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87932dab | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | // $Id$ | |
17 | ||
18 | /// | |
19 | /// Class to get organized with the way we're timing our methods... | |
20 | /// | |
21 | /// Typical usage is based on macros (like for AliLog related ones AliDebug...) | |
22 | /// | |
23 | /// The idea is to instrument the code with a few macro calls, and then, | |
24 | /// at the end of the execution, get a printout of *all* the timers, by using | |
25 | /// AliCodeTimer::Instance()->Print() | |
26 | /// instead of getting scattered outputs all over the place. | |
27 | /// | |
28 | /// To time a given method, use : | |
29 | /// | |
30 | /// void ClassA::MethodA(....) | |
31 | /// { | |
32 | /// AliCodeTimerAuto("") | |
33 | /// } | |
34 | /// | |
35 | /// To get several timers within a same method, use : | |
36 | /// | |
37 | /// void ClassA::MethodB(...) | |
38 | /// { | |
39 | /// AliCodeTimerStart("doing something") | |
40 | /// .... | |
41 | /// AliCodeTimerStop("doing something") | |
42 | /// | |
43 | /// AliCodeTimerStart("doing something else") | |
44 | /// .... | |
45 | /// AliCodeTimerStop("doing something else") | |
46 | /// } | |
47 | /// | |
48 | /// | |
49 | ||
50 | #include "AliCodeTimer.h" | |
51 | ||
52 | #include <TMap.h> | |
53 | #include <TObjString.h> | |
54 | #include <TStopwatch.h> | |
55 | #include <Riostream.h> | |
56 | ||
57 | /// \cond CLASSIMP | |
58 | ClassImp(AliCodeTimer) | |
59 | ClassImp(AliCodeTimer::AliPair) | |
60 | /// \endcond | |
61 | ||
62 | AliCodeTimer* AliCodeTimer::fgInstance(0x0); | |
63 | ||
64 | //_____________________________________________________________________________ | |
65 | void | |
66 | AliCodeTimer::AliPair::Print(Option_t* opt) const | |
67 | { | |
68 | // Print timer information | |
69 | cout << opt << Form("%s R:%.4fs C:%.4fs (%d slices)", | |
70 | Name().Data(),Timer()->RealTime(), | |
71 | Timer()->CpuTime(),Timer()->Counter()-1) << endl; | |
72 | } | |
73 | ||
74 | ||
75 | //_____________________________________________________________________________ | |
76 | AliCodeTimer::AliCodeTimer() : TObject(), fTimers(new TMap) | |
77 | { | |
78 | /// Ctor | |
79 | fTimers->SetOwner(kTRUE); | |
80 | } | |
81 | ||
82 | //_____________________________________________________________________________ | |
83 | AliCodeTimer::~AliCodeTimer() | |
84 | { | |
85 | /// Dtor | |
86 | Reset(); | |
87 | delete fTimers; | |
88 | } | |
89 | ||
90 | //_____________________________________________________________________________ | |
91 | AliCodeTimer* | |
92 | AliCodeTimer::Instance() | |
93 | { | |
94 | // single instance of this class | |
95 | if (!fgInstance) fgInstance = new AliCodeTimer; | |
96 | return fgInstance; | |
97 | } | |
98 | ||
99 | //_____________________________________________________________________________ | |
100 | void AliCodeTimer::Continue(const char* classname, const char* methodname, | |
101 | const char* message) | |
102 | { | |
103 | /// Resume a previously stop timer | |
104 | TStopwatch* t = Stopwatch(classname,methodname,message); | |
105 | if (t) | |
106 | { | |
107 | t->Continue(); | |
108 | } | |
109 | else | |
110 | { | |
111 | AliError(Form("No timer for %s/%s/%s",classname,methodname,message)); | |
112 | } | |
113 | } | |
114 | ||
115 | //_____________________________________________________________________________ | |
116 | Double_t AliCodeTimer::CpuTime(const char* classname, | |
117 | const char* methodname, | |
118 | const char* message) const | |
119 | { | |
120 | /// Return cpu time for a given timer | |
121 | TStopwatch* t = Stopwatch(classname,methodname,message); | |
122 | if (t) | |
123 | { | |
124 | return t->CpuTime(); | |
125 | } | |
126 | else | |
127 | { | |
128 | return 0; | |
129 | } | |
130 | } | |
131 | ||
132 | //_____________________________________________________________________________ | |
133 | TMap* | |
134 | AliCodeTimer::MethodMap(const char* classname) const | |
135 | { | |
136 | /// Return the map for a given "classname" | |
137 | return static_cast<TMap*>(fTimers->GetValue(classname)); | |
138 | } | |
139 | ||
140 | //_____________________________________________________________________________ | |
141 | TObjArray* | |
142 | AliCodeTimer::MessageArray(const char* classname, const char* methodname) const | |
143 | { | |
144 | /// Return the array for a given AliPair (classname,methodname) | |
145 | TMap* m = MethodMap(classname); | |
146 | if ( m ) | |
147 | { | |
148 | return static_cast<TObjArray*>(m->GetValue(methodname)); | |
149 | } | |
150 | return 0; | |
151 | } | |
152 | ||
153 | //_____________________________________________________________________________ | |
154 | void AliCodeTimer::PrintMethod(const char* classname, const char* methodname) const | |
155 | { | |
156 | /// Print all the timers for a given method | |
157 | TObjArray* messages = MessageArray(classname,methodname); | |
158 | messages->Sort(); | |
159 | ||
160 | cout << " " << methodname << " "; | |
161 | ||
162 | if ( messages->GetLast() == 0 ) | |
163 | { | |
164 | AliPair* p = static_cast<AliPair*>(messages->First()); | |
165 | p->Print(); | |
166 | } | |
167 | else | |
168 | { | |
169 | cout << endl; | |
170 | ||
171 | TIter next(messages); | |
172 | AliPair* p; | |
173 | ||
174 | while ( ( p = static_cast<AliPair*>(next()) ) ) | |
175 | { | |
176 | p->Print(" "); | |
177 | } | |
178 | } | |
179 | } | |
180 | ||
181 | //_____________________________________________________________________________ | |
182 | void AliCodeTimer::PrintClass(const char* classname) const | |
183 | { | |
184 | /// Print all the timers for a given class | |
185 | TMap* methods = MethodMap(classname); | |
186 | TIter next(methods); | |
187 | TObjString* methodname; | |
188 | TObjArray methodNameArray; | |
189 | ||
190 | while ( ( methodname = static_cast<TObjString*>(next()) ) ) | |
191 | { | |
192 | methodNameArray.Add(methodname); | |
193 | } | |
194 | ||
195 | cout << classname << endl; | |
196 | ||
197 | methodNameArray.Sort(); | |
198 | ||
199 | TIter mnext(&methodNameArray); | |
200 | ||
201 | while ( ( methodname = static_cast<TObjString*>(mnext()) ) ) | |
202 | { | |
203 | PrintMethod(classname,methodname->String().Data()); | |
204 | } | |
205 | } | |
206 | ||
207 | //_____________________________________________________________________________ | |
208 | void AliCodeTimer::Print(Option_t* /*opt*/) const | |
209 | { | |
210 | /// Print all the timers we hold | |
211 | TIter next(fTimers); | |
212 | TObjString* classname; | |
213 | TObjArray classNameArray; | |
214 | ||
215 | while ( ( classname = static_cast<TObjString*>(next()) ) ) | |
216 | { | |
217 | classNameArray.Add(classname); | |
218 | } | |
219 | ||
220 | classNameArray.Sort(); | |
221 | ||
222 | TIter cnext(&classNameArray); | |
223 | while ( ( classname = static_cast<TObjString*>(cnext()) ) ) | |
224 | { | |
225 | PrintClass(classname->String().Data()); | |
226 | } | |
227 | } | |
228 | ||
229 | //_____________________________________________________________________________ | |
230 | Double_t | |
231 | AliCodeTimer::RealTime(const char* classname, const char* methodname, | |
232 | const char* message) const | |
233 | { | |
234 | /// Return real time of a given time | |
235 | TStopwatch* t = Stopwatch(classname,methodname,message); | |
236 | if (t) | |
237 | { | |
238 | return t->RealTime(); | |
239 | } | |
240 | else | |
241 | { | |
242 | return 0; | |
243 | } | |
244 | } | |
245 | ||
246 | //_____________________________________________________________________________ | |
247 | void | |
248 | AliCodeTimer::Reset() | |
249 | { | |
250 | /// Reset | |
251 | TIter next(fTimers); | |
252 | TObjString* classname; | |
253 | ||
254 | while ( ( classname = static_cast<TObjString*>(next()) ) ) | |
255 | { | |
256 | TMap* m = static_cast<TMap*>(fTimers->GetValue(classname->String().Data())); | |
257 | m->DeleteAll(); | |
258 | } | |
259 | ||
260 | fTimers->DeleteAll(); | |
261 | } | |
262 | ||
263 | //_____________________________________________________________________________ | |
264 | void | |
265 | AliCodeTimer::Start(const char* classname, const char* methodname, | |
266 | const char* message) | |
267 | { | |
268 | /// Start a given time | |
269 | TStopwatch* t = Stopwatch(classname,methodname,message); | |
270 | if (!t) | |
271 | { | |
272 | TMap* m = MethodMap(classname); | |
273 | if (!m) | |
274 | { | |
275 | m = new TMap; | |
276 | m->SetOwner(kTRUE); | |
277 | fTimers->Add(new TObjString(classname),m); | |
278 | } | |
279 | TObjArray* messages = MessageArray(classname,methodname); | |
280 | if (!messages) | |
281 | { | |
282 | messages = new TObjArray; | |
283 | messages->SetOwner(kTRUE); | |
284 | m->Add(new TObjString(methodname),messages); | |
285 | } | |
286 | t = new TStopwatch; | |
287 | t->Start(kTRUE); | |
288 | t->Stop(); | |
289 | messages->Add(new AliPair(new TObjString(message),t)); | |
290 | } | |
291 | t->Start(kFALSE); | |
292 | } | |
293 | ||
294 | //_____________________________________________________________________________ | |
295 | void | |
296 | AliCodeTimer::Stop(const char* classname, const char* methodname, | |
297 | const char* message) | |
298 | { | |
299 | /// Stop a given timer | |
300 | TStopwatch* t = Stopwatch(classname,methodname,message); | |
301 | if (!t) | |
302 | { | |
303 | AliError(Form("No timer for %s/%s/%s",classname,methodname,message)); | |
304 | } | |
305 | else | |
306 | { | |
307 | t->Stop(); | |
308 | } | |
309 | } | |
310 | ||
311 | //_____________________________________________________________________________ | |
312 | TStopwatch* | |
313 | AliCodeTimer::Stopwatch(const char* classname, const char* methodname, | |
314 | const char* message) const | |
315 | { | |
316 | /// Return the internal TStopwatch for a given timer | |
317 | TObjArray* a = MessageArray(classname,methodname); | |
318 | if ( a ) | |
319 | { | |
320 | if (message) | |
321 | { | |
322 | TIter next(a); | |
323 | AliPair* p; | |
324 | while ( ( p = static_cast<AliPair*>(next()) ) ) | |
325 | { | |
326 | TString s = p->Name(); | |
327 | if ( s == TString(message) ) | |
328 | { | |
329 | return p->Timer(); | |
330 | } | |
331 | } | |
332 | } | |
333 | else | |
334 | { | |
335 | return static_cast<TStopwatch*>(a->First()); | |
336 | } | |
337 | } | |
338 | return 0x0; | |
339 | } |