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perf tools: Move hist entries printing routines from perf report 

Will be used in other tools such as 'perf diff'.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1260973631-28035-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Arnaldo Carvalho de Melo 2009-12-16 12:27:09 -02:00 committed by Ingo Molnar
parent d599db3fc5
commit 4ecf84d086
3 changed files with 385 additions and 397 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

397
tools/perf/builtin-report.c
View File

@ -43,316 +43,6 @@ static char *pretty_printing_style = default_pretty_printing_style;
static char callchain_default_opt[] = "fractal,0.5";
static size_t
callchain__fprintf_left_margin(FILE *fp, int left_margin)
{
int i;
int ret;
ret = fprintf(fp, " ");
for (i = 0; i < left_margin; i++)
ret += fprintf(fp, " ");
return ret;
}
static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask,
int left_margin)
{
int i;
size_t ret = 0;
ret += callchain__fprintf_left_margin(fp, left_margin);
for (i = 0; i < depth; i++)
if (depth_mask & (1 << i))
ret += fprintf(fp, "| ");
else
ret += fprintf(fp, " ");
ret += fprintf(fp, "\n");
return ret;
}
static size_t
ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain, int depth,
int depth_mask, int count, u64 total_samples,
int hits, int left_margin)
{
int i;
size_t ret = 0;
ret += callchain__fprintf_left_margin(fp, left_margin);
for (i = 0; i < depth; i++) {
if (depth_mask & (1 << i))
ret += fprintf(fp, "|");
else
ret += fprintf(fp, " ");
if (!count && i == depth - 1) {
double percent;
percent = hits * 100.0 / total_samples;
ret += percent_color_fprintf(fp, "--%2.2f%%-- ", percent);
} else
ret += fprintf(fp, "%s", " ");
}
if (chain->sym)
ret += fprintf(fp, "%s\n", chain->sym->name);
else
ret += fprintf(fp, "%p\n", (void *)(long)chain->ip);
return ret;
}
static struct symbol *rem_sq_bracket;
static struct callchain_list rem_hits;
static void init_rem_hits(void)
{
rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6);
if (!rem_sq_bracket) {
fprintf(stderr, "Not enough memory to display remaining hits\n");
return;
}
strcpy(rem_sq_bracket->name, "[...]");
rem_hits.sym = rem_sq_bracket;
}
static size_t
__callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
u64 total_samples, int depth, int depth_mask,
int left_margin)
{
struct rb_node *node, *next;
struct callchain_node *child;
struct callchain_list *chain;
int new_depth_mask = depth_mask;
u64 new_total;
u64 remaining;
size_t ret = 0;
int i;
if (callchain_param.mode == CHAIN_GRAPH_REL)
new_total = self->children_hit;
else
new_total = total_samples;
remaining = new_total;
node = rb_first(&self->rb_root);
while (node) {
u64 cumul;
child = rb_entry(node, struct callchain_node, rb_node);
cumul = cumul_hits(child);
remaining -= cumul;
/*
* The depth mask manages the output of pipes that show
* the depth. We don't want to keep the pipes of the current
* level for the last child of this depth.
* Except if we have remaining filtered hits. They will
* supersede the last child
*/
next = rb_next(node);
if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining))
new_depth_mask &= ~(1 << (depth - 1));
/*
* But we keep the older depth mask for the line seperator
* to keep the level link until we reach the last child
*/
ret += ipchain__fprintf_graph_line(fp, depth, depth_mask,
left_margin);
i = 0;
list_for_each_entry(chain, &child->val, list) {
if (chain->ip >= PERF_CONTEXT_MAX)
continue;
ret += ipchain__fprintf_graph(fp, chain, depth,
new_depth_mask, i++,
new_total,
cumul,
left_margin);
}
ret += __callchain__fprintf_graph(fp, child, new_total,
depth + 1,
new_depth_mask | (1 << depth),
left_margin);
node = next;
}
if (callchain_param.mode == CHAIN_GRAPH_REL &&
remaining && remaining != new_total) {
if (!rem_sq_bracket)
return ret;
new_depth_mask &= ~(1 << (depth - 1));
ret += ipchain__fprintf_graph(fp, &rem_hits, depth,
new_depth_mask, 0, new_total,
remaining, left_margin);
}
return ret;
}
static size_t
callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
u64 total_samples, int left_margin)
{
struct callchain_list *chain;
bool printed = false;
int i = 0;
int ret = 0;
list_for_each_entry(chain, &self->val, list) {
if (chain->ip >= PERF_CONTEXT_MAX)
continue;
if (!i++ && sort__first_dimension == SORT_SYM)
continue;
if (!printed) {
ret += callchain__fprintf_left_margin(fp, left_margin);
ret += fprintf(fp, "|\n");
ret += callchain__fprintf_left_margin(fp, left_margin);
ret += fprintf(fp, "---");
left_margin += 3;
printed = true;
} else
ret += callchain__fprintf_left_margin(fp, left_margin);
if (chain->sym)
ret += fprintf(fp, " %s\n", chain->sym->name);
else
ret += fprintf(fp, " %p\n", (void *)(long)chain->ip);
}
ret += __callchain__fprintf_graph(fp, self, total_samples, 1, 1, left_margin);
return ret;
}
static size_t
callchain__fprintf_flat(FILE *fp, struct callchain_node *self,
u64 total_samples)
{
struct callchain_list *chain;
size_t ret = 0;
if (!self)
return 0;
ret += callchain__fprintf_flat(fp, self->parent, total_samples);
list_for_each_entry(chain, &self->val, list) {
if (chain->ip >= PERF_CONTEXT_MAX)
continue;
if (chain->sym)
ret += fprintf(fp, " %s\n", chain->sym->name);
else
ret += fprintf(fp, " %p\n",
(void *)(long)chain->ip);
}
return ret;
}
static size_t
hist_entry_callchain__fprintf(FILE *fp, struct hist_entry *self,
u64 total_samples, int left_margin)
{
struct rb_node *rb_node;
struct callchain_node *chain;
size_t ret = 0;
rb_node = rb_first(&self->sorted_chain);
while (rb_node) {
double percent;
chain = rb_entry(rb_node, struct callchain_node, rb_node);
percent = chain->hit * 100.0 / total_samples;
switch (callchain_param.mode) {
case CHAIN_FLAT:
ret += percent_color_fprintf(fp, " %6.2f%%\n",
percent);
ret += callchain__fprintf_flat(fp, chain, total_samples);
break;
case CHAIN_GRAPH_ABS: /* Falldown */
case CHAIN_GRAPH_REL:
ret += callchain__fprintf_graph(fp, chain, total_samples,
left_margin);
case CHAIN_NONE:
default:
break;
}
ret += fprintf(fp, "\n");
rb_node = rb_next(rb_node);
}
return ret;
}
static size_t hist_entry__fprintf(FILE *fp, struct hist_entry *self,
struct perf_session *session)
{
struct sort_entry *se;
size_t ret;
if (symbol_conf.exclude_other && !self->parent)
return 0;
if (session->events_stats.total)
ret = percent_color_fprintf(fp,
symbol_conf.field_sep ? "%.2f" : " %6.2f%%",
(self->count * 100.0) / session->events_stats.total);
else
ret = fprintf(fp, symbol_conf.field_sep ? "%lld" : "%12lld ", self->count);
if (symbol_conf.show_nr_samples) {
if (symbol_conf.field_sep)
fprintf(fp, "%c%lld", *symbol_conf.field_sep, self->count);
else
fprintf(fp, "%11lld", self->count);
}
list_for_each_entry(se, &hist_entry__sort_list, list) {
if (se->elide)
continue;
fprintf(fp, "%s", symbol_conf.field_sep ?: " ");
ret += se->print(fp, self, se->width ? *se->width : 0);
}
ret += fprintf(fp, "\n");
if (symbol_conf.use_callchain) {
int left_margin = 0;
if (sort__first_dimension == SORT_COMM) {
se = list_first_entry(&hist_entry__sort_list, typeof(*se),
list);
left_margin = se->width ? *se->width : 0;
left_margin -= thread__comm_len(self->thread);
}
hist_entry_callchain__fprintf(fp, self, session->events_stats.total,
left_margin);
}
return ret;
}
/*
* collect histogram counts
*/
static int perf_session__add_hist_entry(struct perf_session *self,
struct addr_location *al,
struct ip_callchain *chain, u64 count)
@ -381,93 +71,6 @@ static int perf_session__add_hist_entry(struct perf_session *self,
return 0;
}
static size_t perf_session__fprintf_hists(struct perf_session *self, FILE *fp)
{
struct hist_entry *pos;
struct sort_entry *se;
struct rb_node *nd;
size_t ret = 0;
unsigned int width;
char *col_width = symbol_conf.col_width_list_str;
init_rem_hits();
fprintf(fp, "# Samples: %ld\n", self->events_stats.total);
fprintf(fp, "#\n");
fprintf(fp, "# Overhead");
if (symbol_conf.show_nr_samples) {
if (symbol_conf.field_sep)
fprintf(fp, "%cSamples", *symbol_conf.field_sep);
else
fputs(" Samples ", fp);
}
list_for_each_entry(se, &hist_entry__sort_list, list) {
if (se->elide)
continue;
if (symbol_conf.field_sep) {
fprintf(fp, "%c%s", *symbol_conf.field_sep, se->header);
continue;
}
width = strlen(se->header);
if (se->width) {
if (symbol_conf.col_width_list_str) {
if (col_width) {
*se->width = atoi(col_width);
col_width = strchr(col_width, ',');
if (col_width)
++col_width;
}
}
width = *se->width = max(*se->width, width);
}
fprintf(fp, " %*s", width, se->header);
}
fprintf(fp, "\n");
if (symbol_conf.field_sep)
goto print_entries;
fprintf(fp, "# ........");
if (symbol_conf.show_nr_samples)
fprintf(fp, " ..........");
list_for_each_entry(se, &hist_entry__sort_list, list) {
unsigned int i;
if (se->elide)
continue;
fprintf(fp, " ");
if (se->width)
width = *se->width;
else
width = strlen(se->header);
for (i = 0; i < width; i++)
fprintf(fp, ".");
}
fprintf(fp, "\n");
fprintf(fp, "#\n");
print_entries:
for (nd = rb_first(&self->hists); nd; nd = rb_next(nd)) {
pos = rb_entry(nd, struct hist_entry, rb_node);
ret += hist_entry__fprintf(fp, pos, self);
}
if (sort_order == default_sort_order &&
parent_pattern == default_parent_pattern) {
fprintf(fp, "#\n");
fprintf(fp, "# (For a higher level overview, try: perf report --sort comm,dso)\n");
fprintf(fp, "#\n");
}
fprintf(fp, "\n");
free(rem_sq_bracket);
return ret;
}
static int validate_chain(struct ip_callchain *chain, event_t *event)
{
unsigned int chain_size;

384
tools/perf/util/hist.c
View File

@ -206,3 +206,387 @@ void perf_session__output_resort(struct perf_session *self, u64 total_samples)
self->hists = tmp;
}
static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin)
{
int i;
int ret = fprintf(fp, " ");
for (i = 0; i < left_margin; i++)
ret += fprintf(fp, " ");
return ret;
}
static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask,
int left_margin)
{
int i;
size_t ret = callchain__fprintf_left_margin(fp, left_margin);
for (i = 0; i < depth; i++)
if (depth_mask & (1 << i))
ret += fprintf(fp, "| ");
else
ret += fprintf(fp, " ");
ret += fprintf(fp, "\n");
return ret;
}
static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain,
int depth, int depth_mask, int count,
u64 total_samples, int hits,
int left_margin)
{
int i;
size_t ret = 0;
ret += callchain__fprintf_left_margin(fp, left_margin);
for (i = 0; i < depth; i++) {
if (depth_mask & (1 << i))
ret += fprintf(fp, "|");
else
ret += fprintf(fp, " ");
if (!count && i == depth - 1) {
double percent;
percent = hits * 100.0 / total_samples;
ret += percent_color_fprintf(fp, "--%2.2f%%-- ", percent);
} else
ret += fprintf(fp, "%s", " ");
}
if (chain->sym)
ret += fprintf(fp, "%s\n", chain->sym->name);
else
ret += fprintf(fp, "%p\n", (void *)(long)chain->ip);
return ret;
}
static struct symbol *rem_sq_bracket;
static struct callchain_list rem_hits;
static void init_rem_hits(void)
{
rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6);
if (!rem_sq_bracket) {
fprintf(stderr, "Not enough memory to display remaining hits\n");
return;
}
strcpy(rem_sq_bracket->name, "[...]");
rem_hits.sym = rem_sq_bracket;
}
static size_t __callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
u64 total_samples, int depth,
int depth_mask, int left_margin)
{
struct rb_node *node, *next;
struct callchain_node *child;
struct callchain_list *chain;
int new_depth_mask = depth_mask;
u64 new_total;
u64 remaining;
size_t ret = 0;
int i;
if (callchain_param.mode == CHAIN_GRAPH_REL)
new_total = self->children_hit;
else
new_total = total_samples;
remaining = new_total;
node = rb_first(&self->rb_root);
while (node) {
u64 cumul;
child = rb_entry(node, struct callchain_node, rb_node);
cumul = cumul_hits(child);
remaining -= cumul;
/*
* The depth mask manages the output of pipes that show
* the depth. We don't want to keep the pipes of the current
* level for the last child of this depth.
* Except if we have remaining filtered hits. They will
* supersede the last child
*/
next = rb_next(node);
if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining))
new_depth_mask &= ~(1 << (depth - 1));
/*
* But we keep the older depth mask for the line seperator
* to keep the level link until we reach the last child
*/
ret += ipchain__fprintf_graph_line(fp, depth, depth_mask,
left_margin);
i = 0;
list_for_each_entry(chain, &child->val, list) {
if (chain->ip >= PERF_CONTEXT_MAX)
continue;
ret += ipchain__fprintf_graph(fp, chain, depth,
new_depth_mask, i++,
new_total,
cumul,
left_margin);
}
ret += __callchain__fprintf_graph(fp, child, new_total,
depth + 1,
new_depth_mask | (1 << depth),
left_margin);
node = next;
}
if (callchain_param.mode == CHAIN_GRAPH_REL &&
remaining && remaining != new_total) {
if (!rem_sq_bracket)
return ret;
new_depth_mask &= ~(1 << (depth - 1));
ret += ipchain__fprintf_graph(fp, &rem_hits, depth,
new_depth_mask, 0, new_total,
remaining, left_margin);
}
return ret;
}
static size_t callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
u64 total_samples, int left_margin)
{
struct callchain_list *chain;
bool printed = false;
int i = 0;
int ret = 0;
list_for_each_entry(chain, &self->val, list) {
if (chain->ip >= PERF_CONTEXT_MAX)
continue;
if (!i++ && sort__first_dimension == SORT_SYM)
continue;
if (!printed) {
ret += callchain__fprintf_left_margin(fp, left_margin);
ret += fprintf(fp, "|\n");
ret += callchain__fprintf_left_margin(fp, left_margin);
ret += fprintf(fp, "---");
left_margin += 3;
printed = true;
} else
ret += callchain__fprintf_left_margin(fp, left_margin);
if (chain->sym)
ret += fprintf(fp, " %s\n", chain->sym->name);
else
ret += fprintf(fp, " %p\n", (void *)(long)chain->ip);
}
ret += __callchain__fprintf_graph(fp, self, total_samples, 1, 1, left_margin);
return ret;
}
static size_t callchain__fprintf_flat(FILE *fp, struct callchain_node *self,
u64 total_samples)
{
struct callchain_list *chain;
size_t ret = 0;
if (!self)
return 0;
ret += callchain__fprintf_flat(fp, self->parent, total_samples);
list_for_each_entry(chain, &self->val, list) {
if (chain->ip >= PERF_CONTEXT_MAX)
continue;
if (chain->sym)
ret += fprintf(fp, " %s\n", chain->sym->name);
else
ret += fprintf(fp, " %p\n",
(void *)(long)chain->ip);
}
return ret;
}
static size_t hist_entry_callchain__fprintf(FILE *fp, struct hist_entry *self,
u64 total_samples, int left_margin)
{
struct rb_node *rb_node;
struct callchain_node *chain;
size_t ret = 0;
rb_node = rb_first(&self->sorted_chain);
while (rb_node) {
double percent;
chain = rb_entry(rb_node, struct callchain_node, rb_node);
percent = chain->hit * 100.0 / total_samples;
switch (callchain_param.mode) {
case CHAIN_FLAT:
ret += percent_color_fprintf(fp, " %6.2f%%\n",
percent);
ret += callchain__fprintf_flat(fp, chain, total_samples);
break;
case CHAIN_GRAPH_ABS: /* Falldown */
case CHAIN_GRAPH_REL:
ret += callchain__fprintf_graph(fp, chain, total_samples,
left_margin);
case CHAIN_NONE:
default:
break;
}
ret += fprintf(fp, "\n");
rb_node = rb_next(rb_node);
}
return ret;
}
static size_t hist_entry__fprintf(FILE *fp, struct hist_entry *self,
struct perf_session *session)
{
struct sort_entry *se;
size_t ret;
if (symbol_conf.exclude_other && !self->parent)
return 0;
if (session->events_stats.total)
ret = percent_color_fprintf(fp,
symbol_conf.field_sep ? "%.2f" : " %6.2f%%",
(self->count * 100.0) / session->events_stats.total);
else
ret = fprintf(fp, symbol_conf.field_sep ? "%lld" : "%12lld ", self->count);
if (symbol_conf.show_nr_samples) {
if (symbol_conf.field_sep)
fprintf(fp, "%c%lld", *symbol_conf.field_sep, self->count);
else
fprintf(fp, "%11lld", self->count);
}
list_for_each_entry(se, &hist_entry__sort_list, list) {
if (se->elide)
continue;
fprintf(fp, "%s", symbol_conf.field_sep ?: " ");
ret += se->print(fp, self, se->width ? *se->width : 0);
}
ret += fprintf(fp, "\n");
if (symbol_conf.use_callchain) {
int left_margin = 0;
if (sort__first_dimension == SORT_COMM) {
se = list_first_entry(&hist_entry__sort_list, typeof(*se),
list);
left_margin = se->width ? *se->width : 0;
left_margin -= thread__comm_len(self->thread);
}
hist_entry_callchain__fprintf(fp, self, session->events_stats.total,
left_margin);
}
return ret;
}
size_t perf_session__fprintf_hists(struct perf_session *self, FILE *fp)
{
struct hist_entry *pos;
struct sort_entry *se;
struct rb_node *nd;
size_t ret = 0;
unsigned int width;
char *col_width = symbol_conf.col_width_list_str;
init_rem_hits();
fprintf(fp, "# Samples: %ld\n", self->events_stats.total);
fprintf(fp, "#\n");
fprintf(fp, "# Overhead");
if (symbol_conf.show_nr_samples) {
if (symbol_conf.field_sep)
fprintf(fp, "%cSamples", *symbol_conf.field_sep);
else
fputs(" Samples ", fp);
}
list_for_each_entry(se, &hist_entry__sort_list, list) {
if (se->elide)
continue;
if (symbol_conf.field_sep) {
fprintf(fp, "%c%s", *symbol_conf.field_sep, se->header);
continue;
}
width = strlen(se->header);
if (se->width) {
if (symbol_conf.col_width_list_str) {
if (col_width) {
*se->width = atoi(col_width);
col_width = strchr(col_width, ',');
if (col_width)
++col_width;
}
}
width = *se->width = max(*se->width, width);
}
fprintf(fp, " %*s", width, se->header);
}
fprintf(fp, "\n");
if (symbol_conf.field_sep)
goto print_entries;
fprintf(fp, "# ........");
if (symbol_conf.show_nr_samples)
fprintf(fp, " ..........");
list_for_each_entry(se, &hist_entry__sort_list, list) {
unsigned int i;
if (se->elide)
continue;
fprintf(fp, " ");
if (se->width)
width = *se->width;
else
width = strlen(se->header);
for (i = 0; i < width; i++)
fprintf(fp, ".");
}
fprintf(fp, "\n");
fprintf(fp, "#\n");
print_entries:
for (nd = rb_first(&self->hists); nd; nd = rb_next(nd)) {
pos = rb_entry(nd, struct hist_entry, rb_node);
ret += hist_entry__fprintf(fp, pos, self);
}
if (sort_order == default_sort_order &&
parent_pattern == default_parent_pattern) {
fprintf(fp, "#\n");
fprintf(fp, "# (For a higher level overview, try: perf report --sort comm,dso)\n");
fprintf(fp, "#\n");
}
fprintf(fp, "\n");
free(rem_sq_bracket);
return ret;
}

1
tools/perf/util/hist.h
View File

@ -21,5 +21,6 @@ void hist_entry__free(struct hist_entry *);
void perf_session__output_resort(struct perf_session *self, u64 total_samples);
void perf_session__collapse_resort(struct perf_session *self);
size_t perf_session__fprintf_hists(struct perf_session *self, FILE *fp);
#endif /* __PERF_HIST_H */