
|
|
|
if (sort__need_collapse)
|
|
root = &hists->entries_collapsed;
|
|
else
|
|
root = hists->entries_in;
|
|
|
|
next = rb_first(root);
|
|
hists->entries = RB_ROOT;
|
|
|
|
hists__reset_stats(hists);
|
|
hists__reset_col_len(hists);
|
|
|
|
while (next) {
|
|
n = rb_entry(next, struct hist_entry, rb_node_in);
|
|
next = rb_next(&n->rb_node_in);
|
|
|
|
__hists__insert_output_entry(&hists->entries, n, min_callchain_hits, use_callchain);
|
|
hists__inc_stats(hists, n);
|
|
|
|
if (!n->filtered)
|
|
hists__calc_col_len(hists, n);
|
|
|
|
if (prog)
|
|
ui_progress__update(prog, 1);
|
|
}
|
|
}
|
|
|
|
void perf_evsel__output_resort(struct perf_evsel *evsel, struct ui_progress *prog)
|
|
{
|
|
bool use_callchain;
|
|
|
|
if (evsel && symbol_conf.use_callchain && !symbol_conf.show_ref_callgraph)
|
|
use_callchain = evsel->attr.sample_type & PERF_SAMPLE_CALLCHAIN;
|
|
else
|
|
use_callchain = symbol_conf.use_callchain;
|
|
|
|
output_resort(evsel__hists(evsel), prog, use_callchain);
|
|
}
|
|
|
|
void hists__output_resort(struct hists *hists, struct ui_progress *prog)
|
|
{
|
|
output_resort(hists, prog, symbol_conf.use_callchain);
|
|
}
|
|
|
|
static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *h,
|
|
enum hist_filter filter)
|
|
{
|
|
h->filtered &= ~(1 << filter);
|
|
if (h->filtered)
|
|
return;
|
|
|
|
/* force fold unfiltered entry for simplicity */
|
|
h->unfolded = false;
|
|
h->row_offset = 0;
|
|
h->nr_rows = 0;
|
|
|
|
hists->stats.nr_non_filtered_samples += h->stat.nr_events;
|
|
|
|
hists__inc_filter_stats(hists, h);
|
|
hists__calc_col_len(hists, h);
|
|
}
|
|
|
|
|
|
static bool hists__filter_entry_by_dso(struct hists *hists,
|
|
struct hist_entry *he)
|
|
{
|
|
if (hists->dso_filter != NULL &&
|
|
(he->ms.map == NULL || he->ms.map->dso != hists->dso_filter)) {
|
|
he->filtered |= (1 << HIST_FILTER__DSO);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool hists__filter_entry_by_thread(struct hists *hists,
|
|
struct hist_entry *he)
|
|
{
|
|
if (hists->thread_filter != NULL &&
|
|
he->thread != hists->thread_filter) {
|
|
he->filtered |= (1 << HIST_FILTER__THREAD);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool hists__filter_entry_by_symbol(struct hists *hists,
|
|
struct hist_entry *he)
|
|
{
|
|
if (hists->symbol_filter_str != NULL &&
|
|
(!he->ms.sym || strstr(he->ms.sym->name,
|
|
hists->symbol_filter_str) == NULL)) {
|
|
he->filtered |= (1 << HIST_FILTER__SYMBOL);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool hists__filter_entry_by_socket(struct hists *hists,
|
|
struct hist_entry *he)
|
|
{
|
|
if ((hists->socket_filter > -1) &&
|
|
(he->socket != hists->socket_filter)) {
|
|
he->filtered |= (1 << HIST_FILTER__SOCKET);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
typedef bool (*filter_fn_t)(struct hists *hists, struct hist_entry *he);
|
|
|
|
static void hists__filter_by_type(struct hists *hists, int type, filter_fn_t filter)
|
|
{
|
|
struct rb_node *nd;
|
|
|
|
hists->stats.nr_non_filtered_samples = 0;
|
|
|
|
hists__reset_filter_stats(hists);
|
|
hists__reset_col_len(hists);
|
|
|
|
for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
|
|
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
|
|
|
|
if (filter(hists, h))
|
|
continue;
|
|
|
|
hists__remove_entry_filter(hists, h, type);
|
|
}
|
|
}
|
|
|
|
void hists__filter_by_thread(struct hists *hists)
|
|
{
|
|
hists__filter_by_type(hists, HIST_FILTER__THREAD,
|
|
hists__filter_entry_by_thread);
|
|
}
|
|
|
|
void hists__filter_by_dso(struct hists *hists)
|
|
{
|
|
hists__filter_by_type(hists, HIST_FILTER__DSO,
|
|
hists__filter_entry_by_dso);
|
|
}
|
|
|
|
void hists__filter_by_symbol(struct hists *hists)
|
|
{
|
|
hists__filter_by_type(hists, HIST_FILTER__SYMBOL,
|
|
hists__filter_entry_by_symbol);
|
|
}
|
|
|
|
void hists__filter_by_socket(struct hists *hists)
|
|
{
|
|
hists__filter_by_type(hists, HIST_FILTER__SOCKET,
|
|
hists__filter_entry_by_socket);
|
|
}
|
|
|
|
void events_stats__inc(struct events_stats *stats, u32 type)
|
|
{
|
|
++stats->nr_events[0];
|
|
++stats->nr_events[type];
|
|
}
|
|
|
|
void hists__inc_nr_events(struct hists *hists, u32 type)
|
|
{
|
|
events_stats__inc(&hists->stats, type);
|
|
}
|
|
|
|
void hists__inc_nr_samples(struct hists *hists, bool filtered)
|
|
{
|
|
events_stats__inc(&hists->stats, PERF_RECORD_SAMPLE);
|
|
if (!filtered)
|
|
hists->stats.nr_non_filtered_samples++;
|
|
}
|
|
|
|
static struct hist_entry *hists__add_dummy_entry(struct hists *hists,
|
|
struct hist_entry *pair)
|
|
{
|
|
struct rb_root *root;
|
|
struct rb_node **p;
|
|
struct rb_node *parent = NULL;
|
|
struct hist_entry *he;
|
|
int64_t cmp;
|
|
|
|
if (sort__need_collapse)
|
|
root = &hists->entries_collapsed;
|
|
else
|
|
root = hists->entries_in;
|
|
|
|
p = &root->rb_node;
|
|
|
|
while (*p != NULL) {
|
|
parent = *p;
|
|
he = rb_entry(parent, struct hist_entry, rb_node_in);
|
|
|
|
cmp = hist_entry__collapse(he, pair);
|
|
|
|
if (!cmp)
|
|
goto out;
|
|
|
|
if (cmp < 0)
|
|
p = &(*p)->rb_left;
|
|
else
|
|
p = &(*p)->rb_right;
|
|
}
|
|
|
|
he = hist_entry__new(pair, true);
|
|
if (he) {
|
|
memset(&he->stat, 0, sizeof(he->stat));
|
|
he->hists = hists;
|
|
rb_link_node(&he->rb_node_in, parent, p);
|
|
rb_insert_color(&he->rb_node_in, root);
|
|
hists__inc_stats(hists, he);
|
|
he->dummy = true;
|
|
}
|
|
out:
|
|
return he;
|
|
}
|
|
|
|
static struct hist_entry *hists__find_entry(struct hists *hists,
|
|
struct hist_entry *he)
|
|
{
|
|
struct rb_node *n;
|
|
|
|
if (sort__need_collapse)
|
|
n = hists->entries_collapsed.rb_node;
|
|
else
|
|
n = hists->entries_in->rb_node;
|
|
|
|
while (n) {
|
|
struct hist_entry *iter = rb_entry(n, struct hist_entry, rb_node_in);
|
|
int64_t cmp = hist_entry__collapse(iter, he);
|
|
|
|
if (cmp < 0)
|
|
n = n->rb_left;
|
|
else if (cmp > 0)
|
|
n = n->rb_right;
|
|
else
|
|
return iter;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Look for pairs to link to the leader buckets (hist_entries):
|
|
*/
|
|
void hists__match(struct hists *leader, struct hists *other)
|
|
{
|
|
struct rb_root *root;
|
|
struct rb_node *nd;
|
|
struct hist_entry *pos, *pair;
|
|
|
|
if (sort__need_collapse)
|
|
root = &leader->entries_collapsed;
|
|
else
|
|
root = leader->entries_in;
|
|
|
|
for (nd = rb_first(root); nd; nd = rb_next(nd)) {
|
|
pos = rb_entry(nd, struct hist_entry, rb_node_in);
|
|
pair = hists__find_entry(other, pos);
|
|
|
|
if (pair)
|
|
hist_entry__add_pair(pair, pos);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Look for entries in the other hists that are not present in the leader, if
|
|
* we find them, just add a dummy entry on the leader hists, with period=0,
|
|
* nr_events=0, to serve as the list header.
|
|
*/
|
|
int hists__link(struct hists *leader, struct hists *other)
|
|
{
|
|
struct rb_root *root;
|
|
struct rb_node *nd;
|
|
struct hist_entry *pos, *pair;
|
|
|
|
if (sort__need_collapse)
|
|
root = &other->entries_collapsed;
|
|
else
|
|
root = other->entries_in;
|
|
|
|
for (nd = rb_first(root); nd; nd = rb_next(nd)) {
|
|
pos = rb_entry(nd, struct hist_entry, rb_node_in);
|
|
|
|
if (!hist_entry__has_pairs(pos)) {
|
|
pair = hists__add_dummy_entry(leader, pos);
|
|
if (pair == NULL)
|
|
return -1;
|
|
hist_entry__add_pair(pos, pair);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
|
|
struct perf_sample *sample, bool nonany_branch_mode)
|
|
{
|
|
struct branch_info *bi;
|
|
|
|
/* If we have branch cycles always annotate them. */
|
|
if (bs && bs->nr && bs->entries[0].flags.cycles) {
|
|
int i;
|
|
|
|
bi = sample__resolve_bstack(sample, al);
|
|
if (bi) {
|
|
struct addr_map_symbol *prev = NULL;
|
|
|
|
/*
|
|
* Ignore errors, still want to process the
|
|
* other entries.
|
|
*
|
|
* For non standard branch modes always
|
|
* force no IPC (prev == NULL)
|
|
*
|
|
* Note that perf stores branches reversed from
|
|
* program order!
|
|
*/
|
|
for (i = bs->nr - 1; i >= 0; i--) {
|
|
addr_map_symbol__account_cycles(&bi[i].from,
|
|
nonany_branch_mode ? NULL : prev,
|
|
bi[i].flags.cycles);
|
|
prev = &bi[i].to;
|
|
}
|
|
free(bi);
|
|
}
|
|
}
|
|
}
|
|
|
|
size_t perf_evlist__fprintf_nr_events(struct perf_evlist *evlist, FILE *fp)
|
|
{
|
|
struct perf_evsel *pos;
|
|
size_t ret = 0;
|
|
|
|
evlist__for_each(evlist, pos) {
|
|
ret += fprintf(fp, "%s stats:\n", perf_evsel__name(pos));
|
|
ret += events_stats__fprintf(&evsel__hists(pos)->stats, fp);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
u64 hists__total_period(struct hists *hists)
|
|
{
|
|
return symbol_conf.filter_relative ? hists->stats.total_non_filtered_period :
|
|
hists->stats.total_period;
|
|
}
|
|
|
|
int parse_filter_percentage(const struct option *opt __maybe_unused,
|
|
const char *arg, int unset __maybe_unused)
|
|
{
|
|
if (!strcmp(arg, "relative"))
|
|
symbol_conf.filter_relative = true;
|
|
else if (!strcmp(arg, "absolute"))
|
|
symbol_conf.filter_relative = false;
|
|
else
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int perf_hist_config(const char *var, const char *value)
|
|
{
|
|
if (!strcmp(var, "hist.percentage"))
|
|
return parse_filter_percentage(NULL, value, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int __hists__init(struct hists *hists)
|
|
{
|
|
memset(hists, 0, sizeof(*hists));
|
|
hists->entries_in_array[0] = hists->entries_in_array[1] = RB_ROOT;
|
|
hists->entries_in = &hists->entries_in_array[0];
|
|
hists->entries_collapsed = RB_ROOT;
|
|
hists->entries = RB_ROOT;
|
|
pthread_mutex_init(&hists->lock, NULL);
|
|
hists->socket_filter = -1;
|
|
return 0;
|
|
}
|
|
|
|
static void hists__delete_remaining_entries(struct rb_root *root)
|
|
{
|
|
struct rb_node *node;
|
|
struct hist_entry *he;
|
|
|
|
while (!RB_EMPTY_ROOT(root)) {
|
|
node = rb_first(root);
|
|
rb_erase(node, root);
|
|
|
|
he = rb_entry(node, struct hist_entry, rb_node_in);
|
|
hist_entry__delete(he);
|
|
}
|
|
}
|
|
|
|
static void hists__delete_all_entries(struct hists *hists)
|
|
{
|
|
hists__delete_entries(hists);
|
|
hists__delete_remaining_entries(&hists->entries_in_array[0]);
|
|
hists__delete_remaining_entries(&hists->entries_in_array[1]);
|
|
hists__delete_remaining_entries(&hists->entries_collapsed);
|
|
}
|
|
|
|
static void hists_evsel__exit(struct perf_evsel *evsel)
|
|
{
|
|
struct hists *hists = evsel__hists(evsel);
|
|
|
|
hists__delete_all_entries(hists);
|
|
}
|
|
|
|
static int hists_evsel__init(struct perf_evsel *evsel)
|
|
{
|
|
struct hists *hists = evsel__hists(evsel);
|
|
|
|
__hists__init(hists);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* XXX We probably need a hists_evsel__exit() to free the hist_entries
|
|
* stored in the rbtree...
|
|
*/
|
|
|
|
int hists__init(void)
|
|
{
|
|
int err = perf_evsel__object_config(sizeof(struct hists_evsel),
|
|
hists_evsel__init,
|
|
hists_evsel__exit);
|
|
if (err)
|
|
fputs("FATAL ERROR: Couldn't setup hists class\n", stderr);
|
|
|
|
return err;
|
|
}
|