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e2091cedd5
Adding MEM_TOPOLOGY feature to perf data file,
that will carry physical memory map and its
node assignments.
The format of data in MEM_TOPOLOGY is as follows:
0 - version | for future changes
8 - block_size_bytes | /sys/devices/system/memory/block_size_bytes
16 - count | number of nodes
For each node we store map of physical indexes for
each node:
32 - node id | node index
40 - size | size of bitmap
48 - bitmap | bitmap of memory indexes that belongs to node
| /sys/devices/system/node/node<NODE>/memory<INDEX>
The MEM_TOPOLOGY could be displayed with following
report command:
$ perf report --header-only -I
...
# memory nodes (nr 1, block size 0x8000000):
# 0 [7G]: 0-23,32-69
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180307155020.32613-8-jolsa@kernel.org
[ Rename 'index' to 'idx', as this breaks the build in rhel5, 6 and other systems where this is used by glibc headers ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
80 lines
1.5 KiB
C
80 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_ENV_H
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#define __PERF_ENV_H
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#include <linux/types.h>
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#include "cpumap.h"
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struct cpu_topology_map {
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int socket_id;
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int core_id;
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};
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struct cpu_cache_level {
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u32 level;
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u32 line_size;
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u32 sets;
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u32 ways;
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char *type;
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char *size;
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char *map;
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};
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struct numa_node {
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u32 node;
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u64 mem_total;
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u64 mem_free;
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struct cpu_map *map;
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};
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struct memory_node {
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u64 node;
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u64 size;
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unsigned long *set;
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};
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struct perf_env {
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char *hostname;
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char *os_release;
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char *version;
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char *arch;
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int nr_cpus_online;
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int nr_cpus_avail;
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char *cpu_desc;
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char *cpuid;
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unsigned long long total_mem;
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unsigned int msr_pmu_type;
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int nr_cmdline;
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int nr_sibling_cores;
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int nr_sibling_threads;
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int nr_numa_nodes;
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int nr_memory_nodes;
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int nr_pmu_mappings;
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int nr_groups;
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char *cmdline;
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const char **cmdline_argv;
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char *sibling_cores;
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char *sibling_threads;
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char *pmu_mappings;
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struct cpu_topology_map *cpu;
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struct cpu_cache_level *caches;
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int caches_cnt;
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struct numa_node *numa_nodes;
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struct memory_node *memory_nodes;
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unsigned long long memory_bsize;
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};
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extern struct perf_env perf_env;
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void perf_env__exit(struct perf_env *env);
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int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]);
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int perf_env__read_cpu_topology_map(struct perf_env *env);
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void cpu_cache_level__free(struct cpu_cache_level *cache);
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const char *perf_env__arch(struct perf_env *env);
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#endif /* __PERF_ENV_H */
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