TODO: Add some additional items suggested by Eero.

Again, simply trying to ensure that good ideas that come in via email
don't get dropped on the floor.

 Report shader compilation time.

+Report elapsed time per frame.
+
+Add options to control which metrics should be collected.
+
 Add Eric's tiny hash table for collecting per-shader statistics

 	people.freedesktop.org:~anholt/hash_table
@@ -45,6 +49,9 @@ Infrastructure (larger-scale things, more future-looking items)

 Use ncurses for a better top-like display.

+Report timestamps and CPU time durations for operations causing
+CPU/GPU syncs.
+
 Emit per-frame data in a format for external timeline viewer.

 Allow enabling/disabling of tracing at run-time
@@ -61,10 +68,16 @@ should automatically collect:

 Audit exisiting visualization tools before writing one from scratch

-	Eero suggested that pytimechart might be well-suited:
+	Eero suggested two possibilities:

+		pytimechart
+		-----------
 		http://pythonhosted.org/pytimechart/index.html

+		e-graph
+		-------
+		https://gitorious.org/e-graph
+
 	Others?

 Explore using perf/LTTng probing instead of LD_PRELOAD wrapper