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Subject[PATCH] perf tools: Add a dso_size option to perf report --sort
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

Cc: Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>
Signed-off-by: Kim Phillips <kim.phillips@arm.com>
---
tools/perf/Documentation/perf-report.txt | 1 +
tools/perf/util/hist.h | 1 +
tools/perf/util/map.h | 4 ++++
tools/perf/util/sort.c | 41 ++++++++++++++++++++++++++++++++
tools/perf/util/sort.h | 1 +
5 files changed, 48 insertions(+)

diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index e1a660e60849..917e36fde6d8 100644
--- 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 e869cad4d89f..32fbf26e0c18 100644
--- 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 edeb7291c8e1..0e9bbe01b0ab 100644
--- 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 e8514f651865..26a68dfd8a4f 100644
--- 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 f5901c10a563..035b62e2c60b 100644
--- 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 */
--
2.16.2
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