1//===-- Timer.cpp - Interval Timing Support -------------------------------===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// Interval Timing implementation.
11//
12//===----------------------------------------------------------------------===//
13
14#include "llvm/Support/Timer.h"
15#include "llvm/Support/CommandLine.h"
16#include "llvm/Support/Debug.h"
17#include "llvm/Support/ManagedStatic.h"
18#include "llvm/Support/raw_ostream.h"
19#include "llvm/Support/Format.h"
20#include "llvm/System/Mutex.h"
21#include "llvm/System/Process.h"
22#include "llvm/ADT/OwningPtr.h"
23#include "llvm/ADT/StringMap.h"
24using namespace llvm;
25
26// CreateInfoOutputFile - Return a file stream to print our output on.
27namespace llvm { extern raw_ostream *CreateInfoOutputFile(); }
28
29// getLibSupportInfoOutputFilename - This ugly hack is brought to you courtesy
30// of constructor/destructor ordering being unspecified by C++. Basically the
31// problem is that a Statistic object gets destroyed, which ends up calling
32// 'GetLibSupportInfoOutputFile()' (below), which calls this function.
33// LibSupportInfoOutputFilename used to be a global variable, but sometimes it
34// would get destroyed before the Statistic, causing havoc to ensue. We "fix"
35// this by creating the string the first time it is needed and never destroying
36// it.
37static ManagedStatic<std::string> LibSupportInfoOutputFilename;
38static std::string &getLibSupportInfoOutputFilename() {
39 return *LibSupportInfoOutputFilename;
40}
41
42static ManagedStatic<sys::SmartMutex<true> > TimerLock;
43
44namespace {
45 static cl::opt<bool>
46 TrackSpace("track-memory", cl::desc("Enable -time-passes memory "
47 "tracking (this may be slow)"),
48 cl::Hidden);
49
50 static cl::opt<std::string, true>
51 InfoOutputFilename("info-output-file", cl::value_desc("filename"),
52 cl::desc("File to append -stats and -timer output to"),
53 cl::Hidden, cl::location(getLibSupportInfoOutputFilename()));
54}
55
56// CreateInfoOutputFile - Return a file stream to print our output on.
57raw_ostream *llvm::CreateInfoOutputFile() {
58 const std::string &OutputFilename = getLibSupportInfoOutputFilename();
59 if (OutputFilename.empty())
60 return new raw_fd_ostream(2, false); // stderr.
61 if (OutputFilename == "-")
62 return new raw_fd_ostream(1, false); // stdout.
63
64 // Append mode is used because the info output file is opened and closed
65 // each time -stats or -time-passes wants to print output to it. To
66 // compensate for this, the test-suite Makefiles have code to delete the
67 // info output file before running commands which write to it.
68 std::string Error;
69 raw_ostream *Result = new raw_fd_ostream(OutputFilename.c_str(),
70 Error, raw_fd_ostream::F_Append);
71 if (Error.empty())
72 return Result;
73
74 errs() << "Error opening info-output-file '"
75 << OutputFilename << " for appending!\n";
76 delete Result;
77 return new raw_fd_ostream(2, false); // stderr.
78}
79
80
81static TimerGroup *DefaultTimerGroup = 0;
82static TimerGroup *getDefaultTimerGroup() {
83 TimerGroup *tmp = DefaultTimerGroup;
84 sys::MemoryFence();
85 if (tmp) return tmp;
86
87 llvm_acquire_global_lock();
88 tmp = DefaultTimerGroup;
89 if (!tmp) {
90 tmp = new TimerGroup("Miscellaneous Ungrouped Timers");
91 sys::MemoryFence();
92 DefaultTimerGroup = tmp;
93 }
94 llvm_release_global_lock();
95
96 return tmp;
97}
98
99//===----------------------------------------------------------------------===//
100// Timer Implementation
101//===----------------------------------------------------------------------===//
102
103void Timer::init(StringRef N) {
104 assert(TG == 0 && "Timer already initialized");
105 Name.assign(N.begin(), N.end());
106 Started = false;
107 TG = getDefaultTimerGroup();
108 TG->addTimer(*this);
109}
110
111void Timer::init(StringRef N, TimerGroup &tg) {
112 assert(TG == 0 && "Timer already initialized");
113 Name.assign(N.begin(), N.end());
114 Started = false;
115 TG = &tg;
116 TG->addTimer(*this);
117}
118
119Timer::~Timer() {
120 if (!TG) return; // Never initialized, or already cleared.
121 TG->removeTimer(*this);
122}
123
124static inline size_t getMemUsage() {
125 if (!TrackSpace) return 0;
126 return sys::Process::GetMallocUsage();
127}
128
129TimeRecord TimeRecord::getCurrentTime(bool Start) {
130 TimeRecord Result;
131 sys::TimeValue now(0,0), user(0,0), sys(0,0);
132
133 if (Start) {
134 Result.MemUsed = getMemUsage();
135 sys::Process::GetTimeUsage(now, user, sys);
136 } else {
137 sys::Process::GetTimeUsage(now, user, sys);
138 Result.MemUsed = getMemUsage();
139 }
140
141 Result.WallTime = now.seconds() + now.microseconds() / 1000000.0;
142 Result.UserTime = user.seconds() + user.microseconds() / 1000000.0;
143 Result.SystemTime = sys.seconds() + sys.microseconds() / 1000000.0;
144 return Result;
145}
146
147static ManagedStatic<std::vector<Timer*> > ActiveTimers;
148
149void Timer::startTimer() {
150 Started = true;
151 ActiveTimers->push_back(this);
152 Time -= TimeRecord::getCurrentTime(true);
153}
154
155void Timer::stopTimer() {
156 Time += TimeRecord::getCurrentTime(false);
157
158 if (ActiveTimers->back() == this) {
159 ActiveTimers->pop_back();
160 } else {
161 std::vector<Timer*>::iterator I =
162 std::find(ActiveTimers->begin(), ActiveTimers->end(), this);
163 assert(I != ActiveTimers->end() && "stop but no startTimer?");
164 ActiveTimers->erase(I);
165 }
166}
167
168static void printVal(double Val, double Total, raw_ostream &OS) {
169 if (Total < 1e-7) // Avoid dividing by zero.
170 OS << " ----- ";
171 else {
172 OS << " " << format("%7.4f", Val) << " (";
173 OS << format("%5.1f", Val*100/Total) << "%)";
174 }
175}
176
177void TimeRecord::print(const TimeRecord &Total, raw_ostream &OS) const {
178 if (Total.getUserTime())
179 printVal(getUserTime(), Total.getUserTime(), OS);
180 if (Total.getSystemTime())
181 printVal(getSystemTime(), Total.getSystemTime(), OS);
182 if (Total.getProcessTime())
183 printVal(getProcessTime(), Total.getProcessTime(), OS);
184 printVal(getWallTime(), Total.getWallTime(), OS);
185
186 OS << " ";
187
188 if (Total.getMemUsed())
189 OS << format("%9lld", (long long)getMemUsed()) << " ";
190}
191
192
193//===----------------------------------------------------------------------===//
194// NamedRegionTimer Implementation
195//===----------------------------------------------------------------------===//
196
197namespace {
198
199typedef StringMap<Timer> Name2TimerMap;
200
201class Name2PairMap {
202 StringMap<std::pair<TimerGroup*, Name2TimerMap> > Map;
203public:
204 ~Name2PairMap() {
205 for (StringMap<std::pair<TimerGroup*, Name2TimerMap> >::iterator
206 I = Map.begin(), E = Map.end(); I != E; ++I)
207 delete I->second.first;
208 }
209
210 Timer &get(StringRef Name, StringRef GroupName) {
211 sys::SmartScopedLock<true> L(*TimerLock);
212
213 std::pair<TimerGroup*, Name2TimerMap> &GroupEntry = Map[GroupName];
214
215 if (!GroupEntry.first)
216 GroupEntry.first = new TimerGroup(GroupName);
217
218 Timer &T = GroupEntry.second[Name];
219 if (!T.isInitialized())
220 T.init(Name, *GroupEntry.first);
221 return T;
222 }
223};
224
225}
226
227static ManagedStatic<Name2TimerMap> NamedTimers;
228static ManagedStatic<Name2PairMap> NamedGroupedTimers;
229
230static Timer &getNamedRegionTimer(StringRef Name) {
231 sys::SmartScopedLock<true> L(*TimerLock);
232
233 Timer &T = (*NamedTimers)[Name];
234 if (!T.isInitialized())
235 T.init(Name);
236 return T;
237}
238
| 1//===-- Timer.cpp - Interval Timing Support -------------------------------===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// Interval Timing implementation.
11//
12//===----------------------------------------------------------------------===//
13
14#include "llvm/Support/Timer.h"
15#include "llvm/Support/CommandLine.h"
16#include "llvm/Support/Debug.h"
17#include "llvm/Support/ManagedStatic.h"
18#include "llvm/Support/raw_ostream.h"
19#include "llvm/Support/Format.h"
20#include "llvm/System/Mutex.h"
21#include "llvm/System/Process.h"
22#include "llvm/ADT/OwningPtr.h"
23#include "llvm/ADT/StringMap.h"
24using namespace llvm;
25
26// CreateInfoOutputFile - Return a file stream to print our output on.
27namespace llvm { extern raw_ostream *CreateInfoOutputFile(); }
28
29// getLibSupportInfoOutputFilename - This ugly hack is brought to you courtesy
30// of constructor/destructor ordering being unspecified by C++. Basically the
31// problem is that a Statistic object gets destroyed, which ends up calling
32// 'GetLibSupportInfoOutputFile()' (below), which calls this function.
33// LibSupportInfoOutputFilename used to be a global variable, but sometimes it
34// would get destroyed before the Statistic, causing havoc to ensue. We "fix"
35// this by creating the string the first time it is needed and never destroying
36// it.
37static ManagedStatic<std::string> LibSupportInfoOutputFilename;
38static std::string &getLibSupportInfoOutputFilename() {
39 return *LibSupportInfoOutputFilename;
40}
41
42static ManagedStatic<sys::SmartMutex<true> > TimerLock;
43
44namespace {
45 static cl::opt<bool>
46 TrackSpace("track-memory", cl::desc("Enable -time-passes memory "
47 "tracking (this may be slow)"),
48 cl::Hidden);
49
50 static cl::opt<std::string, true>
51 InfoOutputFilename("info-output-file", cl::value_desc("filename"),
52 cl::desc("File to append -stats and -timer output to"),
53 cl::Hidden, cl::location(getLibSupportInfoOutputFilename()));
54}
55
56// CreateInfoOutputFile - Return a file stream to print our output on.
57raw_ostream *llvm::CreateInfoOutputFile() {
58 const std::string &OutputFilename = getLibSupportInfoOutputFilename();
59 if (OutputFilename.empty())
60 return new raw_fd_ostream(2, false); // stderr.
61 if (OutputFilename == "-")
62 return new raw_fd_ostream(1, false); // stdout.
63
64 // Append mode is used because the info output file is opened and closed
65 // each time -stats or -time-passes wants to print output to it. To
66 // compensate for this, the test-suite Makefiles have code to delete the
67 // info output file before running commands which write to it.
68 std::string Error;
69 raw_ostream *Result = new raw_fd_ostream(OutputFilename.c_str(),
70 Error, raw_fd_ostream::F_Append);
71 if (Error.empty())
72 return Result;
73
74 errs() << "Error opening info-output-file '"
75 << OutputFilename << " for appending!\n";
76 delete Result;
77 return new raw_fd_ostream(2, false); // stderr.
78}
79
80
81static TimerGroup *DefaultTimerGroup = 0;
82static TimerGroup *getDefaultTimerGroup() {
83 TimerGroup *tmp = DefaultTimerGroup;
84 sys::MemoryFence();
85 if (tmp) return tmp;
86
87 llvm_acquire_global_lock();
88 tmp = DefaultTimerGroup;
89 if (!tmp) {
90 tmp = new TimerGroup("Miscellaneous Ungrouped Timers");
91 sys::MemoryFence();
92 DefaultTimerGroup = tmp;
93 }
94 llvm_release_global_lock();
95
96 return tmp;
97}
98
99//===----------------------------------------------------------------------===//
100// Timer Implementation
101//===----------------------------------------------------------------------===//
102
103void Timer::init(StringRef N) {
104 assert(TG == 0 && "Timer already initialized");
105 Name.assign(N.begin(), N.end());
106 Started = false;
107 TG = getDefaultTimerGroup();
108 TG->addTimer(*this);
109}
110
111void Timer::init(StringRef N, TimerGroup &tg) {
112 assert(TG == 0 && "Timer already initialized");
113 Name.assign(N.begin(), N.end());
114 Started = false;
115 TG = &tg;
116 TG->addTimer(*this);
117}
118
119Timer::~Timer() {
120 if (!TG) return; // Never initialized, or already cleared.
121 TG->removeTimer(*this);
122}
123
124static inline size_t getMemUsage() {
125 if (!TrackSpace) return 0;
126 return sys::Process::GetMallocUsage();
127}
128
129TimeRecord TimeRecord::getCurrentTime(bool Start) {
130 TimeRecord Result;
131 sys::TimeValue now(0,0), user(0,0), sys(0,0);
132
133 if (Start) {
134 Result.MemUsed = getMemUsage();
135 sys::Process::GetTimeUsage(now, user, sys);
136 } else {
137 sys::Process::GetTimeUsage(now, user, sys);
138 Result.MemUsed = getMemUsage();
139 }
140
141 Result.WallTime = now.seconds() + now.microseconds() / 1000000.0;
142 Result.UserTime = user.seconds() + user.microseconds() / 1000000.0;
143 Result.SystemTime = sys.seconds() + sys.microseconds() / 1000000.0;
144 return Result;
145}
146
147static ManagedStatic<std::vector<Timer*> > ActiveTimers;
148
149void Timer::startTimer() {
150 Started = true;
151 ActiveTimers->push_back(this);
152 Time -= TimeRecord::getCurrentTime(true);
153}
154
155void Timer::stopTimer() {
156 Time += TimeRecord::getCurrentTime(false);
157
158 if (ActiveTimers->back() == this) {
159 ActiveTimers->pop_back();
160 } else {
161 std::vector<Timer*>::iterator I =
162 std::find(ActiveTimers->begin(), ActiveTimers->end(), this);
163 assert(I != ActiveTimers->end() && "stop but no startTimer?");
164 ActiveTimers->erase(I);
165 }
166}
167
168static void printVal(double Val, double Total, raw_ostream &OS) {
169 if (Total < 1e-7) // Avoid dividing by zero.
170 OS << " ----- ";
171 else {
172 OS << " " << format("%7.4f", Val) << " (";
173 OS << format("%5.1f", Val*100/Total) << "%)";
174 }
175}
176
177void TimeRecord::print(const TimeRecord &Total, raw_ostream &OS) const {
178 if (Total.getUserTime())
179 printVal(getUserTime(), Total.getUserTime(), OS);
180 if (Total.getSystemTime())
181 printVal(getSystemTime(), Total.getSystemTime(), OS);
182 if (Total.getProcessTime())
183 printVal(getProcessTime(), Total.getProcessTime(), OS);
184 printVal(getWallTime(), Total.getWallTime(), OS);
185
186 OS << " ";
187
188 if (Total.getMemUsed())
189 OS << format("%9lld", (long long)getMemUsed()) << " ";
190}
191
192
193//===----------------------------------------------------------------------===//
194// NamedRegionTimer Implementation
195//===----------------------------------------------------------------------===//
196
197namespace {
198
199typedef StringMap<Timer> Name2TimerMap;
200
201class Name2PairMap {
202 StringMap<std::pair<TimerGroup*, Name2TimerMap> > Map;
203public:
204 ~Name2PairMap() {
205 for (StringMap<std::pair<TimerGroup*, Name2TimerMap> >::iterator
206 I = Map.begin(), E = Map.end(); I != E; ++I)
207 delete I->second.first;
208 }
209
210 Timer &get(StringRef Name, StringRef GroupName) {
211 sys::SmartScopedLock<true> L(*TimerLock);
212
213 std::pair<TimerGroup*, Name2TimerMap> &GroupEntry = Map[GroupName];
214
215 if (!GroupEntry.first)
216 GroupEntry.first = new TimerGroup(GroupName);
217
218 Timer &T = GroupEntry.second[Name];
219 if (!T.isInitialized())
220 T.init(Name, *GroupEntry.first);
221 return T;
222 }
223};
224
225}
226
227static ManagedStatic<Name2TimerMap> NamedTimers;
228static ManagedStatic<Name2PairMap> NamedGroupedTimers;
229
230static Timer &getNamedRegionTimer(StringRef Name) {
231 sys::SmartScopedLock<true> L(*TimerLock);
232
233 Timer &T = (*NamedTimers)[Name];
234 if (!T.isInitialized())
235 T.init(Name);
236 return T;
237}
238
|
244
245//===----------------------------------------------------------------------===//
246// TimerGroup Implementation
247//===----------------------------------------------------------------------===//
248
249/// TimerGroupList - This is the global list of TimerGroups, maintained by the
250/// TimerGroup ctor/dtor and is protected by the TimerLock lock.
251static TimerGroup *TimerGroupList = 0;
252
253TimerGroup::TimerGroup(StringRef name)
254 : Name(name.begin(), name.end()), FirstTimer(0) {
255
256 // Add the group to TimerGroupList.
257 sys::SmartScopedLock<true> L(*TimerLock);
258 if (TimerGroupList)
259 TimerGroupList->Prev = &Next;
260 Next = TimerGroupList;
261 Prev = &TimerGroupList;
262 TimerGroupList = this;
263}
264
265TimerGroup::~TimerGroup() {
266 // If the timer group is destroyed before the timers it owns, accumulate and
267 // print the timing data.
268 while (FirstTimer != 0)
269 removeTimer(*FirstTimer);
270
271 // Remove the group from the TimerGroupList.
272 sys::SmartScopedLock<true> L(*TimerLock);
273 *Prev = Next;
274 if (Next)
275 Next->Prev = Prev;
276}
277
278
279void TimerGroup::removeTimer(Timer &T) {
280 sys::SmartScopedLock<true> L(*TimerLock);
281
282 // If the timer was started, move its data to TimersToPrint.
283 if (T.Started)
284 TimersToPrint.push_back(std::make_pair(T.Time, T.Name));
285
286 T.TG = 0;
287
288 // Unlink the timer from our list.
289 *T.Prev = T.Next;
290 if (T.Next)
291 T.Next->Prev = T.Prev;
292
293 // Print the report when all timers in this group are destroyed if some of
294 // them were started.
295 if (FirstTimer != 0 || TimersToPrint.empty())
296 return;
297
298 raw_ostream *OutStream = CreateInfoOutputFile();
299 PrintQueuedTimers(*OutStream);
300 delete OutStream; // Close the file.
301}
302
303void TimerGroup::addTimer(Timer &T) {
304 sys::SmartScopedLock<true> L(*TimerLock);
305
306 // Add the timer to our list.
307 if (FirstTimer)
308 FirstTimer->Prev = &T.Next;
309 T.Next = FirstTimer;
310 T.Prev = &FirstTimer;
311 FirstTimer = &T;
312}
313
314void TimerGroup::PrintQueuedTimers(raw_ostream &OS) {
315 // Sort the timers in descending order by amount of time taken.
316 std::sort(TimersToPrint.begin(), TimersToPrint.end());
317
318 TimeRecord Total;
319 for (unsigned i = 0, e = TimersToPrint.size(); i != e; ++i)
320 Total += TimersToPrint[i].first;
321
322 // Print out timing header.
323 OS << "===" << std::string(73, '-') << "===\n";
324 // Figure out how many spaces to indent TimerGroup name.
325 unsigned Padding = (80-Name.length())/2;
326 if (Padding > 80) Padding = 0; // Don't allow "negative" numbers
327 OS.indent(Padding) << Name << '\n';
328 OS << "===" << std::string(73, '-') << "===\n";
329
330 // If this is not an collection of ungrouped times, print the total time.
331 // Ungrouped timers don't really make sense to add up. We still print the
332 // TOTAL line to make the percentages make sense.
333 if (this != DefaultTimerGroup) {
334 OS << " Total Execution Time: ";
335 OS << format("%5.4f", Total.getProcessTime()) << " seconds (";
336 OS << format("%5.4f", Total.getWallTime()) << " wall clock)\n";
337 }
338 OS << '\n';
339
340 if (Total.getUserTime())
341 OS << " ---User Time---";
342 if (Total.getSystemTime())
343 OS << " --System Time--";
344 if (Total.getProcessTime())
345 OS << " --User+System--";
346 OS << " ---Wall Time---";
347 if (Total.getMemUsed())
348 OS << " ---Mem---";
349 OS << " --- Name ---\n";
350
351 // Loop through all of the timing data, printing it out.
352 for (unsigned i = 0, e = TimersToPrint.size(); i != e; ++i) {
353 const std::pair<TimeRecord, std::string> &Entry = TimersToPrint[e-i-1];
354 Entry.first.print(Total, OS);
355 OS << Entry.second << '\n';
356 }
357
358 Total.print(Total, OS);
359 OS << "Total\n\n";
360 OS.flush();
361
362 TimersToPrint.clear();
363}
364
365/// print - Print any started timers in this group and zero them.
366void TimerGroup::print(raw_ostream &OS) {
367 sys::SmartScopedLock<true> L(*TimerLock);
368
369 // See if any of our timers were started, if so add them to TimersToPrint and
370 // reset them.
371 for (Timer *T = FirstTimer; T; T = T->Next) {
372 if (!T->Started) continue;
373 TimersToPrint.push_back(std::make_pair(T->Time, T->Name));
374
375 // Clear out the time.
376 T->Started = 0;
377 T->Time = TimeRecord();
378 }
379
380 // If any timers were started, print the group.
381 if (!TimersToPrint.empty())
382 PrintQueuedTimers(OS);
383}
384
385/// printAll - This static method prints all timers and clears them all out.
386void TimerGroup::printAll(raw_ostream &OS) {
387 sys::SmartScopedLock<true> L(*TimerLock);
388
389 for (TimerGroup *TG = TimerGroupList; TG; TG = TG->Next)
390 TG->print(OS);
391}
| 246
247//===----------------------------------------------------------------------===//
248// TimerGroup Implementation
249//===----------------------------------------------------------------------===//
250
251/// TimerGroupList - This is the global list of TimerGroups, maintained by the
252/// TimerGroup ctor/dtor and is protected by the TimerLock lock.
253static TimerGroup *TimerGroupList = 0;
254
255TimerGroup::TimerGroup(StringRef name)
256 : Name(name.begin(), name.end()), FirstTimer(0) {
257
258 // Add the group to TimerGroupList.
259 sys::SmartScopedLock<true> L(*TimerLock);
260 if (TimerGroupList)
261 TimerGroupList->Prev = &Next;
262 Next = TimerGroupList;
263 Prev = &TimerGroupList;
264 TimerGroupList = this;
265}
266
267TimerGroup::~TimerGroup() {
268 // If the timer group is destroyed before the timers it owns, accumulate and
269 // print the timing data.
270 while (FirstTimer != 0)
271 removeTimer(*FirstTimer);
272
273 // Remove the group from the TimerGroupList.
274 sys::SmartScopedLock<true> L(*TimerLock);
275 *Prev = Next;
276 if (Next)
277 Next->Prev = Prev;
278}
279
280
281void TimerGroup::removeTimer(Timer &T) {
282 sys::SmartScopedLock<true> L(*TimerLock);
283
284 // If the timer was started, move its data to TimersToPrint.
285 if (T.Started)
286 TimersToPrint.push_back(std::make_pair(T.Time, T.Name));
287
288 T.TG = 0;
289
290 // Unlink the timer from our list.
291 *T.Prev = T.Next;
292 if (T.Next)
293 T.Next->Prev = T.Prev;
294
295 // Print the report when all timers in this group are destroyed if some of
296 // them were started.
297 if (FirstTimer != 0 || TimersToPrint.empty())
298 return;
299
300 raw_ostream *OutStream = CreateInfoOutputFile();
301 PrintQueuedTimers(*OutStream);
302 delete OutStream; // Close the file.
303}
304
305void TimerGroup::addTimer(Timer &T) {
306 sys::SmartScopedLock<true> L(*TimerLock);
307
308 // Add the timer to our list.
309 if (FirstTimer)
310 FirstTimer->Prev = &T.Next;
311 T.Next = FirstTimer;
312 T.Prev = &FirstTimer;
313 FirstTimer = &T;
314}
315
316void TimerGroup::PrintQueuedTimers(raw_ostream &OS) {
317 // Sort the timers in descending order by amount of time taken.
318 std::sort(TimersToPrint.begin(), TimersToPrint.end());
319
320 TimeRecord Total;
321 for (unsigned i = 0, e = TimersToPrint.size(); i != e; ++i)
322 Total += TimersToPrint[i].first;
323
324 // Print out timing header.
325 OS << "===" << std::string(73, '-') << "===\n";
326 // Figure out how many spaces to indent TimerGroup name.
327 unsigned Padding = (80-Name.length())/2;
328 if (Padding > 80) Padding = 0; // Don't allow "negative" numbers
329 OS.indent(Padding) << Name << '\n';
330 OS << "===" << std::string(73, '-') << "===\n";
331
332 // If this is not an collection of ungrouped times, print the total time.
333 // Ungrouped timers don't really make sense to add up. We still print the
334 // TOTAL line to make the percentages make sense.
335 if (this != DefaultTimerGroup) {
336 OS << " Total Execution Time: ";
337 OS << format("%5.4f", Total.getProcessTime()) << " seconds (";
338 OS << format("%5.4f", Total.getWallTime()) << " wall clock)\n";
339 }
340 OS << '\n';
341
342 if (Total.getUserTime())
343 OS << " ---User Time---";
344 if (Total.getSystemTime())
345 OS << " --System Time--";
346 if (Total.getProcessTime())
347 OS << " --User+System--";
348 OS << " ---Wall Time---";
349 if (Total.getMemUsed())
350 OS << " ---Mem---";
351 OS << " --- Name ---\n";
352
353 // Loop through all of the timing data, printing it out.
354 for (unsigned i = 0, e = TimersToPrint.size(); i != e; ++i) {
355 const std::pair<TimeRecord, std::string> &Entry = TimersToPrint[e-i-1];
356 Entry.first.print(Total, OS);
357 OS << Entry.second << '\n';
358 }
359
360 Total.print(Total, OS);
361 OS << "Total\n\n";
362 OS.flush();
363
364 TimersToPrint.clear();
365}
366
367/// print - Print any started timers in this group and zero them.
368void TimerGroup::print(raw_ostream &OS) {
369 sys::SmartScopedLock<true> L(*TimerLock);
370
371 // See if any of our timers were started, if so add them to TimersToPrint and
372 // reset them.
373 for (Timer *T = FirstTimer; T; T = T->Next) {
374 if (!T->Started) continue;
375 TimersToPrint.push_back(std::make_pair(T->Time, T->Name));
376
377 // Clear out the time.
378 T->Started = 0;
379 T->Time = TimeRecord();
380 }
381
382 // If any timers were started, print the group.
383 if (!TimersToPrint.empty())
384 PrintQueuedTimers(OS);
385}
386
387/// printAll - This static method prints all timers and clears them all out.
388void TimerGroup::printAll(raw_ostream &OS) {
389 sys::SmartScopedLock<true> L(*TimerLock);
390
391 for (TimerGroup *TG = TimerGroupList; TG; TG = TG->Next)
392 TG->print(OS);
393}
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