This file is indexed.

/usr/share/Yap/pl/statistics.yap is in yap 5.1.3-6.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
/*************************************************************************
*									 *
*	 YAP Prolog 							 *
*									 *
*	Yap Prolog was developed at NCCUP - Universidade do Porto	 *
*									 *
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997	 *
*									 *
**************************************************************************
*									 *
* File:		statistics.yap						 *
* Last rev:	8/2/88							 *
* mods:									 *
* comments:	statistics on Prolog status				 *
*									 *
*************************************************************************/

%%% User interface for statistics

statistics :-
	'$runtime'(Runtime,_), 
	'$cputime'(CPUtime,_), 
	'$walltime'(Walltime,_), 
	'$statistics_heap_info'(HpSpa, HpInUse), 
	'$statistics_heap_max'(HpMax), 
	'$statistics_trail_info'(TrlSpa, TrlInUse), 
	'$statistics_trail_max'(TrlMax), 
	'$statistics_stacks_info'(StkSpa, GlobInU, LocInU), 
	'$statistics_global_max'(GlobMax), 
	'$statistics_local_max'(LocMax), 
	'$inform_heap_overflows'(NOfHO,TotHOTime),
	'$inform_stack_overflows'(NOfSO,TotSOTime),
	'$inform_trail_overflows'(NOfTO,TotTOTime),
	'$inform_gc'(NOfGC,TotGCTime,TotGCSize),
	'$inform_agc'(NOfAGC,TotAGCTime,TotAGCSize),
	'$statistics'(Runtime,CPUtime,Walltime,HpSpa,HpInUse,HpMax,TrlSpa, TrlInUse,TrlMax,StkSpa, GlobInU, LocInU,GlobMax,LocMax,NOfHO,TotHOTime,NOfSO,TotSOTime,NOfTO,TotTOTime,NOfGC,TotGCTime,TotGCSize,NOfAGC,TotAGCTime,TotAGCSize).

'$statistics'(Runtime,CPUtime,Walltime,HpSpa,HpInUse,HpMax,TrlSpa, TrlInUse,_TrlMax,StkSpa, GlobInU, LocInU,GlobMax,LocMax,NOfHO,TotHOTime,NOfSO,TotSOTime,NOfTO,TotTOTime,NOfGC,TotGCTime,TotGCSize,NOfAGC,TotAGCTime,TotAGCSize) :-
	TotalMemory is HpSpa+StkSpa+TrlSpa,
	format(user_error,"memory (total)~t~d bytes~35+~n", [TotalMemory]),
	format(user_error,"   program space~t~d bytes~35+", [HpSpa]),
	format(user_error,":~t  ~d in use~19+", [HpInUse]),
	HpFree is HpSpa-HpInUse,
	format(user_error,",~t  ~d free~19+~n", [HpFree]),
	format(user_error,"~t  ~d  max~73+~n", [HpMax]),
	format(user_error,"   stack space~t~d bytes~35+", [StkSpa]),
	StackInUse is GlobInU+LocInU,
	format(user_error,":~t  ~d in use~19+", [StackInUse]),
	StackFree is StkSpa-StackInUse,
	format(user_error,",~t  ~d free~19+~n", [StackFree]),
	format(user_error,"     global stack:~t~35+", []),
	format(user_error," ~t  ~d in use~19+", [GlobInU]),
	format(user_error,",~t  ~d  max~19+~n", [GlobMax]),
	format(user_error,"      local stack:~t~35+", []),
	format(user_error," ~t  ~d in use~19+", [LocInU]),
	format(user_error,",~t  ~d  max~19+~n", [LocMax]),
	format(user_error,"   trail stack~t~d bytes~35+", [TrlSpa]),
	format(user_error,":~t  ~d in use~19+", [TrlInUse]),
	TrlFree is TrlSpa-TrlInUse,
	format(user_error,",~t  ~d free~19+~n", [TrlFree]),
	OvfTime is (TotHOTime+TotSOTime+TotTOTime)/1000,
	format(user_error,"~n~t~3f~12+ sec. for ~w code, ~w stack, and ~w trail space overflows~n",
	       [OvfTime,NOfHO,NOfSO,NOfTO]),
	TotGCTimeF is float(TotGCTime)/1000,
	format(user_error,"~t~3f~12+ sec. for ~w garbage collections which collected ~d bytes~n",
	       [TotGCTimeF,NOfGC,TotGCSize]),
	TotAGCTimeF is float(TotAGCTime)/1000,
	format(user_error,"~t~3f~12+ sec. for ~w atom garbage collections which collected ~d bytes~n",
	       [TotAGCTimeF,NOfAGC,TotAGCSize]),
	RTime is float(Runtime)/1000,
	format(user_error,"~t~3f~12+ sec. runtime~n", [RTime]),
	CPUTime is float(CPUtime)/1000,
	format(user_error,"~t~3f~12+ sec. cputime~n", [CPUTime]),
	WallTime is float(Walltime)/1000,
	format(user_error,"~t~3f~12+ sec. elapsed time~n~n", [WallTime]),
	fail.
'$statistics'(_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_,_).

statistics(runtime,[T,L]) :-
	'$runtime'(T,L).
statistics(cputime,[T,L]) :-
	'$cputime'(T,L).
statistics(walltime,[T,L]) :-
	'$walltime'(T,L).
statistics(threads,NT) :-
	'$nof_threads'(NT).
statistics(threads_created,TC) :-
	'$nof_threads_created'(TC).
statistics(thread_cputime,TR) :-
	'$thread_runtime'(TR).
%statistics(core,[_]).
%statistics(memory,[_]).
statistics(heap,[Hp,HpF]) :-
	'$statistics_heap_info'(HpM, Hp),
	HpF is HpM-Hp.
statistics(program,Info) :-
	statistics(heap,Info).
statistics(global_stack,[GlobInU,GlobFree]) :-
	'$statistics_stacks_info'(StkSpa, GlobInU, LocInU),
	GlobFree is StkSpa-GlobInU-LocInU.
statistics(local_stack,[LocInU,LocFree]) :-
	'$statistics_stacks_info'(StkSpa, GlobInU, LocInU),
	LocFree is StkSpa-GlobInU-LocInU.
statistics(trail,[TrlInUse,TrlFree]) :-
	'$statistics_trail_info'(TrlSpa, TrlInUse),
	TrlFree is TrlSpa-TrlInUse.
statistics(garbage_collection,[NOfGC,TotGCSize,TotGCTime]) :-
	'$inform_gc'(NOfGC,TotGCTime,TotGCSize).
statistics(stack_shifts,[NOfHO,NOfSO,NOfTO]) :-
	'$inform_heap_overflows'(NOfHO,_),
	'$inform_stack_overflows'(NOfSO,_),
	'$inform_trail_overflows'(NOfTO,_).
statistics(atoms,[NOf,SizeOf]) :-
	'$statistics_atom_info'(NOf,SizeOf),
	'$inform_stack_overflows'(NOfSO,_),
	'$inform_trail_overflows'(NOfTO,_).
statistics(static_code,[ClauseSize, IndexSize, TreeIndexSize, ExtIndexSize, SWIndexSize]) :-
	'$statistics_db_size'(ClauseSize, TreeIndexSize, ExtIndexSize, SWIndexSize),
	IndexSize is TreeIndexSize+ ExtIndexSize+ SWIndexSize.
statistics(dynamic_code,[ClauseSize,IndexSize, TreeIndexSize, CPIndexSize, ExtIndexSize, SWIndexSize]) :-
	'$statistics_lu_db_size'(ClauseSize, TreeIndexSize, CPIndexSize, ExtIndexSize, SWIndexSize),
	IndexSize is TreeIndexSize+CPIndexSize+ ExtIndexSize+ SWIndexSize.

key_statistics(Key, NOfEntries, TotalSize) :-
	key_statistics(Key, NOfEntries, ClSize, IndxSize),
	TotalSize is ClSize+IndxSize.


%%	time(:Goal)
%
%	Time the execution of Goal.  Possible choice-points of Goal are removed.
%	Based on the SWI-Prolog definition minus reporting the number of inferences,
%	which YAP does not currently supports

:- meta_predicate time(:).

time(Goal) :-
	var(Goal),
	'$do_error'(instantiation_error,time(Goal)).
time(_:Goal) :-
	var(Goal),
	'$do_error'(instantiation_error,time(Goal)).
time(Goal) :- \+ callable(Goal), !,
	'$do_error'(type_error(callable,Goal),time(Goal)).
time(Goal) :-
	statistics(walltime, _),
	statistics(cputime, _), 
	(   catch(Goal, E, true)
	->  Result = yes
	;   Result = no
	),
	statistics(cputime, [_, Time]),
	statistics(walltime, [_, Wall]),
	(   Time =:= 0
	->  CPU = 'Inf'
	;   CPU is truncate(Time/Wall*100)
	),
	TimeSecs is Time/1000,
	WallSecs is Wall/1000,
	format(user_error,'% ~3f CPU in ~3f seconds (~|~t~w~3+% CPU)~n', [TimeSecs, WallSecs, CPU]),
	(   nonvar(E)
	->  throw(E)
	;   Result == yes
	).