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authorArnaldo Carvalho de Melo <acme@redhat.com>2009-12-16 14:09:53 -0200
committerIngo Molnar <mingo@elte.hu>2009-12-16 18:13:40 +0100
commit604c5c92972dcb4b98be34775452d09a5d4ec248 (patch)
tree3f4ef659340f70780d41d3850fc5f9de13fc8719 /tools
parentc351c2816177eb7d2979ec874b9b895abe9d6e5c (diff)
downloadlinux-604c5c92972dcb4b98be34775452d09a5d4ec248.tar.gz
perf diff: Change the default sort order to "dso,symbol"
This is a more intuitive / more meaningful default:

$ perf diff | head -8
     9.02%     +1.00%  libc-2.10.1.so               [.] _IO_vfprintf_internal
     2.91%     -1.00%  [kernel]                     [k] __kmalloc
     2.85%     -1.00%  [kernel]                     [k] ext4_htree_store_dirent
     1.99%     -1.00%  [kernel]                     [k] _atomic_dec_and_lock
     2.44%             [kernel]
$

Suggested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1260979793-1981-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/builtin-diff.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 66f100d249a8..4d33b55d5584 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -18,6 +18,7 @@
 
 static char const *input_old = "perf.data.old",
 		  *input_new = "perf.data";
+static char	  diff__default_sort_order[] = "dso,symbol";
 static int  force;
 static bool show_displacement;
 
@@ -220,6 +221,7 @@ static const struct option options[] = {
 
 int cmd_diff(int argc, const char **argv, const char *prefix __used)
 {
+	sort_order = diff__default_sort_order;
 	argc = parse_options(argc, argv, options, diff_usage, 0);
 	if (argc) {
 		if (argc > 2)