perf kmem: Print big numbers using thousands' group
Like perf stat, this makes easy to read the numbers on stat like below:
# perf kmem stat
SUMMARY
=======
Total bytes requested: 9,770,900
Total bytes allocated: 9,782,712
Total bytes wasted on internal fragmentation: 11,812
Internal fragmentation: 0.120744%
Cross CPU allocations: 74/152,819
Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1427092244-22764-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 8c85aeb..64d3623 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -20,6 +20,7 @@
#include <linux/rbtree.h>
#include <linux/string.h>
+#include <locale.h>
struct alloc_stat;
typedef int (*sort_fn_t)(struct alloc_stat *, struct alloc_stat *);
@@ -325,13 +326,13 @@
static void print_summary(void)
{
printf("\nSUMMARY\n=======\n");
- printf("Total bytes requested: %lu\n", total_requested);
- printf("Total bytes allocated: %lu\n", total_allocated);
- printf("Total bytes wasted on internal fragmentation: %lu\n",
+ printf("Total bytes requested: %'lu\n", total_requested);
+ printf("Total bytes allocated: %'lu\n", total_allocated);
+ printf("Total bytes wasted on internal fragmentation: %'lu\n",
total_allocated - total_requested);
printf("Internal fragmentation: %f%%\n",
fragmentation(total_requested, total_allocated));
- printf("Cross CPU allocations: %lu/%lu\n", nr_cross_allocs, nr_allocs);
+ printf("Cross CPU allocations: %'lu/%'lu\n", nr_cross_allocs, nr_allocs);
}
static void print_result(struct perf_session *session)
@@ -706,6 +707,8 @@
symbol__init(&session->header.env);
if (!strcmp(argv[0], "stat")) {
+ setlocale(LC_ALL, "");
+
if (cpu__setup_cpunode_map())
goto out_delete;