perf tools: Add numa_topology object

Add the numa_topology object to return the list of numa nodes together
with their cpus. It will replace the numa code in header.c and will be
used from 'perf record' in the following patches.

Add the following interface functions to load numa details:

  struct numa_topology *numa_topology__new(void);
  void numa_topology__delete(struct numa_topology *tp);

And replace the current (copied) local interface, with no functional
changes.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190219095815.15931-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2019-02-19 10:58:14 +01:00
committed by Arnaldo Carvalho de Melo
parent 5135d5efcb
commit 48e6c5acd3
3 changed files with 162 additions and 95 deletions

View File

@@ -3,6 +3,7 @@
#define __PERF_CPUTOPO_H
#include <linux/types.h>
#include "env.h"
struct cpu_topology {
u32 core_sib;
@@ -11,7 +12,22 @@ struct cpu_topology {
char **thread_siblings;
};
struct numa_topology_node {
char *cpus;
u32 node;
u64 mem_total;
u64 mem_free;
};
struct numa_topology {
u32 nr;
struct numa_topology_node nodes[0];
};
struct cpu_topology *cpu_topology__new(void);
void cpu_topology__delete(struct cpu_topology *tp);
struct numa_topology *numa_topology__new(void);
void numa_topology__delete(struct numa_topology *tp);
#endif /* __PERF_CPUTOPO_H */