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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 | **************************************************************************/ | |
cc124d17 | 15 | // $Id$ |
87932dab | 16 | |
cc124d17 | 17 | //_________________________________________________________________________ |
18 | // Class to get organized with the way we're timing our methods... | |
19 | // | |
20 | // Typical usage is based on macros (like for AliLog related ones AliDebug...) | |
21 | // | |
22 | // The idea is to instrument the code with a few macro calls, and then, | |
23 | // at the end of the execution, get a printout of *all* the timers, by using | |
24 | // AliCodeTimer::Instance()->Print() | |
25 | // instead of getting scattered outputs all over the place. | |
26 | // | |
27 | // To time a given method, use : | |
28 | // | |
29 | // void ClassA::MethodA(....) | |
30 | // { | |
31 | // AliCodeTimerAuto("") | |
32 | // } | |
33 | // | |
34 | // To get several timers within a same method, use : | |
35 | // | |
36 | // void ClassA::MethodB(...) | |
37 | // { | |
38 | // AliCodeTimerStart("doing something") | |
39 | // .... | |
40 | // AliCodeTimerStop("doing something") | |
41 | // | |
42 | // AliCodeTimerStart("doing something else") | |
43 | // .... | |
44 | // AliCodeTimerStop("doing something else") | |
45 | // } | |
87932dab | 46 | |
47 | #include "AliCodeTimer.h" | |
48 | ||
49 | #include <TMap.h> | |
50 | #include <TObjString.h> | |
51 | #include <TStopwatch.h> | |
52 | #include <Riostream.h> | |
53 | ||
54 | /// \cond CLASSIMP | |
55 | ClassImp(AliCodeTimer) | |
56 | ClassImp(AliCodeTimer::AliPair) | |
57 | /// \endcond | |
58 | ||
59 | AliCodeTimer* AliCodeTimer::fgInstance(0x0); | |
60 | ||
61 | //_____________________________________________________________________________ | |
62 | void | |
63 | AliCodeTimer::AliPair::Print(Option_t* opt) const | |
64 | { | |
65 | // Print timer information | |
66 | cout << opt << Form("%s R:%.4fs C:%.4fs (%d slices)", | |
67 | Name().Data(),Timer()->RealTime(), | |
68 | Timer()->CpuTime(),Timer()->Counter()-1) << endl; | |
69 | } | |
70 | ||
71 | ||
72 | //_____________________________________________________________________________ | |
73 | AliCodeTimer::AliCodeTimer() : TObject(), fTimers(new TMap) | |
74 | { | |
75 | /// Ctor | |
76 | fTimers->SetOwner(kTRUE); | |
77 | } | |
78 | ||
79 | //_____________________________________________________________________________ | |
80 | AliCodeTimer::~AliCodeTimer() | |
81 | { | |
82 | /// Dtor | |
83 | Reset(); | |
84 | delete fTimers; | |
85 | } | |
86 | ||
87 | //_____________________________________________________________________________ | |
88 | AliCodeTimer* | |
89 | AliCodeTimer::Instance() | |
90 | { | |
91 | // single instance of this class | |
92 | if (!fgInstance) fgInstance = new AliCodeTimer; | |
93 | return fgInstance; | |
94 | } | |
95 | ||
96 | //_____________________________________________________________________________ | |
97 | void AliCodeTimer::Continue(const char* classname, const char* methodname, | |
98 | const char* message) | |
99 | { | |
100 | /// Resume a previously stop timer | |
101 | TStopwatch* t = Stopwatch(classname,methodname,message); | |
102 | if (t) | |
103 | { | |
104 | t->Continue(); | |
105 | } | |
106 | else | |
107 | { | |
108 | AliError(Form("No timer for %s/%s/%s",classname,methodname,message)); | |
109 | } | |
110 | } | |
111 | ||
112 | //_____________________________________________________________________________ | |
113 | Double_t AliCodeTimer::CpuTime(const char* classname, | |
114 | const char* methodname, | |
115 | const char* message) const | |
116 | { | |
117 | /// Return cpu time for a given timer | |
118 | TStopwatch* t = Stopwatch(classname,methodname,message); | |
119 | if (t) | |
120 | { | |
121 | return t->CpuTime(); | |
122 | } | |
123 | else | |
124 | { | |
125 | return 0; | |
126 | } | |
127 | } | |
128 | ||
129 | //_____________________________________________________________________________ | |
130 | TMap* | |
131 | AliCodeTimer::MethodMap(const char* classname) const | |
132 | { | |
133 | /// Return the map for a given "classname" | |
134 | return static_cast<TMap*>(fTimers->GetValue(classname)); | |
135 | } | |
136 | ||
137 | //_____________________________________________________________________________ | |
138 | TObjArray* | |
139 | AliCodeTimer::MessageArray(const char* classname, const char* methodname) const | |
140 | { | |
141 | /// Return the array for a given AliPair (classname,methodname) | |
142 | TMap* m = MethodMap(classname); | |
143 | if ( m ) | |
144 | { | |
145 | return static_cast<TObjArray*>(m->GetValue(methodname)); | |
146 | } | |
147 | return 0; | |
148 | } | |
149 | ||
150 | //_____________________________________________________________________________ | |
151 | void AliCodeTimer::PrintMethod(const char* classname, const char* methodname) const | |
152 | { | |
153 | /// Print all the timers for a given method | |
154 | TObjArray* messages = MessageArray(classname,methodname); | |
155 | messages->Sort(); | |
156 | ||
157 | cout << " " << methodname << " "; | |
158 | ||
159 | if ( messages->GetLast() == 0 ) | |
160 | { | |
161 | AliPair* p = static_cast<AliPair*>(messages->First()); | |
162 | p->Print(); | |
163 | } | |
164 | else | |
165 | { | |
166 | cout << endl; | |
167 | ||
168 | TIter next(messages); | |
169 | AliPair* p; | |
170 | ||
171 | while ( ( p = static_cast<AliPair*>(next()) ) ) | |
172 | { | |
173 | p->Print(" "); | |
174 | } | |
175 | } | |
176 | } | |
177 | ||
178 | //_____________________________________________________________________________ | |
179 | void AliCodeTimer::PrintClass(const char* classname) const | |
180 | { | |
181 | /// Print all the timers for a given class | |
182 | TMap* methods = MethodMap(classname); | |
183 | TIter next(methods); | |
184 | TObjString* methodname; | |
185 | TObjArray methodNameArray; | |
186 | ||
187 | while ( ( methodname = static_cast<TObjString*>(next()) ) ) | |
188 | { | |
189 | methodNameArray.Add(methodname); | |
190 | } | |
191 | ||
192 | cout << classname << endl; | |
193 | ||
194 | methodNameArray.Sort(); | |
195 | ||
196 | TIter mnext(&methodNameArray); | |
197 | ||
198 | while ( ( methodname = static_cast<TObjString*>(mnext()) ) ) | |
199 | { | |
200 | PrintMethod(classname,methodname->String().Data()); | |
201 | } | |
202 | } | |
203 | ||
204 | //_____________________________________________________________________________ | |
205 | void AliCodeTimer::Print(Option_t* /*opt*/) const | |
206 | { | |
207 | /// Print all the timers we hold | |
208 | TIter next(fTimers); | |
209 | TObjString* classname; | |
210 | TObjArray classNameArray; | |
211 | ||
212 | while ( ( classname = static_cast<TObjString*>(next()) ) ) | |
213 | { | |
214 | classNameArray.Add(classname); | |
215 | } | |
216 | ||
217 | classNameArray.Sort(); | |
218 | ||
219 | TIter cnext(&classNameArray); | |
220 | while ( ( classname = static_cast<TObjString*>(cnext()) ) ) | |
221 | { | |
222 | PrintClass(classname->String().Data()); | |
223 | } | |
224 | } | |
225 | ||
226 | //_____________________________________________________________________________ | |
227 | Double_t | |
228 | AliCodeTimer::RealTime(const char* classname, const char* methodname, | |
229 | const char* message) const | |
230 | { | |
231 | /// Return real time of a given time | |
232 | TStopwatch* t = Stopwatch(classname,methodname,message); | |
233 | if (t) | |
234 | { | |
235 | return t->RealTime(); | |
236 | } | |
237 | else | |
238 | { | |
239 | return 0; | |
240 | } | |
241 | } | |
242 | ||
243 | //_____________________________________________________________________________ | |
244 | void | |
245 | AliCodeTimer::Reset() | |
246 | { | |
247 | /// Reset | |
248 | TIter next(fTimers); | |
249 | TObjString* classname; | |
250 | ||
251 | while ( ( classname = static_cast<TObjString*>(next()) ) ) | |
252 | { | |
253 | TMap* m = static_cast<TMap*>(fTimers->GetValue(classname->String().Data())); | |
254 | m->DeleteAll(); | |
255 | } | |
256 | ||
257 | fTimers->DeleteAll(); | |
258 | } | |
259 | ||
260 | //_____________________________________________________________________________ | |
261 | void | |
262 | AliCodeTimer::Start(const char* classname, const char* methodname, | |
263 | const char* message) | |
264 | { | |
265 | /// Start a given time | |
266 | TStopwatch* t = Stopwatch(classname,methodname,message); | |
267 | if (!t) | |
268 | { | |
269 | TMap* m = MethodMap(classname); | |
270 | if (!m) | |
271 | { | |
272 | m = new TMap; | |
273 | m->SetOwner(kTRUE); | |
274 | fTimers->Add(new TObjString(classname),m); | |
275 | } | |
276 | TObjArray* messages = MessageArray(classname,methodname); | |
277 | if (!messages) | |
278 | { | |
279 | messages = new TObjArray; | |
280 | messages->SetOwner(kTRUE); | |
281 | m->Add(new TObjString(methodname),messages); | |
282 | } | |
283 | t = new TStopwatch; | |
284 | t->Start(kTRUE); | |
285 | t->Stop(); | |
286 | messages->Add(new AliPair(new TObjString(message),t)); | |
287 | } | |
288 | t->Start(kFALSE); | |
289 | } | |
290 | ||
291 | //_____________________________________________________________________________ | |
292 | void | |
293 | AliCodeTimer::Stop(const char* classname, const char* methodname, | |
294 | const char* message) | |
295 | { | |
296 | /// Stop a given timer | |
297 | TStopwatch* t = Stopwatch(classname,methodname,message); | |
298 | if (!t) | |
299 | { | |
300 | AliError(Form("No timer for %s/%s/%s",classname,methodname,message)); | |
301 | } | |
302 | else | |
303 | { | |
304 | t->Stop(); | |
305 | } | |
306 | } | |
307 | ||
308 | //_____________________________________________________________________________ | |
309 | TStopwatch* | |
310 | AliCodeTimer::Stopwatch(const char* classname, const char* methodname, | |
311 | const char* message) const | |
312 | { | |
313 | /// Return the internal TStopwatch for a given timer | |
314 | TObjArray* a = MessageArray(classname,methodname); | |
315 | if ( a ) | |
316 | { | |
317 | if (message) | |
318 | { | |
319 | TIter next(a); | |
320 | AliPair* p; | |
321 | while ( ( p = static_cast<AliPair*>(next()) ) ) | |
322 | { | |
323 | TString s = p->Name(); | |
324 | if ( s == TString(message) ) | |
325 | { | |
326 | return p->Timer(); | |
327 | } | |
328 | } | |
329 | } | |
330 | else | |
331 | { | |
332 | return static_cast<TStopwatch*>(a->First()); | |
333 | } | |
334 | } | |
335 | return 0x0; | |
336 | } |