mirror of
https://github.com/adulau/aha.git
synced 2024-12-27 19:26:25 +00:00
perf_counter: tools: report: Rework histogram code
In preparation for configurable sorting, rework the histgram code a bit. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: John Kacur <jkacur@redhat.com> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <20090527182100.796410098@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra
Ingo Molnar
parent
450aaa2b2a
commit
e7fb08b1d0
1 changed files with 144 additions and 152 deletions
|
|
@ -597,71 +597,9 @@ struct thread;
|
|||
|
||||
static const char *thread__name(struct thread *self, char *bf, size_t size);
|
||||
|
||||
struct symhist {
|
||||
struct rb_node rb_node;
|
||||
struct dso *dso;
|
||||
struct symbol *sym;
|
||||
struct thread *thread;
|
||||
uint64_t ip;
|
||||
uint32_t count;
|
||||
char level;
|
||||
};
|
||||
|
||||
static struct symhist *symhist__new(struct symbol *sym, uint64_t ip,
|
||||
struct thread *thread, struct dso *dso,
|
||||
char level)
|
||||
{
|
||||
struct symhist *self = malloc(sizeof(*self));
|
||||
|
||||
if (self != NULL) {
|
||||
self->sym = sym;
|
||||
self->thread = thread;
|
||||
self->ip = ip;
|
||||
self->dso = dso;
|
||||
self->level = level;
|
||||
self->count = 1;
|
||||
}
|
||||
|
||||
return self;
|
||||
}
|
||||
|
||||
static void symhist__inc(struct symhist *self)
|
||||
{
|
||||
++self->count;
|
||||
}
|
||||
|
||||
static size_t
|
||||
symhist__fprintf(struct symhist *self, uint64_t total_samples, FILE *fp)
|
||||
{
|
||||
char bf[32];
|
||||
size_t ret;
|
||||
|
||||
if (total_samples)
|
||||
ret = fprintf(fp, "%5.2f%% ", (self->count * 100.0) / total_samples);
|
||||
else
|
||||
ret = fprintf(fp, "%12d ", self->count);
|
||||
|
||||
ret += fprintf(fp, "%14s [%c] ",
|
||||
thread__name(self->thread, bf, sizeof(bf)),
|
||||
self->level);
|
||||
|
||||
if (verbose)
|
||||
ret += fprintf(fp, "%#018llx ", (unsigned long long)self->ip);
|
||||
|
||||
if (self->level != '.')
|
||||
ret += fprintf(fp, "%s\n",
|
||||
self->sym ? self->sym->name : "<unknown>");
|
||||
else
|
||||
ret += fprintf(fp, "%s: %s\n",
|
||||
self->dso ? self->dso->name : "<unknown>",
|
||||
self->sym ? self->sym->name : "<unknown>");
|
||||
return ret;
|
||||
}
|
||||
|
||||
struct thread {
|
||||
struct rb_node rb_node;
|
||||
struct list_head maps;
|
||||
struct rb_root symhists;
|
||||
pid_t pid;
|
||||
char *comm;
|
||||
};
|
||||
|
|
@ -683,67 +621,17 @@ static struct thread *thread__new(pid_t pid)
|
|||
self->pid = pid;
|
||||
self->comm = NULL;
|
||||
INIT_LIST_HEAD(&self->maps);
|
||||
self->symhists = RB_ROOT;
|
||||
}
|
||||
|
||||
return self;
|
||||
}
|
||||
|
||||
static int thread__symbol_incnew(struct thread *self, struct symbol *sym,
|
||||
uint64_t ip, struct dso *dso, char level)
|
||||
{
|
||||
struct rb_node **p = &self->symhists.rb_node;
|
||||
struct rb_node *parent = NULL;
|
||||
struct symhist *sh;
|
||||
|
||||
while (*p != NULL) {
|
||||
uint64_t start;
|
||||
|
||||
parent = *p;
|
||||
sh = rb_entry(parent, struct symhist, rb_node);
|
||||
|
||||
if (sh->sym == sym || ip == sh->ip) {
|
||||
symhist__inc(sh);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Handle unresolved symbols too */
|
||||
start = !sh->sym ? sh->ip : sh->sym->start;
|
||||
|
||||
if (ip < start)
|
||||
p = &(*p)->rb_left;
|
||||
else
|
||||
p = &(*p)->rb_right;
|
||||
}
|
||||
|
||||
sh = symhist__new(sym, ip, self, dso, level);
|
||||
if (sh == NULL)
|
||||
return -ENOMEM;
|
||||
rb_link_node(&sh->rb_node, parent, p);
|
||||
rb_insert_color(&sh->rb_node, &self->symhists);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int thread__set_comm(struct thread *self, const char *comm)
|
||||
{
|
||||
self->comm = strdup(comm);
|
||||
return self->comm ? 0 : -ENOMEM;
|
||||
}
|
||||
|
||||
static size_t thread__fprintf(struct thread *self, FILE *fp)
|
||||
{
|
||||
int ret = fprintf(fp, "thread: %d %s\n", self->pid, self->comm);
|
||||
struct rb_node *nd;
|
||||
|
||||
for (nd = rb_first(&self->symhists); nd; nd = rb_next(nd)) {
|
||||
struct symhist *pos = rb_entry(nd, struct symhist, rb_node);
|
||||
|
||||
ret += symhist__fprintf(pos, 0, fp);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct rb_root threads;
|
||||
|
||||
static struct thread *threads__findnew(pid_t pid)
|
||||
|
|
@ -792,70 +680,172 @@ static struct map *thread__find_map(struct thread *self, uint64_t ip)
|
|||
return NULL;
|
||||
}
|
||||
|
||||
static void threads__fprintf(FILE *fp)
|
||||
/*
|
||||
* histogram, sorted on item, collects counts
|
||||
*/
|
||||
|
||||
static struct rb_root hist;
|
||||
|
||||
struct hist_entry {
|
||||
struct rb_node rb_node;
|
||||
|
||||
struct thread *thread;
|
||||
struct map *map;
|
||||
struct dso *dso;
|
||||
struct symbol *sym;
|
||||
uint64_t ip;
|
||||
char level;
|
||||
|
||||
uint32_t count;
|
||||
};
|
||||
|
||||
static int64_t
|
||||
hist_entry__cmp(struct hist_entry *left, struct hist_entry *right)
|
||||
{
|
||||
struct rb_node *nd;
|
||||
for (nd = rb_first(&threads); nd; nd = rb_next(nd)) {
|
||||
struct thread *pos = rb_entry(nd, struct thread, rb_node);
|
||||
thread__fprintf(pos, fp);
|
||||
}
|
||||
uint64_t ip_l, ip_r;
|
||||
int cmp = right->thread->pid - left->thread->pid;
|
||||
|
||||
if (cmp)
|
||||
return cmp;
|
||||
|
||||
if (left->sym == right->sym)
|
||||
return 0;
|
||||
|
||||
ip_l = left->sym ? left->sym->start : left->ip;
|
||||
ip_r = right->sym ? right->sym->start : right->ip;
|
||||
|
||||
return (int64_t)(ip_r - ip_l);
|
||||
}
|
||||
|
||||
static struct rb_root global_symhists;
|
||||
|
||||
static void threads__insert_symhist(struct symhist *sh)
|
||||
static int
|
||||
hist_entry__add(struct thread *thread, struct map *map, struct dso *dso,
|
||||
struct symbol *sym, uint64_t ip, char level)
|
||||
{
|
||||
struct rb_node **p = &global_symhists.rb_node;
|
||||
struct rb_node **p = &hist.rb_node;
|
||||
struct rb_node *parent = NULL;
|
||||
struct symhist *iter;
|
||||
struct hist_entry *he;
|
||||
struct hist_entry entry = {
|
||||
.thread = thread,
|
||||
.map = map,
|
||||
.dso = dso,
|
||||
.sym = sym,
|
||||
.ip = ip,
|
||||
.level = level,
|
||||
.count = 1,
|
||||
};
|
||||
int cmp;
|
||||
|
||||
while (*p != NULL) {
|
||||
parent = *p;
|
||||
iter = rb_entry(parent, struct symhist, rb_node);
|
||||
he = rb_entry(parent, struct hist_entry, rb_node);
|
||||
|
||||
/* Reverse order */
|
||||
if (sh->count > iter->count)
|
||||
cmp = hist_entry__cmp(&entry, he);
|
||||
|
||||
if (!cmp) {
|
||||
he->count++;
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (cmp < 0)
|
||||
p = &(*p)->rb_left;
|
||||
else
|
||||
p = &(*p)->rb_right;
|
||||
}
|
||||
|
||||
rb_link_node(&sh->rb_node, parent, p);
|
||||
rb_insert_color(&sh->rb_node, &global_symhists);
|
||||
he = malloc(sizeof(*he));
|
||||
if (!he)
|
||||
return -ENOMEM;
|
||||
*he = entry;
|
||||
rb_link_node(&he->rb_node, parent, p);
|
||||
rb_insert_color(&he->rb_node, &hist);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void threads__sort_symhists(void)
|
||||
static size_t
|
||||
hist_entry__fprintf(FILE *fp, struct hist_entry *self, uint64_t total_samples)
|
||||
{
|
||||
struct rb_node *nd;
|
||||
char bf[32];
|
||||
size_t ret;
|
||||
|
||||
for (nd = rb_first(&threads); nd; nd = rb_next(nd)) {
|
||||
struct thread *thread = rb_entry(nd, struct thread, rb_node);
|
||||
struct rb_node *next = rb_first(&thread->symhists);
|
||||
if (total_samples) {
|
||||
ret = fprintf(fp, "%5.2f%% ",
|
||||
(self->count * 100.0) / total_samples);
|
||||
} else
|
||||
ret = fprintf(fp, "%12d ", self->count);
|
||||
|
||||
while (next) {
|
||||
struct symhist *n = rb_entry(next, struct symhist,
|
||||
rb_node);
|
||||
next = rb_next(&n->rb_node);
|
||||
rb_erase(&n->rb_node, &thread->symhists);
|
||||
threads__insert_symhist(n);
|
||||
}
|
||||
ret += fprintf(fp, "%14s [%c] ",
|
||||
thread__name(self->thread, bf, sizeof(bf)),
|
||||
self->level);
|
||||
|
||||
if (verbose)
|
||||
ret += fprintf(fp, "%#018llx ", (unsigned long long)self->ip);
|
||||
|
||||
if (self->level != '.')
|
||||
ret += fprintf(fp, "%s\n",
|
||||
self->sym ? self->sym->name : "<unknown>");
|
||||
else
|
||||
ret += fprintf(fp, "%s: %s\n",
|
||||
self->dso ? self->dso->name : "<unknown>",
|
||||
self->sym ? self->sym->name : "<unknown>");
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* reverse the map, sort on count.
|
||||
*/
|
||||
|
||||
static struct rb_root output_hists;
|
||||
|
||||
static void output__insert_entry(struct hist_entry *he)
|
||||
{
|
||||
struct rb_node **p = &output_hists.rb_node;
|
||||
struct rb_node *parent = NULL;
|
||||
struct hist_entry *iter;
|
||||
|
||||
while (*p != NULL) {
|
||||
parent = *p;
|
||||
iter = rb_entry(parent, struct hist_entry, rb_node);
|
||||
|
||||
if (he->count > iter->count)
|
||||
p = &(*p)->rb_left;
|
||||
else
|
||||
p = &(*p)->rb_right;
|
||||
}
|
||||
|
||||
rb_link_node(&he->rb_node, parent, p);
|
||||
rb_insert_color(&he->rb_node, &output_hists);
|
||||
}
|
||||
|
||||
static void output__resort(void)
|
||||
{
|
||||
struct rb_node *next = rb_first(&hist);
|
||||
struct hist_entry *n;
|
||||
|
||||
while (next) {
|
||||
n = rb_entry(next, struct hist_entry, rb_node);
|
||||
next = rb_next(&n->rb_node);
|
||||
|
||||
rb_erase(&n->rb_node, &hist);
|
||||
output__insert_entry(n);
|
||||
}
|
||||
}
|
||||
|
||||
static size_t threads__symhists_fprintf(uint64_t total_samples, FILE *fp)
|
||||
static size_t output__fprintf(FILE *fp, uint64_t total_samples)
|
||||
{
|
||||
struct hist_entry *pos;
|
||||
struct rb_node *nd;
|
||||
size_t ret = 0;
|
||||
|
||||
for (nd = rb_first(&global_symhists); nd; nd = rb_next(nd)) {
|
||||
struct symhist *pos = rb_entry(nd, struct symhist, rb_node);
|
||||
ret += symhist__fprintf(pos, total_samples, fp);
|
||||
for (nd = rb_first(&output_hists); nd; nd = rb_next(nd)) {
|
||||
pos = rb_entry(nd, struct hist_entry, rb_node);
|
||||
ret += hist_entry__fprintf(fp, pos, total_samples);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
static int __cmd_report(void)
|
||||
{
|
||||
unsigned long offset = 0;
|
||||
|
|
@ -926,6 +916,7 @@ more:
|
|||
struct dso *dso = NULL;
|
||||
struct thread *thread = threads__findnew(event->ip.pid);
|
||||
uint64_t ip = event->ip.ip;
|
||||
struct map *map = NULL;
|
||||
|
||||
if (dump_trace) {
|
||||
fprintf(stderr, "%p [%p]: PERF_EVENT (IP, %d): %d: %p\n",
|
||||
|
|
@ -945,9 +936,10 @@ more:
|
|||
if (event->header.misc & PERF_EVENT_MISC_KERNEL) {
|
||||
show = SHOW_KERNEL;
|
||||
level = 'k';
|
||||
|
||||
dso = kernel_dso;
|
||||
|
||||
} else if (event->header.misc & PERF_EVENT_MISC_USER) {
|
||||
struct map *map;
|
||||
|
||||
show = SHOW_USER;
|
||||
level = '.';
|
||||
|
|
@ -957,6 +949,7 @@ more:
|
|||
dso = map->dso;
|
||||
ip -= map->start + map->pgoff;
|
||||
}
|
||||
|
||||
} else {
|
||||
show = SHOW_HV;
|
||||
level = 'H';
|
||||
|
|
@ -965,8 +958,9 @@ more:
|
|||
if (show & show_mask) {
|
||||
struct symbol *sym = dso__find_symbol(dso, ip);
|
||||
|
||||
if (thread__symbol_incnew(thread, sym, ip, dso, level)) {
|
||||
fprintf(stderr, "problem incrementing symbol count, bailing out\n");
|
||||
if (hist_entry__add(thread, map, dso, sym, ip, level)) {
|
||||
fprintf(stderr,
|
||||
"problem incrementing symbol count, bailing out\n");
|
||||
goto done;
|
||||
}
|
||||
}
|
||||
|
|
@ -1050,13 +1044,11 @@ done:
|
|||
return 0;
|
||||
}
|
||||
|
||||
if (verbose >= 2) {
|
||||
if (verbose >= 2)
|
||||
dsos__fprintf(stdout);
|
||||
threads__fprintf(stdout);
|
||||
}
|
||||
|
||||
threads__sort_symhists();
|
||||
threads__symhists_fprintf(total, stdout);
|
||||
output__resort();
|
||||
output__fprintf(stdout, total);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue