![Namhyung Kim](/assets/img/avatar_default.png)
The struct he_stat is for separating out statistics data of a hist entry. It is required for later changes. It's just a mechanical change and should have no functional differences. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Arun Sharma <asharma@fb.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1349354994-17853-8-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
486 lines
11 KiB
C
486 lines
11 KiB
C
#include <stdio.h>
|
|
|
|
#include "../../util/util.h"
|
|
#include "../../util/hist.h"
|
|
#include "../../util/sort.h"
|
|
|
|
|
|
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 period,
|
|
u64 total_samples, u64 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 (!period && 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->ms.sym)
|
|
ret += fprintf(fp, "%s\n", chain->ms.sym->name);
|
|
else
|
|
ret += fprintf(fp, "0x%0" PRIx64 "\n", 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.ms.sym = rem_sq_bracket;
|
|
}
|
|
|
|
static size_t __callchain__fprintf_graph(FILE *fp, struct rb_root *root,
|
|
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 remaining;
|
|
size_t ret = 0;
|
|
int i;
|
|
uint entries_printed = 0;
|
|
|
|
remaining = total_samples;
|
|
|
|
node = rb_first(root);
|
|
while (node) {
|
|
u64 new_total;
|
|
u64 cumul;
|
|
|
|
child = rb_entry(node, struct callchain_node, rb_node);
|
|
cumul = callchain_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 separator
|
|
* 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) {
|
|
ret += ipchain__fprintf_graph(fp, chain, depth,
|
|
new_depth_mask, i++,
|
|
total_samples,
|
|
cumul,
|
|
left_margin);
|
|
}
|
|
|
|
if (callchain_param.mode == CHAIN_GRAPH_REL)
|
|
new_total = child->children_hit;
|
|
else
|
|
new_total = total_samples;
|
|
|
|
ret += __callchain__fprintf_graph(fp, &child->rb_root, new_total,
|
|
depth + 1,
|
|
new_depth_mask | (1 << depth),
|
|
left_margin);
|
|
node = next;
|
|
if (++entries_printed == callchain_param.print_limit)
|
|
break;
|
|
}
|
|
|
|
if (callchain_param.mode == CHAIN_GRAPH_REL &&
|
|
remaining && remaining != total_samples) {
|
|
|
|
if (!rem_sq_bracket)
|
|
return ret;
|
|
|
|
new_depth_mask &= ~(1 << (depth - 1));
|
|
ret += ipchain__fprintf_graph(fp, &rem_hits, depth,
|
|
new_depth_mask, 0, total_samples,
|
|
remaining, left_margin);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
|
|
u64 total_samples, int left_margin)
|
|
{
|
|
struct callchain_node *cnode;
|
|
struct callchain_list *chain;
|
|
u32 entries_printed = 0;
|
|
bool printed = false;
|
|
struct rb_node *node;
|
|
int i = 0;
|
|
int ret = 0;
|
|
|
|
/*
|
|
* If have one single callchain root, don't bother printing
|
|
* its percentage (100 % in fractal mode and the same percentage
|
|
* than the hist in graph mode). This also avoid one level of column.
|
|
*/
|
|
node = rb_first(root);
|
|
if (node && !rb_next(node)) {
|
|
cnode = rb_entry(node, struct callchain_node, rb_node);
|
|
list_for_each_entry(chain, &cnode->val, list) {
|
|
/*
|
|
* If we sort by symbol, the first entry is the same than
|
|
* the symbol. No need to print it otherwise it appears as
|
|
* displayed twice.
|
|
*/
|
|
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->ms.sym)
|
|
ret += fprintf(fp, " %s\n", chain->ms.sym->name);
|
|
else
|
|
ret += fprintf(fp, " %p\n", (void *)(long)chain->ip);
|
|
|
|
if (++entries_printed == callchain_param.print_limit)
|
|
break;
|
|
}
|
|
root = &cnode->rb_root;
|
|
}
|
|
|
|
ret += __callchain__fprintf_graph(fp, root, total_samples,
|
|
1, 1, left_margin);
|
|
ret += fprintf(fp, "\n");
|
|
|
|
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->ms.sym)
|
|
ret += fprintf(fp, " %s\n", chain->ms.sym->name);
|
|
else
|
|
ret += fprintf(fp, " %p\n",
|
|
(void *)(long)chain->ip);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *self,
|
|
u64 total_samples)
|
|
{
|
|
size_t ret = 0;
|
|
u32 entries_printed = 0;
|
|
struct rb_node *rb_node;
|
|
struct callchain_node *chain;
|
|
|
|
rb_node = rb_first(self);
|
|
while (rb_node) {
|
|
double percent;
|
|
|
|
chain = rb_entry(rb_node, struct callchain_node, rb_node);
|
|
percent = chain->hit * 100.0 / total_samples;
|
|
|
|
ret = percent_color_fprintf(fp, " %6.2f%%\n", percent);
|
|
ret += __callchain__fprintf_flat(fp, chain, total_samples);
|
|
ret += fprintf(fp, "\n");
|
|
if (++entries_printed == callchain_param.print_limit)
|
|
break;
|
|
|
|
rb_node = rb_next(rb_node);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
|
|
u64 total_samples, int left_margin,
|
|
FILE *fp)
|
|
{
|
|
switch (callchain_param.mode) {
|
|
case CHAIN_GRAPH_REL:
|
|
return callchain__fprintf_graph(fp, &he->sorted_chain, he->stat.period,
|
|
left_margin);
|
|
break;
|
|
case CHAIN_GRAPH_ABS:
|
|
return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples,
|
|
left_margin);
|
|
break;
|
|
case CHAIN_FLAT:
|
|
return callchain__fprintf_flat(fp, &he->sorted_chain, total_samples);
|
|
break;
|
|
case CHAIN_NONE:
|
|
break;
|
|
default:
|
|
pr_err("Bad callchain mode\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static size_t hist_entry__callchain_fprintf(struct hist_entry *he,
|
|
struct hists *hists,
|
|
FILE *fp)
|
|
{
|
|
int left_margin = 0;
|
|
u64 total_period = hists->stats.total_period;
|
|
|
|
if (sort__first_dimension == SORT_COMM) {
|
|
struct sort_entry *se = list_first_entry(&hist_entry__sort_list,
|
|
typeof(*se), list);
|
|
left_margin = hists__col_len(hists, se->se_width_idx);
|
|
left_margin -= thread__comm_len(he->thread);
|
|
}
|
|
|
|
return hist_entry_callchain__fprintf(he, total_period, left_margin, fp);
|
|
}
|
|
|
|
static int hist_entry__fprintf(struct hist_entry *he, size_t size,
|
|
struct hists *hists, FILE *fp)
|
|
{
|
|
char bf[512];
|
|
int ret;
|
|
struct perf_hpp hpp = {
|
|
.buf = bf,
|
|
.size = size,
|
|
};
|
|
bool color = !symbol_conf.field_sep;
|
|
|
|
if (size == 0 || size > sizeof(bf))
|
|
size = hpp.size = sizeof(bf);
|
|
|
|
ret = hist_entry__period_snprintf(&hpp, he, color);
|
|
hist_entry__sort_snprintf(he, bf + ret, size - ret, hists);
|
|
|
|
ret = fprintf(fp, "%s\n", bf);
|
|
|
|
if (symbol_conf.use_callchain)
|
|
ret += hist_entry__callchain_fprintf(he, hists, fp);
|
|
|
|
return ret;
|
|
}
|
|
|
|
size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
|
|
int max_cols, FILE *fp)
|
|
{
|
|
struct sort_entry *se;
|
|
struct rb_node *nd;
|
|
size_t ret = 0;
|
|
unsigned int width;
|
|
const char *sep = symbol_conf.field_sep;
|
|
const char *col_width = symbol_conf.col_width_list_str;
|
|
int idx, nr_rows = 0;
|
|
char bf[64];
|
|
struct perf_hpp dummy_hpp = {
|
|
.buf = bf,
|
|
.size = sizeof(bf),
|
|
};
|
|
bool first = true;
|
|
|
|
init_rem_hits();
|
|
|
|
if (!show_header)
|
|
goto print_entries;
|
|
|
|
fprintf(fp, "# ");
|
|
for (idx = 0; idx < PERF_HPP__MAX_INDEX; idx++) {
|
|
if (!perf_hpp__format[idx].cond)
|
|
continue;
|
|
|
|
if (!first)
|
|
fprintf(fp, "%s", sep ?: " ");
|
|
else
|
|
first = false;
|
|
|
|
perf_hpp__format[idx].header(&dummy_hpp);
|
|
fprintf(fp, "%s", bf);
|
|
}
|
|
|
|
list_for_each_entry(se, &hist_entry__sort_list, list) {
|
|
if (se->elide)
|
|
continue;
|
|
if (sep) {
|
|
fprintf(fp, "%c%s", *sep, se->se_header);
|
|
continue;
|
|
}
|
|
width = strlen(se->se_header);
|
|
if (symbol_conf.col_width_list_str) {
|
|
if (col_width) {
|
|
hists__set_col_len(hists, se->se_width_idx,
|
|
atoi(col_width));
|
|
col_width = strchr(col_width, ',');
|
|
if (col_width)
|
|
++col_width;
|
|
}
|
|
}
|
|
if (!hists__new_col_len(hists, se->se_width_idx, width))
|
|
width = hists__col_len(hists, se->se_width_idx);
|
|
fprintf(fp, " %*s", width, se->se_header);
|
|
}
|
|
|
|
fprintf(fp, "\n");
|
|
if (max_rows && ++nr_rows >= max_rows)
|
|
goto out;
|
|
|
|
if (sep)
|
|
goto print_entries;
|
|
|
|
first = true;
|
|
|
|
fprintf(fp, "# ");
|
|
for (idx = 0; idx < PERF_HPP__MAX_INDEX; idx++) {
|
|
unsigned int i;
|
|
|
|
if (!perf_hpp__format[idx].cond)
|
|
continue;
|
|
|
|
if (!first)
|
|
fprintf(fp, "%s", sep ?: " ");
|
|
else
|
|
first = false;
|
|
|
|
width = perf_hpp__format[idx].width(&dummy_hpp);
|
|
for (i = 0; i < width; i++)
|
|
fprintf(fp, ".");
|
|
}
|
|
|
|
list_for_each_entry(se, &hist_entry__sort_list, list) {
|
|
unsigned int i;
|
|
|
|
if (se->elide)
|
|
continue;
|
|
|
|
fprintf(fp, " ");
|
|
width = hists__col_len(hists, se->se_width_idx);
|
|
if (width == 0)
|
|
width = strlen(se->se_header);
|
|
for (i = 0; i < width; i++)
|
|
fprintf(fp, ".");
|
|
}
|
|
|
|
fprintf(fp, "\n");
|
|
if (max_rows && ++nr_rows >= max_rows)
|
|
goto out;
|
|
|
|
fprintf(fp, "#\n");
|
|
if (max_rows && ++nr_rows >= max_rows)
|
|
goto out;
|
|
|
|
print_entries:
|
|
for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
|
|
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
|
|
|
|
if (h->filtered)
|
|
continue;
|
|
|
|
ret += hist_entry__fprintf(h, max_cols, hists, fp);
|
|
|
|
if (max_rows && ++nr_rows >= max_rows)
|
|
goto out;
|
|
|
|
if (h->ms.map == NULL && verbose > 1) {
|
|
__map_groups__fprintf_maps(&h->thread->mg,
|
|
MAP__FUNCTION, verbose, fp);
|
|
fprintf(fp, "%.10s end\n", graph_dotted_line);
|
|
}
|
|
}
|
|
out:
|
|
free(rem_sq_bracket);
|
|
|
|
return ret;
|
|
}
|
|
|
|
size_t hists__fprintf_nr_events(struct hists *hists, FILE *fp)
|
|
{
|
|
int i;
|
|
size_t ret = 0;
|
|
|
|
for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) {
|
|
const char *name;
|
|
|
|
if (hists->stats.nr_events[i] == 0)
|
|
continue;
|
|
|
|
name = perf_event__name(i);
|
|
if (!strcmp(name, "UNKNOWN"))
|
|
continue;
|
|
|
|
ret += fprintf(fp, "%16s events: %10d\n", name,
|
|
hists->stats.nr_events[i]);
|
|
}
|
|
|
|
return ret;
|
|
}
|