diff -r 7315ee1deaf3 -r 1588bec693c2 src/Tools/profiling.ML
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Tools/profiling.ML	Wed Jul 12 15:20:01 2023 +0200
@@ -0,0 +1,156 @@
+(*  Author:     Makarius
+    LICENSE:    Isabelle (BSD-3)
+
+Statistics for theory content.
+*)
+
+type theory_statistics =
+ {theory: string,
+  locales: int,
+  locale_thms: int,
+  global_thms: int};
+
+type session_statistics =
+ {sizeof_thys_id: int,
+  sizeof_thms_id: int,
+  sizeof_terms: int,
+  sizeof_types: int,
+  sizeof_spaces: int};
+
+structure Statistics:
+sig
+  val locale_names: theory -> string list
+  val locale_thms: theory -> string -> thm list
+  val global_thms: theory -> thm list
+  val all_thms: theory -> thm list
+  val statistics: string list -> theory_statistics list * session_statistics
+  val main: unit -> unit
+end =
+struct
+
+(* theory content *)
+
+fun locale_names thy =
+  let
+    val parent_spaces = map Locale.locale_space (Theory.parents_of thy);
+    fun add name =
+      if exists (fn space => Name_Space.declared space name) parent_spaces then I
+      else cons name;
+  in fold add (Locale.get_locales thy) [] end;
+
+fun proper_thm thm = not (Thm.eq_thm_prop (Drule.dummy_thm, thm));
+
+fun locale_thms thy loc =
+  (Locale.locale_notes thy loc, []) |->
+    (fold (#2 #> fold (#2 #> (fold (#1 #> fold (fn thm => proper_thm thm ? cons thm ))))));
+
+fun global_thms thy =
+  Facts.dest_static true
+    (map Global_Theory.facts_of (Theory.parents_of thy)) (Global_Theory.facts_of thy)
+  |> maps #2;
+
+fun all_thms thy =
+  let val locales = locale_names thy
+  in maps (locale_thms thy) locales @ global_thms thy end;
+
+
+(* session content *)
+
+fun theories_content thys =
+  let
+    val thms = maps all_thms thys;
+    val thys_id = map Context.theory_id thys;
+    val thms_id = map Thm.theory_id thms;
+    val terms = (fold o Thm.fold_terms {hyps = true}) cons thms [];
+    val types = (fold o fold_types) cons terms [];
+    val spaces =
+      maps (fn f => map f thys)
+       [Sign.class_space,
+        Sign.type_space,
+        Sign.const_space,
+        Theory.axiom_space,
+        Thm.oracle_space,
+        Global_Theory.fact_space,
+        Locale.locale_space,
+        Attrib.attribute_space o Context.Theory,
+        Method.method_space o Context.Theory];
+  in {thys_id = thys_id, thms_id = thms_id, terms = terms, types = types, spaces = spaces} end;
+
+fun sizeof_diff (a, b) = ML_Heap.sizeof a - ML_Heap.sizeof b;
+
+
+(* collect statistics *)
+
+fun theory_statistics thy : theory_statistics =
+  let
+    val locales = locale_names thy;
+  in
+   {theory = Context.theory_long_name thy,
+    locales = length locales,
+    locale_thms = length (maps (locale_thms thy) locales),
+    global_thms = length (global_thms thy)}
+  end;
+
+fun statistics theories =
+  let
+    val theories_member = Symtab.defined (Symtab.make_set theories) o Context.theory_long_name;
+
+    val context_thys =
+      #contexts (Context.finish_tracing ())
+      |> map_filter (fn (Context.Theory thy, _) => SOME thy | _ => NONE);
+
+    val loader_thys = map Thy_Info.get_theory (Thy_Info.get_names ());
+    val loaded_thys = filter theories_member loader_thys;
+
+    val all_thys = loader_thys @ context_thys;
+    val base_thys = filter theories_member all_thys;
+
+    val {thys_id = all_thys_id, thms_id = all_thms_id, terms = all_terms,
+          types = all_types, spaces = all_spaces} = theories_content all_thys;
+    val {thys_id = base_thys_id, thms_id = base_thms_id, terms = base_terms,
+          types = base_types, spaces = base_spaces} = theories_content base_thys;
+    val session_statistics =
+      {sizeof_thys_id = sizeof_diff (all_thys_id, base_thys_id),
+       sizeof_thms_id = sizeof_diff (all_thms_id, base_thms_id),
+       sizeof_terms = sizeof_diff (all_terms, base_terms),
+       sizeof_types = sizeof_diff (all_types, base_types),
+       sizeof_spaces = sizeof_diff (all_spaces, base_spaces)};
+  in (map theory_statistics loaded_thys, session_statistics) end;
+
+
+(* main entry point for "isabelle process" *)
+
+local
+
+val decode_args : string list XML.Decode.T =
+  let open XML.Decode in list string end;
+
+val encode_theories_result : theory_statistics list XML.Encode.T =
+  map (fn {theory = a, locales = b, locale_thms = c, global_thms = d} => (a, (b, (c, d))))
+  #> let open XML.Encode in list (pair string (pair int (pair int int))) end;
+
+val encode_session_result : session_statistics XML.Encode.T =
+  (fn {sizeof_thys_id = a,
+       sizeof_thms_id = b,
+       sizeof_terms = c,
+       sizeof_types = d,
+       sizeof_spaces = e} => (a, (b, (c, (d, e)))))
+  #> let open XML.Encode in pair int (pair int (pair int (pair int int))) end;
+
+val encode_result = let open XML.Encode in pair encode_theories_result encode_session_result end;
+
+in
+
+fun main () =
+  (case getenv "AUTOCORRES_STATISTICS" of
+    "" => ()
+  | dir_name =>
+      let
+        val dir = Path.explode dir_name;
+        val args = decode_args (YXML.parse_body (File.read (dir + \<^path>\<open>args.yxml\<close>)));
+        val result = statistics args;
+      in File.write (dir + \<^path>\<open>result.yxml\<close>) (YXML.string_of_body (encode_result result)) end);
+
+end;
+
+end;