mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 04:34:11 +08:00
720e98b5fa
Storing CPU cache details under perf data. It's stored as new HEADER_CACHE feature and it's displayed under header info with -I option: $ perf report --header-only -I ... # CPU cache info: # L1 Data 32K [0-1] # L1 Instruction 32K [0-1] # L1 Data 32K [2-3] # L1 Instruction 32K [2-3] # L2 Unified 256K [0-1] # L2 Unified 256K [2-3] # L3 Unified 4096K [0-3] ... All distinct caches are stored/displayed. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20160216150143.GA7119@krava.brq.redhat.com [ Fixed leak on process_caches(), s/cache_level/cpu_cache_level/g ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
91 lines
1.8 KiB
C
91 lines
1.8 KiB
C
#include "cpumap.h"
|
|
#include "env.h"
|
|
#include "util.h"
|
|
|
|
struct perf_env perf_env;
|
|
|
|
void perf_env__exit(struct perf_env *env)
|
|
{
|
|
int i;
|
|
|
|
zfree(&env->hostname);
|
|
zfree(&env->os_release);
|
|
zfree(&env->version);
|
|
zfree(&env->arch);
|
|
zfree(&env->cpu_desc);
|
|
zfree(&env->cpuid);
|
|
zfree(&env->cmdline);
|
|
zfree(&env->cmdline_argv);
|
|
zfree(&env->sibling_cores);
|
|
zfree(&env->sibling_threads);
|
|
zfree(&env->numa_nodes);
|
|
zfree(&env->pmu_mappings);
|
|
zfree(&env->cpu);
|
|
|
|
for (i = 0; i < env->caches_cnt; i++)
|
|
cpu_cache_level__free(&env->caches[i]);
|
|
zfree(&env->caches);
|
|
}
|
|
|
|
int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[])
|
|
{
|
|
int i;
|
|
|
|
/* do not include NULL termination */
|
|
env->cmdline_argv = calloc(argc, sizeof(char *));
|
|
if (env->cmdline_argv == NULL)
|
|
goto out_enomem;
|
|
|
|
/*
|
|
* Must copy argv contents because it gets moved around during option
|
|
* parsing:
|
|
*/
|
|
for (i = 0; i < argc ; i++) {
|
|
env->cmdline_argv[i] = argv[i];
|
|
if (env->cmdline_argv[i] == NULL)
|
|
goto out_free;
|
|
}
|
|
|
|
env->nr_cmdline = argc;
|
|
|
|
return 0;
|
|
out_free:
|
|
zfree(&env->cmdline_argv);
|
|
out_enomem:
|
|
return -ENOMEM;
|
|
}
|
|
|
|
int perf_env__read_cpu_topology_map(struct perf_env *env)
|
|
{
|
|
int cpu, nr_cpus;
|
|
|
|
if (env->cpu != NULL)
|
|
return 0;
|
|
|
|
if (env->nr_cpus_avail == 0)
|
|
env->nr_cpus_avail = sysconf(_SC_NPROCESSORS_CONF);
|
|
|
|
nr_cpus = env->nr_cpus_avail;
|
|
if (nr_cpus == -1)
|
|
return -EINVAL;
|
|
|
|
env->cpu = calloc(nr_cpus, sizeof(env->cpu[0]));
|
|
if (env->cpu == NULL)
|
|
return -ENOMEM;
|
|
|
|
for (cpu = 0; cpu < nr_cpus; ++cpu) {
|
|
env->cpu[cpu].core_id = cpu_map__get_core_id(cpu);
|
|
env->cpu[cpu].socket_id = cpu_map__get_socket_id(cpu);
|
|
}
|
|
|
|
env->nr_cpus_avail = nr_cpus;
|
|
return 0;
|
|
}
|
|
|
|
void cpu_cache_level__free(struct cpu_cache_level *cache)
|
|
{
|
|
free(cache->type);
|
|
free(cache->map);
|
|
free(cache->size);
|
|
}
|