src/Pure/ML-Systems/timing.ML

--- a/src/Pure/ML-Systems/timing.ML	Sat Nov 06 16:53:07 2010 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,35 +0,0 @@
-(*  Title:      Pure/ML-Systems/timing.ML
-    Author:     Makarius
-
-Basic support for time measurement.
-*)
-
-val seconds = Time.fromReal;
-
-fun start_timing () =
-  let
-    val real_timer = Timer.startRealTimer ();
-    val real_time = Timer.checkRealTimer real_timer;
-    val cpu_timer = Timer.startCPUTimer ();
-    val cpu_times = Timer.checkCPUTimes cpu_timer;
-  in (real_timer, real_time, cpu_timer, cpu_times) end;
-
-type timing = {message: string, elapsed: Time.time, cpu: Time.time, gc: Time.time};
-
-fun end_timing (real_timer, real_time, cpu_timer, cpu_times) : timing =
-  let
-    val real_time2 = Timer.checkRealTimer real_timer;
-    val {nongc = {sys, usr}, gc = {sys = gc_sys, usr = gc_usr}} = cpu_times;
-    val {nongc = {sys = sys2, usr = usr2}, gc = {sys = gc_sys2, usr = gc_usr2}} =
-      Timer.checkCPUTimes cpu_timer;
-
-    open Time;
-    val elapsed = real_time2 - real_time;
-    val gc = gc_usr2 - gc_usr + gc_sys2 - gc_sys;
-    val cpu = usr2 - usr + sys2 - sys + gc;
-
-    val message =
-      (toString elapsed ^ "s elapsed time, " ^ toString cpu ^ "s cpu time, " ^
-        toString gc ^ "s GC time") handle Time.Time => "";
-  in {message = message, elapsed = elapsed, cpu = cpu, gc = gc} end;
-