lkml.org 
[lkml]   [2020]   [Nov]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 12/13 v4] perf tools: Add separate core member
Date
Add core as a separate member so that it doesn't have to be
packed into the int value.

Signed-off-by: James Clark <james.clark@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: John Garry <john.garry@huawei.com>
---
tools/perf/builtin-stat.c | 9 +++------
tools/perf/tests/topology.c | 3 ++-
tools/perf/util/cpumap.c | 18 ++++++++++--------
tools/perf/util/cpumap.h | 6 +-----
tools/perf/util/stat-display.c | 16 ++++++++--------
5 files changed, 24 insertions(+), 28 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 514144dad8b1..d79a29e22dfd 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1404,15 +1404,12 @@ static struct aggr_cpu_id perf_env__get_core(struct perf_cpu_map *map, int idx,
if (cpu != -1) {
/*
* core_id is relative to socket and die,
- * we need a global id. So we combine
- * socket + die id + core id
+ * we need a global id. So we set
+ * socket, die id and core id
*/
- if (WARN_ONCE(env->cpu[cpu].core_id >> 16, "The core id number is too big.\n"))
- return cpu_map__empty_aggr_cpu_id();
-
id.socket = env->cpu[cpu].socket_id;
id.die = env->cpu[cpu].die_id;
- id.id = env->cpu[cpu].core_id & 0xffff;
+ id.core = env->cpu[cpu].core_id;
}

return id;
diff --git a/tools/perf/tests/topology.c b/tools/perf/tests/topology.c
index 1256cf63d4d0..694f786a77f3 100644
--- a/tools/perf/tests/topology.c
+++ b/tools/perf/tests/topology.c
@@ -111,7 +111,7 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
for (i = 0; i < map->nr; i++) {
id = cpu_map__get_core(map, i, NULL);
TEST_ASSERT_VAL("Core map - Core ID doesn't match",
- session->header.env.cpu[map->map[i]].core_id == cpu_map__id_to_cpu(id.id));
+ session->header.env.cpu[map->map[i]].core_id == id.core);

TEST_ASSERT_VAL("Core map - Socket ID doesn't match",
session->header.env.cpu[map->map[i]].socket_id == id.socket);
@@ -119,6 +119,7 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
TEST_ASSERT_VAL("Core map - Die ID doesn't match",
session->header.env.cpu[map->map[i]].die_id == id.die);
TEST_ASSERT_VAL("Core map - Node ID is set", id.node == -1);
+ TEST_ASSERT_VAL("Core map - ID is set", id.id == -1);
}

// Test that die ID contains socket and die
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index c1d3539222f2..d988dfc4e6b6 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -154,8 +154,10 @@ static int cmp_aggr_cpu_id(const void *a_pointer, const void *b_pointer)
return a->node - b->node;
else if (a->socket != b->socket)
return a->socket - b->socket;
- else
+ else if (a->die != b->die)
return a->die - b->die;
+ else
+ return a->core - b->core;
}

int cpu_map__build_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **res,
@@ -259,10 +261,7 @@ struct aggr_cpu_id cpu_map__get_core(struct perf_cpu_map *map, int idx, void *da
* core_id is relative to socket and die, we need a global id.
* So we combine the result from cpu_map__get_die with the core id
*/
- if (WARN_ONCE(cpu >> 16, "The core id number is too big.\n"))
- return cpu_map__empty_aggr_cpu_id();
-
- id.id = (cpu & 0xffff);
+ id.core = cpu;
return id;
}

@@ -621,7 +620,8 @@ bool cpu_map__compare_aggr_cpu_id(struct aggr_cpu_id a, struct aggr_cpu_id b)
return a.id == b.id &&
a.node == b.node &&
a.socket == b.socket &&
- a.die == b.die;
+ a.die == b.die &&
+ a.core == b.core;
}

bool cpu_map__aggr_cpu_id_is_empty(struct aggr_cpu_id a)
@@ -629,7 +629,8 @@ bool cpu_map__aggr_cpu_id_is_empty(struct aggr_cpu_id a)
return a.id == -1 &&
a.node == -1 &&
a.socket == -1 &&
- a.die == -1;
+ a.die == -1 &&
+ a.core == -1;
}

struct aggr_cpu_id cpu_map__empty_aggr_cpu_id(void)
@@ -638,7 +639,8 @@ struct aggr_cpu_id cpu_map__empty_aggr_cpu_id(void)
.id = -1,
.node = -1,
.socket = -1,
- .die = -1
+ .die = -1,
+ .core = -1
};
return ret;
}
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index 51bbe1eca3f4..1bb8f7d47206 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -12,6 +12,7 @@ struct aggr_cpu_id {
int node;
int socket;
int die;
+ int core;
};

struct cpu_aggr_map {
@@ -50,11 +51,6 @@ static inline int cpu_map__socket(struct perf_cpu_map *sock, int s)
return sock->map[s];
}

-static inline int cpu_map__id_to_cpu(int id)
-{
- return id & 0xffff;
-}
-
int cpu__setup_cpunode_map(void);

int cpu__max_node(void);
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index bbd6c95104c7..6fb70a45afe3 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -76,7 +76,7 @@ static void aggr_printout(struct perf_stat_config *config,
id.socket,
id.die,
config->csv_output ? 0 : -8,
- cpu_map__id_to_cpu(id.id),
+ id.core,
config->csv_sep,
config->csv_output ? 0 : 4,
nr,
@@ -116,11 +116,11 @@ static void aggr_printout(struct perf_stat_config *config,
id.socket,
id.die,
config->csv_output ? 0 : -3,
- cpu_map__id_to_cpu(id.id), config->csv_sep);
- } else if (id.id > -1) {
+ id.core, config->csv_sep);
+ } else if (id.core > -1) {
fprintf(config->output, "CPU%*d%s",
config->csv_output ? 0 : -7,
- evsel__cpus(evsel)->map[id.id],
+ evsel__cpus(evsel)->map[id.core],
config->csv_sep);
}
break;
@@ -329,7 +329,7 @@ static int first_shadow_cpu(struct perf_stat_config *config,
return 0;

if (config->aggr_mode == AGGR_NONE)
- return id.id;
+ return id.core;

if (config->aggr_mode == AGGR_GLOBAL)
return 0;
@@ -661,7 +661,7 @@ static void print_counter_aggrdata(struct perf_stat_config *config,
uval = val * counter->scale;
if (cpu != -1) {
id = cpu_map__empty_aggr_cpu_id();
- id.id = cpu;
+ id.core = cpu;
}
printout(config, id, nr, counter, uval,
prefix, run, ena, 1.0, &rt_stat);
@@ -872,7 +872,7 @@ static void print_counter(struct perf_stat_config *config,

uval = val * counter->scale;
id = cpu_map__empty_aggr_cpu_id();
- id.id = cpu;
+ id.core = cpu;
printout(config, id, 0, counter, uval, prefix,
run, ena, 1.0, &rt_stat);

@@ -899,7 +899,7 @@ static void print_no_aggr_metric(struct perf_stat_config *config,
fputs(prefix, config->output);
evlist__for_each_entry(evlist, counter) {
id = cpu_map__empty_aggr_cpu_id();
- id.id = cpu;
+ id.core = cpu;
if (first) {
aggr_printout(config, counter, id, 0);
first = false;
--
2.28.0
\
 
 \ /
  Last update: 2020-11-13 18:28    [W:0.119 / U:1.988 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site