by tip-bot for Vasyl Gomonovych

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Subject: [tip:perf/core] perf ui/gtk: Support flat callchains

Commit-ID: 3cd99dfd1c87067fb28a19fee76500aed56d7c8f
Gitweb: http://git.kernel.org/tip/3cd99dfd1c87067fb28a19fee76500aed56d7c8f
Author: Namhyung Kim <[email protected]>
AuthorDate: Mon, 9 Nov 2015 14:45:45 +0900
Committer: Arnaldo Carvalho de Melo <[email protected]>
CommitDate: Thu, 19 Nov 2015 13:19:25 -0300

perf ui/gtk: Support flat callchains

The flat callchain mode is to print all chains in a simple flat
hierarchy so make it easy to see.

Currently perf report --gtk doesn't show flat callchains properly. With
flat callchains, only leaf nodes are added to the final rbtree so it
should show entries in parent nodes. To do that, add parent_val list to
struct callchain_node and show them along with the (normal) val list.

See the previous commit on TUI support for more information.

Signed-off-by: Namhyung Kim <[email protected]>
Tested-by: Brendan Gregg <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Pekka Enberg <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
tools/perf/ui/gtk/hists.c | 80 ++++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 76 insertions(+), 4 deletions(-)

diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index cff7bb9..0b24cd6 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -89,8 +89,71 @@ void perf_gtk__init_hpp(void)
perf_gtk__hpp_color_overhead_acc;
}

-static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
- GtkTreeIter *parent, int col, u64 total)
+static void perf_gtk__add_callchain_flat(struct rb_root *root, GtkTreeStore *store,
+ GtkTreeIter *parent, int col, u64 total)
+{
+ struct rb_node *nd;
+ bool has_single_node = (rb_first(root) == rb_last(root));
+
+ for (nd = rb_first(root); nd; nd = rb_next(nd)) {
+ struct callchain_node *node;
+ struct callchain_list *chain;
+ GtkTreeIter iter, new_parent;
+ bool need_new_parent;
+
+ node = rb_entry(nd, struct callchain_node, rb_node);
+
+ new_parent = *parent;
+ need_new_parent = !has_single_node;
+
+ callchain_node__make_parent_list(node);
+
+ list_for_each_entry(chain, &node->parent_val, list) {
+ char buf[128];
+
+ gtk_tree_store_append(store, &iter, &new_parent);
+
+ callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
+ gtk_tree_store_set(store, &iter, 0, buf, -1);
+
+ callchain_list__sym_name(chain, buf, sizeof(buf), false);
+ gtk_tree_store_set(store, &iter, col, buf, -1);
+
+ if (need_new_parent) {
+ /*
+ * Only show the top-most symbol in a callchain
+ * if it's not the only callchain.
+ */
+ new_parent = iter;
+ need_new_parent = false;
+ }
+ }
+
+ list_for_each_entry(chain, &node->val, list) {
+ char buf[128];
+
+ gtk_tree_store_append(store, &iter, &new_parent);
+
+ callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
+ gtk_tree_store_set(store, &iter, 0, buf, -1);
+
+ callchain_list__sym_name(chain, buf, sizeof(buf), false);
+ gtk_tree_store_set(store, &iter, col, buf, -1);
+
+ if (need_new_parent) {
+ /*
+ * Only show the top-most symbol in a callchain
+ * if it's not the only callchain.
+ */
+ new_parent = iter;
+ need_new_parent = false;
+ }
+ }
+ }
+}
+
+static void perf_gtk__add_callchain_graph(struct rb_root *root, GtkTreeStore *store,
+ GtkTreeIter *parent, int col, u64 total)
{
struct rb_node *nd;
bool has_single_node = (rb_first(root) == rb_last(root));
@@ -134,11 +197,20 @@ static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
child_total = total;

/* Now 'iter' contains info of the last callchain_list */
- perf_gtk__add_callchain(&node->rb_root, store, &iter, col,
- child_total);
+ perf_gtk__add_callchain_graph(&node->rb_root, store, &iter, col,
+ child_total);
}
}

+static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
+ GtkTreeIter *parent, int col, u64 total)
+{
+ if (callchain_param.mode == CHAIN_FLAT)
+ perf_gtk__add_callchain_flat(root, store, parent, col, total);
+ else
+ perf_gtk__add_callchain_graph(root, store, parent, col, total);
+}
+
static void on_row_activated(GtkTreeView *view, GtkTreePath *path,
GtkTreeViewColumn *col __maybe_unused,
gpointer user_data __maybe_unused)

2015-11-23 16:16:24

by tip-bot for Vasyl Gomonovych

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Subject: [tip:perf/core] perf ui/gtk: Support folded callchains

Commit-ID: 2c6caff2b26fde8f3f87183f8c97f2cebfdbcb98
Gitweb: http://git.kernel.org/tip/2c6caff2b26fde8f3f87183f8c97f2cebfdbcb98
Author: Namhyung Kim <[email protected]>
AuthorDate: Mon, 9 Nov 2015 14:45:46 +0900
Committer: Arnaldo Carvalho de Melo <[email protected]>
CommitDate: Thu, 19 Nov 2015 13:19:26 -0300

perf ui/gtk: Support folded callchains

The folded callchain mode is to print all chains in a single line.
Currently perf report --gtk doesn't support folded callchains. Like
flat callchains, only leaf nodes are added to the final rbtree so it
should show entries in parent nodes.

Signed-off-by: Namhyung Kim <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Tested-by: Brendan Gregg <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Pekka Enberg <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
tools/perf/ui/gtk/hists.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 62 insertions(+)

diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index 0b24cd6..4677172 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -152,6 +152,66 @@ static void perf_gtk__add_callchain_flat(struct rb_root *root, GtkTreeStore *sto
}
}

+static void perf_gtk__add_callchain_folded(struct rb_root *root, GtkTreeStore *store,
+ GtkTreeIter *parent, int col, u64 total)
+{
+ struct rb_node *nd;
+
+ for (nd = rb_first(root); nd; nd = rb_next(nd)) {
+ struct callchain_node *node;
+ struct callchain_list *chain;
+ GtkTreeIter iter;
+ char buf[64];
+ char *str, *str_alloc = NULL;
+ bool first = true;
+
+ node = rb_entry(nd, struct callchain_node, rb_node);
+
+ callchain_node__make_parent_list(node);
+
+ list_for_each_entry(chain, &node->parent_val, list) {
+ char name[1024];
+
+ callchain_list__sym_name(chain, name, sizeof(name), false);
+
+ if (asprintf(&str, "%s%s%s",
+ first ? "" : str_alloc,
+ first ? "" : symbol_conf.field_sep ?: "; ",
+ name) < 0)
+ return;
+
+ first = false;
+ free(str_alloc);
+ str_alloc = str;
+ }
+
+ list_for_each_entry(chain, &node->val, list) {
+ char name[1024];
+
+ callchain_list__sym_name(chain, name, sizeof(name), false);
+
+ if (asprintf(&str, "%s%s%s",
+ first ? "" : str_alloc,
+ first ? "" : symbol_conf.field_sep ?: "; ",
+ name) < 0)
+ return;
+
+ first = false;
+ free(str_alloc);
+ str_alloc = str;
+ }
+
+ gtk_tree_store_append(store, &iter, parent);
+
+ callchain_node__scnprintf_value(node, buf, sizeof(buf), total);
+ gtk_tree_store_set(store, &iter, 0, buf, -1);
+
+ gtk_tree_store_set(store, &iter, col, str, -1);
+
+ free(str_alloc);
+ }
+}
+
static void perf_gtk__add_callchain_graph(struct rb_root *root, GtkTreeStore *store,
GtkTreeIter *parent, int col, u64 total)
{
@@ -207,6 +267,8 @@ static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
{
if (callchain_param.mode == CHAIN_FLAT)
perf_gtk__add_callchain_flat(root, store, parent, col, total);
+ else if (callchain_param.mode == CHAIN_FOLDED)
+ perf_gtk__add_callchain_folded(root, store, parent, col, total);
else
perf_gtk__add_callchain_graph(root, store, parent, col, total);
}