perf tools: Add a "dso_size" sort order

Add DSO size to perf report/top sort output list.

This includes adding a map__size fn to map.h, which is
approximately equal to the DSO data file_size:

  DSO				file size	map (end-start)	file / (end-start)
  libwebkit2gtk-4.0.so.37.24.9	43260072	41295872	95%
  libglib-2.0.so.0.5400.1		 1125680	 1118208	99%
  libc-2.26.so			 1960656 	 1925120	101%
  libdbus-1.so.3.14.13		  309456 	  303104	102%

Sample output:

  $ ./perf report -s dso_size,dso
  Samples: 2K of event 'cycles:uppp', Event count (approx.): 128373340
  Overhead  DSO size  Shared Object
    90.62%   unknown  [unknown]
     2.87%   1118208  libglib-2.0.so.0.5400.1
     1.92%    303104  libdbus-1.so.3.14.13
     1.42%   1925120  libc-2.26.so
     0.77%  41295872  libwebkit2gtk-4.0.so.37.24.9
     0.61%    335872  libgobject-2.0.so.0.5400.1
     0.41%   1052672  libgdk-3.so.0.2200.25
     0.36%    106496  libpthread-2.26.so
     0.29%    221184  dbus-daemon
     0.17%    159744  ld-2.26.so
     0.13%     49152  libwayland-client.so.0.3.0
     0.12%   1642496  libgio-2.0.so.0.5400.1
     0.09%   7327744  libgtk-3.so.0.2200.25
     0.09%  12324864  libmozjs-52.so.0.0.0
     0.05%   4796416  perf
     0.04%    843776  libgjs.so.0.0.0
     0.03%   1409024  libmutter-clutter-1.so

Committer testing:

To sort by DSO size, use:

  # perf report -F dso_size,dso,overhead -s dso_size
  <SNIP>
     3465216  libdns-export.so.174.0.1   0.00%
     3522560  libgc.so.1.0.3             0.00%
     3538944  libbfd-2.29-13.fc27.so     0.59%
     3670016  libunistring.so.2.1.0      0.00%
     3723264  libguile-2.0.so.22.8.1     0.00%
     3776512  libgio-2.0.so.0.5400.3     0.00%
     3891200  libc-2.26.so               0.96%
     3944448  libmozjs-17.0.so           0.00%
     4218880  libperl.so.5.26.1          0.18%
     4452352  libpython2.7.so.1.0        0.02%
     4472832  perf                       0.02%
     4603904  git                        0.01%
     4751360  libcrypto.so.1.1.0g        0.00%
     5005312  libslang.so.2.3.1          0.00%
     7315456  libgtk-3.so.0.2200.26      0.09%
     8818688  i965_dri.so                2.46%
     8818688  i965_dri.so (deleted)      1.26%
    12414976  libmozjs-52.so.0.0.0       0.03%
    23642112  cc1                        2.02%
    27889664  [kernel.kallsyms]         25.41%
    80834560  libxul.so (deleted)       15.68%
    98078720  chrome                    32.03%
  1056964608  [kernel.kallsyms]          1.59%
  #

Signed-off-by: Kim Phillips <kim.phillips@arm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180327060956.1c01ebe67a2a941bb4468c6f@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index e1a660e60849f33663afff25687855328eecc6fa..917e36fde6d8b5e30e2626a68ef4b01b2cae1929 100644 (file)
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -80,6 +80,7 @@ OPTIONS
        - comm: command (name) of the task which can be read via /proc/<pid>/comm
        - pid: command and tid of the task
        - dso: name of library or module executed at the time of sample
+       - dso_size: size of library or module executed at the time of sample
        - symbol: name of function executed at the time of sample
        - symbol_size: size of function executed at the time of sample
        - parent: name of function matched to the parent regex filter. Unmatched

diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index e869cad4d89f1b31fbed8f8359613b094c2382f4..32fbf26e0c18b67dda8ce541e18ab0bd2c9f198e 100644 (file)
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -61,6 +61,7 @@ enum hist_column {
        HISTC_SRCLINE_TO,
        HISTC_TRACE,
        HISTC_SYM_SIZE,
+       HISTC_DSO_SIZE,
        HISTC_NR_COLS, /* Last entry */
 };
 

diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index edeb7291c8e1ffdd0aedd2004957e72d4b2bf8ad..0e9bbe01b0abc934daec873254e06c3da36f4d8f 100644 (file)
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -103,6 +103,10 @@ static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip)
        return ip;
 }
 
+static inline size_t map__size(const struct map *map)
+{
+       return map->end - map->start;
+}
 
 /* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
 u64 map__rip_2objdump(struct map *map, u64 rip);

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index e8514f651865239578a622e8632d214b6ab6c3b2..26a68dfd8a4f54040bf0a2afc1bc873203a25bba 100644 (file)
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -1545,6 +1545,46 @@ struct sort_entry sort_sym_size = {
        .se_width_idx   = HISTC_SYM_SIZE,
 };
 
+/* --sort dso_size */
+
+static int64_t _sort__dso_size_cmp(struct map *map_l, struct map *map_r)
+{
+       int64_t size_l = map_l != NULL ? map__size(map_l) : 0;
+       int64_t size_r = map_r != NULL ? map__size(map_r) : 0;
+
+       return size_l < size_r ? -1 :
+               size_l == size_r ? 0 : 1;
+}
+
+static int64_t
+sort__dso_size_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+       return _sort__dso_size_cmp(right->ms.map, left->ms.map);
+}
+
+static int _hist_entry__dso_size_snprintf(struct map *map, char *bf,
+                                         size_t bf_size, unsigned int width)
+{
+       if (map && map->dso)
+               return repsep_snprintf(bf, bf_size, "%*d", width,
+                                      map__size(map));
+
+       return repsep_snprintf(bf, bf_size, "%*s", width, "unknown");
+}
+
+static int hist_entry__dso_size_snprintf(struct hist_entry *he, char *bf,
+                                        size_t size, unsigned int width)
+{
+       return _hist_entry__dso_size_snprintf(he->ms.map, bf, size, width);
+}
+
+struct sort_entry sort_dso_size = {
+       .se_header      = "DSO size",
+       .se_cmp         = sort__dso_size_cmp,
+       .se_snprintf    = hist_entry__dso_size_snprintf,
+       .se_width_idx   = HISTC_DSO_SIZE,
+};
+
 
 struct sort_dimension {
        const char              *name;
@@ -1569,6 +1609,7 @@ static struct sort_dimension common_sort_dimensions[] = {
        DIM(SORT_TRANSACTION, "transaction", sort_transaction),
        DIM(SORT_TRACE, "trace", sort_trace),
        DIM(SORT_SYM_SIZE, "symbol_size", sort_sym_size),
+       DIM(SORT_DSO_SIZE, "dso_size", sort_dso_size),
        DIM(SORT_CGROUP_ID, "cgroup_id", sort_cgroup_id),
 };
 

diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index f5901c10a563c3eb5ed88391709fa38356e0ae87..035b62e2c60b930f27b74f99fe8658a2d6ade3fe 100644 (file)
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -220,6 +220,7 @@ enum sort_type {
        SORT_TRANSACTION,
        SORT_TRACE,
        SORT_SYM_SIZE,
+       SORT_DSO_SIZE,
        SORT_CGROUP_ID,
 
        /* branch stack specific sort keys */