From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, Namhyung Kim <namhyung@kernel.org>,
Andi Kleen <andi@firstfloor.org>, David Ahern <dsahern@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
Stephane Eranian <eranian@google.com>,
Wang Nan <wangnan0@huawei.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 12/19] perf report: Fix indentation of dynamic entries in hierarchy
Date: Fri, 26 Feb 2016 20:18:24 -0300 [thread overview]
Message-ID: <1456528711-13793-13-git-send-email-acme@kernel.org> (raw)
In-Reply-To: <1456528711-13793-1-git-send-email-acme@kernel.org>
From: Namhyung Kim <namhyung@kernel.org>
When dynamic entries are used in the hierarchy mode with multiple
events, the output might not be aligned properly. In the hierarchy
mode, the each sort column is indented using total number of sort keys.
So it keeps track of number of sort keys when adding them. However
a dynamic sort key can be added more than once when multiple events have
same field names. This results in unnecessarily long indentation in the
output.
For example perf kmem records following events:
$ perf evlist --trace-fields -i perf.data.kmem
kmem:kmalloc: trace_fields: call_site,ptr,bytes_req,bytes_alloc,gfp_flags
kmem:kmalloc_node: trace_fields: call_site,ptr,bytes_req,bytes_alloc,gfp_flags,node
kmem:kfree: trace_fields: call_site,ptr
kmem:kmem_cache_alloc: trace_fields: call_site,ptr,bytes_req,bytes_alloc,gfp_flags
kmem:kmem_cache_alloc_node: trace_fields: call_site,ptr,bytes_req,bytes_alloc,gfp_flags,node
kmem:kmem_cache_free: trace_fields: call_site,ptr
kmem:mm_page_alloc: trace_fields: page,order,gfp_flags,migratetype
kmem:mm_page_free: trace_fields: page,order
As you can see, many field names shared between kmem events. So adding
'ptr' dynamic sort key alone will set nr_sort_keys to 6. And this adds
many unnecessary spaces between columns.
Before:
$ perf report -i perf.data.kmem --hierarchy -s ptr -g none --stdio
...
# Overhead ptr
# ....................... ...................................
#
99.89% 0xffff8803ffb79720
0.06% 0xffff8803d228a000
0.03% 0xffff8803f7678f00
0.00% 0xffff880401dc5280
0.00% 0xffff880406172380
0.00% 0xffff8803ffac3a00
0.00% 0xffff8803ffac1600
After:
# Overhead ptr
# ........ ....................
#
99.89% 0xffff8803ffb79720
0.06% 0xffff8803d228a000
0.03% 0xffff8803f7678f00
0.00% 0xffff880401dc5280
0.00% 0xffff880406172380
0.00% 0xffff8803ffac3a00
0.00% 0xffff8803ffac1600
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456512767-1164-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/ui/browsers/hists.c | 6 +++---
tools/perf/ui/stdio/hist.c | 6 +++---
tools/perf/util/hist.h | 1 +
tools/perf/util/sort.c | 19 +++++++++++++++++++
4 files changed, 26 insertions(+), 6 deletions(-)
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 71c6d510390f..5f74c6723c53 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1547,7 +1547,7 @@ static int hists_browser__scnprintf_hierarchy_headers(struct hist_browser *brows
struct perf_hpp_fmt *fmt;
size_t ret = 0;
int column = 0;
- int nr_sort_keys = hists->hpp_list->nr_sort_keys;
+ int nr_sort_keys = hists->nr_sort_keys;
bool first = true;
ret = scnprintf(buf, size, " ");
@@ -1632,7 +1632,7 @@ static unsigned int hist_browser__refresh(struct ui_browser *browser)
u16 header_offset = 0;
struct rb_node *nd;
struct hist_browser *hb = container_of(browser, struct hist_browser, b);
- int nr_sort = hb->hists->hpp_list->nr_sort_keys;
+ int nr_sort = hb->hists->nr_sort_keys;
if (hb->show_headers) {
hist_browser__show_headers(hb);
@@ -1969,7 +1969,7 @@ static int hist_browser__fprintf(struct hist_browser *browser, FILE *fp)
struct rb_node *nd = hists__filter_entries(rb_first(browser->b.entries),
browser->min_pcnt);
int printed = 0;
- int nr_sort = browser->hists->hpp_list->nr_sort_keys;
+ int nr_sort = browser->hists->nr_sort_keys;
while (nd) {
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index b3bdfcb245f9..5733d6c196be 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -495,7 +495,7 @@ static int hist_entry__fprintf(struct hist_entry *he, size_t size,
size = hpp.size = bfsz;
if (symbol_conf.report_hierarchy) {
- int nr_sort = hists->hpp_list->nr_sort_keys;
+ int nr_sort = hists->nr_sort_keys;
return hist_entry__hierarchy_fprintf(he, &hpp, nr_sort,
hists, fp);
@@ -529,7 +529,7 @@ static int print_hierarchy_header(struct hists *hists, struct perf_hpp *hpp,
unsigned header_width = 0;
struct perf_hpp_fmt *fmt;
- nr_sort = hists->hpp_list->nr_sort_keys;
+ nr_sort = hists->nr_sort_keys;
/* preserve max indent depth for column headers */
print_hierarchy_indent(sep, nr_sort, spaces, fp);
@@ -728,7 +728,7 @@ print_entries:
* display "no entry >= x.xx%" message.
*/
if (!h->leaf && !hist_entry__has_hierarchy_children(h, min_pcnt)) {
- int nr_sort = hists->hpp_list->nr_sort_keys;
+ int nr_sort = hists->nr_sort_keys;
print_hierarchy_indent(sep, nr_sort + h->depth + 1, spaces, fp);
fprintf(fp, "%*sno entry >= %.2f%%\n", indent, "", min_pcnt);
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index da3e7b6e4615..da5e50586bfd 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -78,6 +78,7 @@ struct hists {
u16 col_len[HISTC_NR_COLS];
int socket_filter;
struct perf_hpp_list *hpp_list;
+ int nr_sort_keys;
};
struct hist_entry_iter;
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 6bee8bdfb91b..2beb7a6360a4 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -2633,6 +2633,9 @@ out:
int setup_sorting(struct perf_evlist *evlist)
{
int err;
+ struct hists *hists;
+ struct perf_evsel *evsel;
+ struct perf_hpp_fmt *fmt;
err = __setup_sorting(evlist);
if (err < 0)
@@ -2644,6 +2647,22 @@ int setup_sorting(struct perf_evlist *evlist)
return err;
}
+ evlist__for_each(evlist, evsel) {
+ hists = evsel__hists(evsel);
+ hists->nr_sort_keys = perf_hpp_list.nr_sort_keys;
+
+ /*
+ * If dynamic entries were used, it might add multiple
+ * entries to each evsel for a single field name. Set
+ * actual number of sort keys for each hists.
+ */
+ perf_hpp_list__for_each_sort_list(&perf_hpp_list, fmt) {
+ if (perf_hpp__is_dynamic_entry(fmt) &&
+ !perf_hpp__defined_dynamic_entry(fmt, hists))
+ hists->nr_sort_keys--;
+ }
+ }
+
reset_dimensions();
/*
--
2.5.0
next prev parent reply other threads:[~2016-02-26 23:19 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-26 23:18 [GIT PULL 00/19] perf/core improvements and fixes Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 01/19] perf tools: Use asprintf() for simple string formatting/allocation Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 02/19] perf jvmti: improve error message in Makefile Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 03/19] perf tools: Fix parsing of pmu events with empty list of modifiers Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 04/19] perf script: Exception handling when the print fmt is empty Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 05/19] perf script: Remove duplicated code and needless script_spec__findnew() Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 06/19] perf hists: Add more helper functions for the hierarchy mode Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 07/19] perf report: Show message for percent limit on stdio Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 08/19] perf hists browser: Cleanup hist_browser__update_percent_limit() Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 09/19] perf hists browser: Show message for percent limit Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 10/19] perf report: Show message for percent limit on gtk Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 11/19] perf hists: Fix comparing of dynamic entries Arnaldo Carvalho de Melo
2016-02-26 23:18 ` Arnaldo Carvalho de Melo [this message]
2016-02-26 23:18 ` [PATCH 13/19] perf report: Left align dynamic entries in hierarchy Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 14/19] perf hists: Fix dynamic entry display " Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 15/19] perf report: Update column width of dynamic entries Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 16/19] perf config: Bring perf_default_config to the very beginning at main() Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 17/19] perf tools: Only set filter for tracepoints events Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 18/19] perf trace: Call bpf__apply_obj_config in 'perf trace' Arnaldo Carvalho de Melo
2016-02-26 23:18 ` [PATCH 19/19] perf trace: Print content of bpf-output event Arnaldo Carvalho de Melo
2016-02-27 9:36 ` [GIT PULL 00/19] perf/core improvements and fixes Ingo Molnar
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