| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1393229368-31412-3-git-send-email-namhyung@kernel.org>
Date: Mon, 24 Feb 2014 17:09:22 +0900
From: Namhyung Kim <namhyung@...nel.org>
To: Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Ingo Molnar <mingo@...nel.org>,
Paul Mackerras <paulus@...ba.org>,
Namhyung Kim <namhyung.kim@....com>,
Namhyung Kim <namhyung@...nel.org>,
LKML <linux-kernel@...r.kernel.org>,
Jiri Olsa <jolsa@...hat.com>, David Ahern <dsahern@...il.com>,
Andi Kleen <andi@...stfloor.org>
Subject: [PATCH 2/8] perf hists: Add support for showing relative percentage
When filtering by thread, dso or symbol on TUI it also update total
period so that the output shows different result than no filter - the
percentage changed to relative to filtered entries only. Sometimes
this is not desired since users might expect same results with filter.
So new filtered_* fields to hists->stats to count them separately.
They'll be controlled/used by user later.
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
tools/perf/builtin-report.c | 6 ++++++
tools/perf/util/hist.c | 19 +++++++++++++++----
tools/perf/util/hist.h | 2 ++
3 files changed, 23 insertions(+), 4 deletions(-)
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 5f7f1a332186..3f8478603d51 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -121,6 +121,8 @@ static int report__add_mem_hist_entry(struct report *rep, struct addr_location *
evsel->hists.stats.total_period += cost;
hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
+ if (!he->filtered)
+ evsel->hists.stats.nr_filtered_samples++;
err = hist_entry__append_callchain(he, sample);
out:
return err;
@@ -170,6 +172,8 @@ static int report__add_branch_hist_entry(struct report *rep, struct addr_locatio
evsel->hists.stats.total_period += 1;
hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
+ if (!he->filtered)
+ evsel->hists.stats.nr_filtered_samples++;
} else
goto out;
}
@@ -201,6 +205,8 @@ static int report__add_hist_entry(struct report *rep, struct perf_evsel *evsel,
err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
evsel->hists.stats.total_period += sample->period;
+ if (!he->filtered)
+ evsel->hists.stats.nr_filtered_samples++;
hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
out:
return err;
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index d0c40897c955..743947d891bd 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -675,8 +675,8 @@ void hists__output_resort(struct hists *hists)
next = rb_first(root);
hists->entries = RB_ROOT;
- hists->nr_entries = 0;
- hists->stats.total_period = 0;
+ hists->nr_entries = hists->nr_filtered_entries = 0;
+ hists->stats.total_period = hists->stats.total_filtered_period = 0;
hists__reset_col_len(hists);
while (next) {
@@ -695,12 +695,17 @@ static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *h
if (h->filtered)
return;
- ++hists->nr_entries;
- if (h->ms.unfolded)
+ hists->nr_entries++;
+ hists->nr_filtered_entries++;
+ if (h->ms.unfolded) {
hists->nr_entries += h->nr_rows;
+ hists->nr_filtered_entries += h->nr_rows;
+ }
h->row_offset = 0;
hists->stats.total_period += h->stat.period;
+ hists->stats.total_filtered_period += h->stat.period;
hists->stats.nr_events[PERF_RECORD_SAMPLE] += h->stat.nr_events;
+ hists->stats.nr_filtered_samples += h->stat.nr_events;
hists__calc_col_len(hists, h);
}
@@ -723,7 +728,9 @@ void hists__filter_by_dso(struct hists *hists)
struct rb_node *nd;
hists->nr_entries = hists->stats.total_period = 0;
+ hists->nr_filtered_entries = hists->stats.total_filtered_period = 0;
hists->stats.nr_events[PERF_RECORD_SAMPLE] = 0;
+ hists->stats.nr_filtered_samples = 0;
hists__reset_col_len(hists);
for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
@@ -756,7 +763,9 @@ void hists__filter_by_thread(struct hists *hists)
struct rb_node *nd;
hists->nr_entries = hists->stats.total_period = 0;
+ hists->nr_filtered_entries = hists->stats.total_filtered_period = 0;
hists->stats.nr_events[PERF_RECORD_SAMPLE] = 0;
+ hists->stats.nr_filtered_samples = 0;
hists__reset_col_len(hists);
for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
@@ -787,7 +796,9 @@ void hists__filter_by_symbol(struct hists *hists)
struct rb_node *nd;
hists->nr_entries = hists->stats.total_period = 0;
+ hists->nr_filtered_entries = hists->stats.total_filtered_period = 0;
hists->stats.nr_events[PERF_RECORD_SAMPLE] = 0;
+ hists->stats.nr_filtered_samples = 0;
hists__reset_col_len(hists);
for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index bdfd821e2435..2f5686f4031b 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -41,6 +41,7 @@ struct events_stats {
u64 total_lost;
u64 total_invalid_chains;
u32 nr_events[PERF_RECORD_HEADER_MAX];
+ u32 nr_filtered_samples;
u32 nr_lost_warned;
u32 nr_unknown_events;
u32 nr_invalid_chains;
@@ -84,6 +85,7 @@ struct hists {
struct rb_root entries;
struct rb_root entries_collapsed;
u64 nr_entries;
+ u64 nr_filtered_entries;
const struct thread *thread_filter;
const struct dso *dso_filter;
const char *uid_filter_str;
--
1.7.11.7
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists