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Subject[PATCH 1/2] perf util: Refactor block info to reduce tight coupling with report
Date
We have already implemented some block-info functions.
But these functions are tightly coupled with perf-report, it's
not good for reusing by other builtins (i.e. perf-diff).

This patch refactors the functions, structures and definitions
to make them to be more flexible for other builtins.

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
---
tools/perf/builtin-diff.c | 17 -----
tools/perf/builtin-report.c | 25 +++++--
tools/perf/util/block-info.c | 128 +++++++++++++++++++++++++----------
tools/perf/util/block-info.h | 28 +++++---
4 files changed, 129 insertions(+), 69 deletions(-)

diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index f8b6ae557d8b..5ff1e21082cb 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -572,23 +572,6 @@ static void init_block_hist(struct block_hist *bh)
bh->valid = true;
}

-static int block_pair_cmp(struct hist_entry *a, struct hist_entry *b)
-{
- struct block_info *bi_a = a->block_info;
- struct block_info *bi_b = b->block_info;
- int cmp;
-
- if (!bi_a->sym || !bi_b->sym)
- return -1;
-
- cmp = strcmp(bi_a->sym->name, bi_b->sym->name);
-
- if ((!cmp) && (bi_a->start == bi_b->start) && (bi_a->end == bi_b->end))
- return 0;
-
- return -1;
-}
-
static struct hist_entry *get_block_pair(struct hist_entry *he,
struct hists *hists_pair)
{
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index de988589d99b..638229bf7a08 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -104,6 +104,7 @@ struct report {
bool symbol_ipc;
bool total_cycles_mode;
struct block_report *block_reports;
+ int nr_block_reports;
};

static int report__config(const char *var, const char *value, void *cb)
@@ -503,7 +504,7 @@ static int perf_evlist__tui_block_hists_browse(struct evlist *evlist,
ret = report__browse_block_hists(&rep->block_reports[i++].hist,
rep->min_percent, pos,
&rep->session->header.env,
- &rep->annotation_opts);
+ &rep->annotation_opts, true);
if (ret != 0)
return ret;
}
@@ -536,7 +537,7 @@ static int perf_evlist__tty_browse_hists(struct evlist *evlist,
if (rep->total_cycles_mode) {
report__browse_block_hists(&rep->block_reports[i++].hist,
rep->min_percent, pos,
- NULL, NULL);
+ NULL, NULL, true);
continue;
}

@@ -966,8 +967,19 @@ static int __cmd_report(struct report *rep)
report__output_resort(rep);

if (rep->total_cycles_mode) {
+ int block_hpps[6] = {
+ PERF_HPP__BLOCK_TOTAL_CYCLES_PCT,
+ PERF_HPP__BLOCK_LBR_CYCLES,
+ PERF_HPP__BLOCK_CYCLES_PCT,
+ PERF_HPP__BLOCK_AVG_CYCLES,
+ PERF_HPP__BLOCK_RANGE,
+ PERF_HPP__BLOCK_DSO,
+ };
+
rep->block_reports = block_info__create_report(session->evlist,
- rep->total_cycles);
+ rep->total_cycles,
+ block_hpps, 6,
+ &rep->nr_block_reports);
if (!rep->block_reports)
return -1;
}
@@ -1543,8 +1555,11 @@ int cmd_report(int argc, const char **argv)
zfree(&report.ptime_range);
}

- if (report.block_reports)
- zfree(&report.block_reports);
+ if (report.block_reports) {
+ block_info__free_report(report.block_reports,
+ report.nr_block_reports);
+ report.block_reports = NULL;
+ }

zstd_fini(&(session->zstd_data));
perf_session__delete(session);
diff --git a/tools/perf/util/block-info.c b/tools/perf/util/block-info.c
index c4b030bf6ec2..55ccff2e0d5d 100644
--- a/tools/perf/util/block-info.c
+++ b/tools/perf/util/block-info.c
@@ -12,35 +12,36 @@
#include "evlist.h"
#include "hist.h"
#include "ui/browsers/hists.h"
+#include "debug.h"

static struct block_header_column {
const char *name;
int width;
-} block_columns[PERF_HPP_REPORT__BLOCK_MAX_INDEX] = {
- [PERF_HPP_REPORT__BLOCK_TOTAL_CYCLES_PCT] = {
+} block_columns[PERF_HPP__BLOCK_MAX_INDEX] = {
+ [PERF_HPP__BLOCK_TOTAL_CYCLES_PCT] = {
.name = "Sampled Cycles%",
.width = 15,
},
- [PERF_HPP_REPORT__BLOCK_LBR_CYCLES] = {
+ [PERF_HPP__BLOCK_LBR_CYCLES] = {
.name = "Sampled Cycles",
.width = 14,
},
- [PERF_HPP_REPORT__BLOCK_CYCLES_PCT] = {
+ [PERF_HPP__BLOCK_CYCLES_PCT] = {
.name = "Avg Cycles%",
.width = 11,
},
- [PERF_HPP_REPORT__BLOCK_AVG_CYCLES] = {
+ [PERF_HPP__BLOCK_AVG_CYCLES] = {
.name = "Avg Cycles",
.width = 10,
},
- [PERF_HPP_REPORT__BLOCK_RANGE] = {
+ [PERF_HPP__BLOCK_RANGE] = {
.name = "[Program Block Range]",
.width = 70,
},
- [PERF_HPP_REPORT__BLOCK_DSO] = {
+ [PERF_HPP__BLOCK_DSO] = {
.name = "Shared Object",
.width = 20,
- }
+ },
};

struct block_info *block_info__get(struct block_info *bi)
@@ -328,7 +329,7 @@ static void init_block_header(struct block_fmt *block_fmt)
{
struct perf_hpp_fmt *fmt = &block_fmt->fmt;

- BUG_ON(block_fmt->idx >= PERF_HPP_REPORT__BLOCK_MAX_INDEX);
+ BUG_ON(block_fmt->idx >= PERF_HPP__BLOCK_MAX_INDEX);

block_fmt->header = block_columns[block_fmt->idx].name;
block_fmt->width = block_columns[block_fmt->idx].width;
@@ -347,24 +348,24 @@ static void hpp_register(struct block_fmt *block_fmt, int idx,
INIT_LIST_HEAD(&fmt->sort_list);

switch (idx) {
- case PERF_HPP_REPORT__BLOCK_TOTAL_CYCLES_PCT:
+ case PERF_HPP__BLOCK_TOTAL_CYCLES_PCT:
fmt->entry = block_total_cycles_pct_entry;
fmt->cmp = block_info__cmp;
fmt->sort = block_total_cycles_pct_sort;
break;
- case PERF_HPP_REPORT__BLOCK_LBR_CYCLES:
+ case PERF_HPP__BLOCK_LBR_CYCLES:
fmt->entry = block_cycles_lbr_entry;
break;
- case PERF_HPP_REPORT__BLOCK_CYCLES_PCT:
+ case PERF_HPP__BLOCK_CYCLES_PCT:
fmt->entry = block_cycles_pct_entry;
break;
- case PERF_HPP_REPORT__BLOCK_AVG_CYCLES:
+ case PERF_HPP__BLOCK_AVG_CYCLES:
fmt->entry = block_avg_cycles_entry;
break;
- case PERF_HPP_REPORT__BLOCK_RANGE:
+ case PERF_HPP__BLOCK_RANGE:
fmt->entry = block_range_entry;
break;
- case PERF_HPP_REPORT__BLOCK_DSO:
+ case PERF_HPP__BLOCK_DSO:
fmt->entry = block_dso_entry;
break;
default:
@@ -376,33 +377,42 @@ static void hpp_register(struct block_fmt *block_fmt, int idx,
}

static void register_block_columns(struct perf_hpp_list *hpp_list,
- struct block_fmt *block_fmts)
+ struct block_fmt *block_fmts,
+ int *block_hpps, int nr_hpps)
{
- for (int i = 0; i < PERF_HPP_REPORT__BLOCK_MAX_INDEX; i++)
- hpp_register(&block_fmts[i], i, hpp_list);
+ for (int i = 0; i < nr_hpps; i++)
+ hpp_register(&block_fmts[i], block_hpps[i], hpp_list);
}

-static void init_block_hist(struct block_hist *bh, struct block_fmt *block_fmts)
+static void init_block_hist(struct block_hist *bh, struct block_fmt *block_fmts,
+ int *block_hpps, int nr_hpps)
{
__hists__init(&bh->block_hists, &bh->block_list);
perf_hpp_list__init(&bh->block_list);
bh->block_list.nr_header_lines = 1;

- register_block_columns(&bh->block_list, block_fmts);
+ register_block_columns(&bh->block_list, block_fmts,
+ block_hpps, nr_hpps);

- perf_hpp_list__register_sort_field(&bh->block_list,
- &block_fmts[PERF_HPP_REPORT__BLOCK_TOTAL_CYCLES_PCT].fmt);
+ /* Sort by the first fmt */
+ perf_hpp_list__register_sort_field(&bh->block_list, &block_fmts[0].fmt);
}

-static void process_block_report(struct hists *hists,
- struct block_report *block_report,
- u64 total_cycles)
+static int process_block_report(struct hists *hists,
+ struct block_report *block_report,
+ u64 total_cycles, int *block_hpps,
+ int nr_hpps)
{
struct rb_node *next = rb_first_cached(&hists->entries);
struct block_hist *bh = &block_report->hist;
struct hist_entry *he;

- init_block_hist(bh, block_report->fmts);
+ block_report->fmts = calloc(nr_hpps, sizeof(struct block_fmt));
+ if (!block_report->fmts)
+ return -1;
+
+ block_report->nr_fmts = nr_hpps;
+ init_block_hist(bh, block_report->fmts, block_hpps, nr_hpps);

while (next) {
he = rb_entry(next, struct hist_entry, rb_node);
@@ -411,16 +421,19 @@ static void process_block_report(struct hists *hists,
next = rb_next(&he->rb_node);
}

- for (int i = 0; i < PERF_HPP_REPORT__BLOCK_MAX_INDEX; i++) {
+ for (int i = 0; i < nr_hpps; i++) {
block_report->fmts[i].total_cycles = total_cycles;
block_report->fmts[i].block_cycles = block_report->cycles;
}

hists__output_resort(&bh->block_hists, NULL);
+ return 0;
}

struct block_report *block_info__create_report(struct evlist *evlist,
- u64 total_cycles)
+ u64 total_cycles,
+ int *block_hpps, int nr_hpps,
+ int *nr_reps)
{
struct block_report *block_reports;
int nr_hists = evlist->core.nr_entries, i = 0;
@@ -433,16 +446,40 @@ struct block_report *block_info__create_report(struct evlist *evlist,
evlist__for_each_entry(evlist, pos) {
struct hists *hists = evsel__hists(pos);

- process_block_report(hists, &block_reports[i], total_cycles);
+ process_block_report(hists, &block_reports[i], total_cycles,
+ block_hpps, nr_hpps);
i++;
}

+ *nr_reps = nr_hists;
return block_reports;
}

+float block_info__total_cycles_percent(struct hist_entry *he)
+{
+ struct block_info *bi = he->block_info;
+
+ if (bi->total_cycles)
+ return bi->cycles * 100.0 / bi->total_cycles;
+
+ return 0.0;
+}
+
+void block_info__free_report(struct block_report *reps, int nr_reps)
+{
+ for (int i = 0; i < nr_reps; i++) {
+ hists__delete_entries(&reps[i].hist.block_hists);
+ if (reps[i].fmts)
+ free(reps[i].fmts);
+ }
+
+ free(reps);
+}
+
int report__browse_block_hists(struct block_hist *bh, float min_percent,
struct evsel *evsel, struct perf_env *env,
- struct annotation_options *annotation_opts)
+ struct annotation_options *annotation_opts,
+ bool release)
{
int ret;

@@ -451,13 +488,17 @@ int report__browse_block_hists(struct block_hist *bh, float min_percent,
symbol_conf.report_individual_block = true;
hists__fprintf(&bh->block_hists, true, 0, 0, min_percent,
stdout, true);
- hists__delete_entries(&bh->block_hists);
+ if (release)
+ hists__delete_entries(&bh->block_hists);
+
return 0;
case 1:
symbol_conf.report_individual_block = true;
ret = block_hists_tui_browse(bh, evsel, min_percent,
env, annotation_opts);
- hists__delete_entries(&bh->block_hists);
+ if (release)
+ hists__delete_entries(&bh->block_hists);
+
return ret;
default:
return -1;
@@ -466,12 +507,25 @@ int report__browse_block_hists(struct block_hist *bh, float min_percent,
return 0;
}

-float block_info__total_cycles_percent(struct hist_entry *he)
+int block_pair_cmp(struct hist_entry *pair, struct hist_entry *he)
{
- struct block_info *bi = he->block_info;
+ struct block_info *bi_p = pair->block_info;
+ struct block_info *bi_h = he->block_info;
+ struct map_symbol *ms_p = &pair->ms;
+ struct map_symbol *ms_h = &he->ms;
+ int cmp;

- if (bi->total_cycles)
- return bi->cycles * 100.0 / bi->total_cycles;
+ if (!ms_p->map || !ms_p->map->dso || !ms_p->sym ||
+ !ms_h->map || !ms_h->map->dso || !ms_h->sym) {
+ return -1;
+ }

- return 0.0;
+ cmp = strcmp(ms_p->sym->name, ms_h->sym->name);
+ if (cmp)
+ return -1;
+
+ if ((bi_p->start == bi_h->start) && (bi_p->end == bi_h->end))
+ return 0;
+
+ return -1;
}
diff --git a/tools/perf/util/block-info.h b/tools/perf/util/block-info.h
index bef0d75e9819..b59b778422f3 100644
--- a/tools/perf/util/block-info.h
+++ b/tools/perf/util/block-info.h
@@ -32,19 +32,20 @@ struct block_fmt {
};

enum {
- PERF_HPP_REPORT__BLOCK_TOTAL_CYCLES_PCT,
- PERF_HPP_REPORT__BLOCK_LBR_CYCLES,
- PERF_HPP_REPORT__BLOCK_CYCLES_PCT,
- PERF_HPP_REPORT__BLOCK_AVG_CYCLES,
- PERF_HPP_REPORT__BLOCK_RANGE,
- PERF_HPP_REPORT__BLOCK_DSO,
- PERF_HPP_REPORT__BLOCK_MAX_INDEX
+ PERF_HPP__BLOCK_TOTAL_CYCLES_PCT,
+ PERF_HPP__BLOCK_LBR_CYCLES,
+ PERF_HPP__BLOCK_CYCLES_PCT,
+ PERF_HPP__BLOCK_AVG_CYCLES,
+ PERF_HPP__BLOCK_RANGE,
+ PERF_HPP__BLOCK_DSO,
+ PERF_HPP__BLOCK_MAX_INDEX
};

struct block_report {
struct block_hist hist;
u64 cycles;
- struct block_fmt fmts[PERF_HPP_REPORT__BLOCK_MAX_INDEX];
+ struct block_fmt *fmts;
+ int nr_fmts;
};

struct block_hist;
@@ -68,12 +69,19 @@ int block_info__process_sym(struct hist_entry *he, struct block_hist *bh,
u64 *block_cycles_aggr, u64 total_cycles);

struct block_report *block_info__create_report(struct evlist *evlist,
- u64 total_cycles);
+ u64 total_cycles,
+ int *block_hpps, int nr_hpps,
+ int *nr_reps);
+
+void block_info__free_report(struct block_report *reps, int nr_reps);

int report__browse_block_hists(struct block_hist *bh, float min_percent,
struct evsel *evsel, struct perf_env *env,
- struct annotation_options *annotation_opts);
+ struct annotation_options *annotation_opts,
+ bool release);

float block_info__total_cycles_percent(struct hist_entry *he);

+int block_pair_cmp(struct hist_entry *pair, struct hist_entry *he);
+
#endif /* __PERF_BLOCK_H */
--
2.17.1
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