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Subject[tip:perf/urgent] perf report: Show progress bar for output resorting
Commit-ID:  740b97f9509ac5a015278940747178af4eb0900d
Gitweb: http://git.kernel.org/tip/740b97f9509ac5a015278940747178af4eb0900d
Author: Namhyung Kim <namhyung@kernel.org>
AuthorDate: Mon, 22 Dec 2014 13:44:10 +0900
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 23 Dec 2014 12:01:37 -0300

perf report: Show progress bar for output resorting

Sometimes it takes a long time to resort hist entries for output in case
of a large data file. Show a progress bar window and inform user.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1419223455-4362-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-annotate.c | 2 +-
tools/perf/builtin-diff.c | 2 +-
tools/perf/builtin-report.c | 24 ++++++++++++++++++++++--
tools/perf/builtin-top.c | 4 ++--
tools/perf/tests/hists_cumulate.c | 2 +-
tools/perf/tests/hists_filter.c | 2 +-
tools/perf/tests/hists_output.c | 10 +++++-----
tools/perf/util/hist.c | 10 +++++++++-
tools/perf/util/hist.h | 2 +-
9 files changed, 43 insertions(+), 15 deletions(-)

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index e7417fe..747f861 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -232,7 +232,7 @@ static int __cmd_annotate(struct perf_annotate *ann)
if (nr_samples > 0) {
total_nr_samples += nr_samples;
hists__collapse_resort(hists, NULL);
- hists__output_resort(hists);
+ hists__output_resort(hists, NULL);

if (symbol_conf.event_group &&
!perf_evsel__is_group_leader(pos))
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 1ce425d..303c1e1 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -605,7 +605,7 @@ static void hists__process(struct hists *hists)
hists__precompute(hists);
hists__compute_resort(hists);
} else {
- hists__output_resort(hists);
+ hists__output_resort(hists, NULL);
}

hists__fprintf(hists, true, 0, 0, 0, stdout);
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 3936760..072ae8a 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -457,6 +457,19 @@ static void report__collapse_hists(struct report *rep)
ui_progress__finish();
}

+static void report__output_resort(struct report *rep)
+{
+ struct ui_progress prog;
+ struct perf_evsel *pos;
+
+ ui_progress__init(&prog, rep->nr_entries, "Sorting events for output...");
+
+ evlist__for_each(rep->session->evlist, pos)
+ hists__output_resort(evsel__hists(pos), &prog);
+
+ ui_progress__finish();
+}
+
static int __cmd_report(struct report *rep)
{
int ret;
@@ -505,13 +518,20 @@ static int __cmd_report(struct report *rep)
if (session_done())
return 0;

+ /*
+ * recalculate number of entries after collapsing since it
+ * might be changed during the collapse phase.
+ */
+ rep->nr_entries = 0;
+ evlist__for_each(session->evlist, pos)
+ rep->nr_entries += evsel__hists(pos)->nr_entries;
+
if (rep->nr_entries == 0) {
ui__error("The %s file has no samples!\n", file->path);
return 0;
}

- evlist__for_each(session->evlist, pos)
- hists__output_resort(evsel__hists(pos));
+ report__output_resort(rep);

return report__browse_hists(rep);
}
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 0aa7747..961cea1 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -285,7 +285,7 @@ static void perf_top__print_sym_table(struct perf_top *top)
}

hists__collapse_resort(hists, NULL);
- hists__output_resort(hists);
+ hists__output_resort(hists, NULL);

hists__output_recalc_col_len(hists, top->print_entries - printed);
putchar('\n');
@@ -554,7 +554,7 @@ static void perf_top__sort_new_samples(void *arg)
}

hists__collapse_resort(hists, NULL);
- hists__output_resort(hists);
+ hists__output_resort(hists, NULL);
}

static void *display_thread_tui(void *arg)
diff --git a/tools/perf/tests/hists_cumulate.c b/tools/perf/tests/hists_cumulate.c
index 614d5c4..4b8226e 100644
--- a/tools/perf/tests/hists_cumulate.c
+++ b/tools/perf/tests/hists_cumulate.c
@@ -187,7 +187,7 @@ static int do_test(struct hists *hists, struct result *expected, size_t nr_expec
* function since TEST_ASSERT_VAL() returns in case of failure.
*/
hists__collapse_resort(hists, NULL);
- hists__output_resort(hists);
+ hists__output_resort(hists, NULL);

if (verbose > 2) {
pr_info("use callchain: %d, cumulate callchain: %d\n",
diff --git a/tools/perf/tests/hists_filter.c b/tools/perf/tests/hists_filter.c
index 74f257a..59e53db 100644
--- a/tools/perf/tests/hists_filter.c
+++ b/tools/perf/tests/hists_filter.c
@@ -138,7 +138,7 @@ int test__hists_filter(void)
struct hists *hists = evsel__hists(evsel);

hists__collapse_resort(hists, NULL);
- hists__output_resort(hists);
+ hists__output_resort(hists, NULL);

if (verbose > 2) {
pr_info("Normal histogram\n");
diff --git a/tools/perf/tests/hists_output.c b/tools/perf/tests/hists_output.c
index a748f2b..f554761 100644
--- a/tools/perf/tests/hists_output.c
+++ b/tools/perf/tests/hists_output.c
@@ -152,7 +152,7 @@ static int test1(struct perf_evsel *evsel, struct machine *machine)
goto out;

hists__collapse_resort(hists, NULL);
- hists__output_resort(hists);
+ hists__output_resort(hists, NULL);

if (verbose > 2) {
pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
@@ -252,7 +252,7 @@ static int test2(struct perf_evsel *evsel, struct machine *machine)
goto out;

hists__collapse_resort(hists, NULL);
- hists__output_resort(hists);
+ hists__output_resort(hists, NULL);

if (verbose > 2) {
pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
@@ -306,7 +306,7 @@ static int test3(struct perf_evsel *evsel, struct machine *machine)
goto out;

hists__collapse_resort(hists, NULL);
- hists__output_resort(hists);
+ hists__output_resort(hists, NULL);

if (verbose > 2) {
pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
@@ -384,7 +384,7 @@ static int test4(struct perf_evsel *evsel, struct machine *machine)
goto out;

hists__collapse_resort(hists, NULL);
- hists__output_resort(hists);
+ hists__output_resort(hists, NULL);

if (verbose > 2) {
pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
@@ -487,7 +487,7 @@ static int test5(struct perf_evsel *evsel, struct machine *machine)
goto out;

hists__collapse_resort(hists, NULL);
- hists__output_resort(hists);
+ hists__output_resort(hists, NULL);

if (verbose > 2) {
pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 6e88b9e..1cc6ea4 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -6,6 +6,7 @@
#include "evlist.h"
#include "evsel.h"
#include "annotate.h"
+#include "ui/progress.h"
#include <math.h>

static bool hists__filter_entry_by_dso(struct hists *hists,
@@ -987,6 +988,7 @@ static bool hists__collapse_insert_entry(struct hists *hists __maybe_unused,
else
p = &(*p)->rb_right;
}
+ hists->nr_entries++;

rb_link_node(&he->rb_node_in, parent, p);
rb_insert_color(&he->rb_node_in, root);
@@ -1024,7 +1026,10 @@ void hists__collapse_resort(struct hists *hists, struct ui_progress *prog)
if (!sort__need_collapse)
return;

+ hists->nr_entries = 0;
+
root = hists__get_rotate_entries_in(hists);
+
next = rb_first(root);

while (next) {
@@ -1119,7 +1124,7 @@ static void __hists__insert_output_entry(struct rb_root *entries,
rb_insert_color(&he->rb_node, entries);
}

-void hists__output_resort(struct hists *hists)
+void hists__output_resort(struct hists *hists, struct ui_progress *prog)
{
struct rb_root *root;
struct rb_node *next;
@@ -1148,6 +1153,9 @@ void hists__output_resort(struct hists *hists)

if (!n->filtered)
hists__calc_col_len(hists, n);
+
+ if (prog)
+ ui_progress__update(prog, 1);
}
}

diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index d0ef9a1..46bd503 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -121,7 +121,7 @@ int hist_entry__sort_snprintf(struct hist_entry *he, char *bf, size_t size,
struct hists *hists);
void hist_entry__free(struct hist_entry *);

-void hists__output_resort(struct hists *hists);
+void hists__output_resort(struct hists *hists, struct ui_progress *prog);
void hists__collapse_resort(struct hists *hists, struct ui_progress *prog);

void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);

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