diff options
| author | Joshua Zhu <zhu.wen-jie@hp.com> | 2013-01-05 13:29:57 +0800 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2013-09-10 01:57:05 +0100 |
| commit | 6fb06654d8b1b3e64a28765c103846852e475e9b (patch) | |
| tree | 944acaf4b7a755d0bfb77205484b3df3375aaf9b | |
| parent | 6c660b2a49d3ac2f09b75002aff43077b7ef9de6 (diff) | |
| download | lwn-6fb06654d8b1b3e64a28765c103846852e475e9b.tar.gz lwn-6fb06654d8b1b3e64a28765c103846852e475e9b.zip | |
perf tools: Add anonymous huge page recognition
commit d0528b5d71faf612014dd7672e44225c915344b2 upstream.
Judging anonymous memory's vm_area_struct, perf_mmap_event's filename
will be set to "//anon" indicating this vma belongs to anonymous
memory.
Once hugepage is used, vma's vm_file points to hugetlbfs. In this way,
this vma will not be regarded as anonymous memory by is_anon_memory() in
perf user space utility.
Signed-off-by: Joshua Zhu <zhu.wen-jie@hp.com>
Cc: Akihiro Nagai <akihiro.nagai.hw@hitachi.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joshua Zhu <zhu.wen-jie@hp.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1357363797-3550-1-git-send-email-zhu.wen-jie@hp.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | tools/perf/util/map.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index 78284b13e808..42dffa07f819 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -15,7 +15,8 @@ const char *map_type__name[MAP__NR_TYPES] = { static inline int is_anon_memory(const char *filename) { - return strcmp(filename, "//anon") == 0; + return !strcmp(filename, "//anon") || + !strcmp(filename, "/anon_hugepage (deleted)"); } static inline int is_no_dso_memory(const char *filename) |