1 files changed, 58 insertions, 0 deletions
diff --git a/libs/canvas/benchmark/render_parts.cc b/libs/canvas/benchmark/render_parts.cc
new file mode 100644
index 0000000000..14988ab5c6
--- /dev/null
+++ b/libs/canvas/benchmark/render_parts.cc
@@ -0,0 +1,58 @@
+#include <sys/time.h>
+#include <pangomm/init.h>
+#include "pbd/compose.h"
+#include "pbd/xml++.h"
+#include "canvas/group.h"
+#include "canvas/canvas.h"
+#include "canvas/root_group.h"
+#include "canvas/rectangle.h"
+#include "benchmark.h"
+
+using namespace std;
+using namespace ArdourCanvas;
+
+class RenderParts : public Benchmark
+{
+public:
+	RenderParts (string const & session) : Benchmark (session) {}
+
+	void set_items_per_cell (int items)
+	{
+		_items_per_cell = items;
+	}
+	
+	void do_run (ImageCanvas& canvas)
+	{
+		Group::default_items_per_cell = _items_per_cell;
+	
+		for (int i = 0; i < 1e4; i += 50) {
+			canvas.render_to_image (Rect (i, 0, i + 50, 1024));
+		}
+	}
+
+private:
+	int _items_per_cell;
+};
+
+int main (int argc, char* argv[])
+{
+	if (argc < 2) {
+		cerr << "Syntax: render_parts <session>\n";
+		exit (EXIT_FAILURE);
+	}
+
+	Pango::init ();
+
+	RenderParts render_parts (argv[1]);
+
+	int tests[] = { 16, 32, 64, 128, 256, 512, 1024, 1e4, 1e5, 1e6 };
+
+	for (unsigned int i = 0; i < sizeof (tests) / sizeof (int); ++i) {
+		render_parts.set_items_per_cell (tests[i]);
+		cout << tests[i] << " " << render_parts.run () << "\n";
+	}
+
+	return 0;
+}
+
+