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perf tools: No need for three rb_trees for sorting hist entries 

All hist entries are in only one of them, so use just one and a
temporary rb_root while sorting/collapsing.

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: <1260797831-11220-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Arnaldo Carvalho de Melo 2009-12-14 11:37:11 -02:00 committed by Ingo Molnar
parent 4aa6563641
commit b9bf089212
4 changed files with 22 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/perf/builtin-annotate.c
View File

@ -432,7 +432,7 @@ static void find_annotations(void)
{
struct rb_node *nd;
for (nd = rb_first(&output_hists); nd; nd = rb_next(nd)) {
for (nd = rb_first(&hist); nd; nd = rb_next(nd)) {
struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
struct sym_priv *priv;

2
tools/perf/builtin-report.c
View File

@ -567,7 +567,7 @@ static size_t output__fprintf(FILE *fp, u64 total_samples)
fprintf(fp, "#\n");
print_entries:
for (nd = rb_first(&output_hists); nd; nd = rb_next(nd)) {
for (nd = rb_first(&hist); nd; nd = rb_next(nd)) {
pos = rb_entry(nd, struct hist_entry, rb_node);
ret += hist_entry__fprintf(fp, pos, total_samples);
}

36
tools/perf/util/hist.c
View File

@ -1,8 +1,6 @@
#include "hist.h"
struct rb_root hist;
struct rb_root collapse_hists;
struct rb_root output_hists;
int callchain;
struct callchain_param callchain_param = {
@ -102,9 +100,9 @@ void hist_entry__free(struct hist_entry *he)
* collapse the histogram
*/
void collapse__insert_entry(struct hist_entry *he)
static void collapse__insert_entry(struct rb_root *root, struct hist_entry *he)
{
struct rb_node **p = &collapse_hists.rb_node;
struct rb_node **p = &root->rb_node;
struct rb_node *parent = NULL;
struct hist_entry *iter;
int64_t cmp;
@ -128,34 +126,40 @@ void collapse__insert_entry(struct hist_entry *he)
}
rb_link_node(&he->rb_node, parent, p);
rb_insert_color(&he->rb_node, &collapse_hists);
rb_insert_color(&he->rb_node, root);
}
void collapse__resort(void)
{
struct rb_root tmp;
struct rb_node *next;
struct hist_entry *n;
if (!sort__need_collapse)
return;
tmp = RB_ROOT;
next = rb_first(&hist);
while (next) {
n = rb_entry(next, struct hist_entry, rb_node);
next = rb_next(&n->rb_node);
rb_erase(&n->rb_node, &hist);
collapse__insert_entry(n);
collapse__insert_entry(&tmp, n);
}
hist = tmp;
}
/*
* reverse the map, sort on count.
*/
void output__insert_entry(struct hist_entry *he, u64 min_callchain_hits)
static void output__insert_entry(struct rb_root *root, struct hist_entry *he,
u64 min_callchain_hits)
{
struct rb_node **p = &output_hists.rb_node;
struct rb_node **p = &root->rb_node;
struct rb_node *parent = NULL;
struct hist_entry *iter;
@ -174,29 +178,29 @@ void output__insert_entry(struct hist_entry *he, u64 min_callchain_hits)
}
rb_link_node(&he->rb_node, parent, p);
rb_insert_color(&he->rb_node, &output_hists);
rb_insert_color(&he->rb_node, root);
}
void output__resort(u64 total_samples)
{
struct rb_root tmp;
struct rb_node *next;
struct hist_entry *n;
struct rb_root *tree = &hist;
u64 min_callchain_hits;
min_callchain_hits =
total_samples * (callchain_param.min_percent / 100);
if (sort__need_collapse)
tree = &collapse_hists;
next = rb_first(tree);
tmp = RB_ROOT;
next = rb_first(&hist);
while (next) {
n = rb_entry(next, struct hist_entry, rb_node);
next = rb_next(&n->rb_node);
rb_erase(&n->rb_node, tree);
output__insert_entry(n, min_callchain_hits);
rb_erase(&n->rb_node, &hist);
output__insert_entry(&tmp, n, min_callchain_hits);
}
hist = tmp;
}

10
tools/perf/util/hist.h
View File

@ -25,16 +25,8 @@
#include "sort.h"
extern struct rb_root hist;
extern struct rb_root collapse_hists;
extern struct rb_root output_hists;
extern int callchain;
extern struct callchain_param callchain_param;
extern unsigned long total;
extern unsigned long total_mmap;
extern unsigned long total_comm;
extern unsigned long total_fork;
extern unsigned long total_unknown;
extern unsigned long total_lost;
struct hist_entry *__hist_entry__add(struct addr_location *al,
struct symbol *parent,
@ -42,9 +34,7 @@ struct hist_entry *__hist_entry__add(struct addr_location *al,
extern int64_t hist_entry__cmp(struct hist_entry *, struct hist_entry *);
extern int64_t hist_entry__collapse(struct hist_entry *, struct hist_entry *);
extern void hist_entry__free(struct hist_entry *);
extern void collapse__insert_entry(struct hist_entry *);
extern void collapse__resort(void);
extern void output__insert_entry(struct hist_entry *, u64);
extern void output__resort(u64);
#endif /* __PERF_HIST_H */