[PATCH RFC 02/10] perf,tools: Support new sort type --socket
From: kan . liang
Date: Tue Aug 18 2015 - 12:43:25 EST
From: Kan Liang <kan.liang@xxxxxxxxx>
This patch enable perf report to sort by socket
$ perf report --stdio --sort socket,comm,dso,symbol
# To display the perf.data header info, please use
--header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 686 of event 'cycles'
# Event count (approx.): 349215462
#
# Overhead SOCKET Command Shared Object Symbol
# ........ ...... ......... ................
.................................
#
97.05% 000 test test [.] plusB_c
0.98% 000 test test [.] plusA_c
0.93% 001 perf [kernel.vmlinux] [k]
smp_call_function_single
0.19% 001 perf [kernel.vmlinux] [k] page_fault
0.19% 001 swapper [kernel.vmlinux] [k] pm_qos_request
0.16% 000 test [kernel.vmlinux] [k] add_mm_counter_fast
Signed-off-by: Kan Liang <kan.liang@xxxxxxxxx>
---
tools/perf/Documentation/perf-report.txt | 3 ++-
tools/perf/util/cpumap.c | 21 ++++++++++++++-------
tools/perf/util/cpumap.h | 1 +
tools/perf/util/hist.h | 1 +
tools/perf/util/sort.c | 28 ++++++++++++++++++++++++++++
tools/perf/util/sort.h | 1 +
6 files changed, 47 insertions(+), 8 deletions(-)
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index a18ba75..ca76b0d 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -68,7 +68,7 @@ OPTIONS
--sort=::
Sort histogram entries by given key(s) - multiple keys can be specified
in CSV format. Following sort keys are available:
- pid, comm, dso, symbol, parent, cpu, srcline, weight, local_weight.
+ pid, comm, dso, symbol, parent, cpu, socket, srcline, weight, local_weight.
Each key has following meaning:
@@ -79,6 +79,7 @@ OPTIONS
- parent: name of function matched to the parent regex filter. Unmatched
entries are displayed as "[other]".
- cpu: cpu number the task ran at the time of sample
+ - socket: socket number the task ran at the time of sample
- srcline: filename and line number executed at the time of sample. The
DWARF debugging info must be provided.
- srcfile: file name of the source file of the same. Requires dwarf
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index 3667e21..7f25e6c 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -225,17 +225,12 @@ void cpu_map__put(struct cpu_map *map)
cpu_map__delete(map);
}
-int cpu_map__get_socket(struct cpu_map *map, int idx)
+int cpu__get_socket(int cpu)
{
FILE *fp;
const char *mnt;
char path[PATH_MAX];
- int cpu, ret;
-
- if (idx > map->nr)
- return -1;
-
- cpu = map->map[idx];
+ int ret;
mnt = sysfs__mountpoint();
if (!mnt)
@@ -253,6 +248,18 @@ int cpu_map__get_socket(struct cpu_map *map, int idx)
return ret == 1 ? cpu : -1;
}
+int cpu_map__get_socket(struct cpu_map *map, int idx)
+{
+ int cpu;
+
+ if (idx > map->nr)
+ return -1;
+
+ cpu = map->map[idx];
+
+ return cpu__get_socket(cpu);
+}
+
static int cmp_ids(const void *a, const void *b)
{
return *(int *)a - *(int *)b;
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index 0af9cec..effb56e 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -18,6 +18,7 @@ struct cpu_map *cpu_map__new(const char *cpu_list);
struct cpu_map *cpu_map__dummy_new(void);
struct cpu_map *cpu_map__read(FILE *file);
size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp);
+int cpu__get_socket(int cpu);
int cpu_map__get_socket(struct cpu_map *map, int idx);
int cpu_map__get_core(struct cpu_map *map, int idx);
int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp);
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index bc528d5..af80fb5 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -29,6 +29,7 @@ enum hist_column {
HISTC_COMM,
HISTC_PARENT,
HISTC_CPU,
+ HISTC_SOCKET,
HISTC_SRCLINE,
HISTC_SRCFILE,
HISTC_MISPREDICT,
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 7e38716..245e254 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -421,6 +421,33 @@ struct sort_entry sort_cpu = {
.se_width_idx = HISTC_CPU,
};
+/* --sort socket */
+
+static int64_t
+sort__socket_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ int r_socket, l_socket;
+
+ r_socket = cpu__get_socket(right->cpu);
+ l_socket = cpu__get_socket(left->cpu);
+ return r_socket - l_socket;
+}
+
+static int hist_entry__socket_snprintf(struct hist_entry *he, char *bf,
+ size_t size, unsigned int width)
+{
+ int socket = cpu__get_socket(he->cpu);
+
+ return repsep_snprintf(bf, size, "%*.*d", width, width-3, socket);
+}
+
+struct sort_entry sort_socket = {
+ .se_header = "SOCKET",
+ .se_cmp = sort__socket_cmp,
+ .se_snprintf = hist_entry__socket_snprintf,
+ .se_width_idx = HISTC_SOCKET,
+};
+
/* sort keys for branch stacks */
static int64_t
@@ -1248,6 +1275,7 @@ static struct sort_dimension common_sort_dimensions[] = {
DIM(SORT_SYM, "symbol", sort_sym),
DIM(SORT_PARENT, "parent", sort_parent),
DIM(SORT_CPU, "cpu", sort_cpu),
+ DIM(SORT_SOCKET, "socket", sort_socket),
DIM(SORT_SRCLINE, "srcline", sort_srcline),
DIM(SORT_SRCFILE, "srcfile", sort_srcfile),
DIM(SORT_LOCAL_WEIGHT, "local_weight", sort_local_weight),
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 3c2a399..9d86a1f 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -172,6 +172,7 @@ enum sort_type {
SORT_SYM,
SORT_PARENT,
SORT_CPU,
+ SORT_SOCKET,
SORT_SRCLINE,
SORT_SRCFILE,
SORT_LOCAL_WEIGHT,
--
1.8.3.1
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