diff options
| author | Zhang, Yanmin <yanmin_zhang@linux.intel.com> | 2010-04-19 13:32:50 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-04-19 12:37:24 +0300 |
| commit | a1645ce12adb6c9cc9e19d7695466204e3f017fe (patch) | |
| tree | 5d31aaaf534997e6e9cebc07f38eca35f76986cf /tools/perf/builtin-kmem.c | |
| parent | ff9d07a0e7ce756a183e7c2e483aec452ee6b574 (diff) | |
| download | linux-a1645ce12adb6c9cc9e19d7695466204e3f017fe.tar.gz | |
perf: 'perf kvm' tool for monitoring guest performance from host
Here is the patch of userspace perf tool. Signed-off-by: Zhang Yanmin <yanmin_zhang@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'tools/perf/builtin-kmem.c')
| -rw-r--r-- | tools/perf/builtin-kmem.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c index 513aa8a55db6..db474bbf3322 100644 --- a/tools/perf/builtin-kmem.c +++ b/tools/perf/builtin-kmem.c @@ -351,6 +351,7 @@ static void __print_result(struct rb_root *root, struct perf_session *session, int n_lines, int is_caller) { struct rb_node *next; + struct kernel_info *kerninfo; printf("%.102s\n", graph_dotted_line); printf(" %-34s |", is_caller ? "Callsite": "Alloc Ptr"); @@ -359,10 +360,16 @@ static void __print_result(struct rb_root *root, struct perf_session *session, next = rb_first(root); + kerninfo = kerninfo__findhost(&session->kerninfo_root); + if (!kerninfo) { + pr_err("__print_result: couldn't find kernel information\n"); + return; + } while (next && n_lines--) { struct alloc_stat *data = rb_entry(next, struct alloc_stat, node); struct symbol *sym = NULL; + struct map_groups *kmaps = &kerninfo->kmaps; struct map *map; char buf[BUFSIZ]; u64 addr; @@ -370,8 +377,8 @@ static void __print_result(struct rb_root *root, struct perf_session *session, if (is_caller) { addr = data->call_site; if (!raw_ip) - sym = map_groups__find_function(&session->kmaps, - addr, &map, NULL); + sym = map_groups__find_function(kmaps, addr, + &map, NULL); } else addr = data->ptr; |