//===-- Timer.cpp - Interval Timing Support -------------------------------===//
-//
+//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
//===----------------------------------------------------------------------===//
//
// Interval Timing implementation.
//
//===----------------------------------------------------------------------===//
+#include "llvm/Support/Debug.h"
#include "llvm/Support/Timer.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/Format.h"
#include "llvm/System/Process.h"
#include <algorithm>
-#include <fstream>
#include <functional>
-#include <iostream>
#include <map>
-
using namespace llvm;
// GetLibSupportInfoOutputFile - Return a file stream to print our output on.
-namespace llvm { extern std::ostream *GetLibSupportInfoOutputFile(); }
+namespace llvm { extern raw_ostream *GetLibSupportInfoOutputFile(); }
// getLibSupportInfoOutputFilename - This ugly hack is brought to you courtesy
// of constructor/destructor ordering being unspecified by C++. Basically the
-// problem is that a Statistic<> object gets destroyed, which ends up calling
+// problem is that a Statistic object gets destroyed, which ends up calling
// 'GetLibSupportInfoOutputFile()' (below), which calls this function.
// LibSupportInfoOutputFilename used to be a global variable, but sometimes it
// would get destroyed before the Statistic, causing havoc to ensue. We "fix"
// this by creating the string the first time it is needed and never destroying
// it.
+static ManagedStatic<std::string> LibSupportInfoOutputFilename;
static std::string &getLibSupportInfoOutputFilename() {
- static std::string *LibSupportInfoOutputFilename = new std::string();
return *LibSupportInfoOutputFilename;
}
+static ManagedStatic<sys::SmartMutex<true> > TimerLock;
+
namespace {
- cl::opt<bool>
+ static cl::opt<bool>
TrackSpace("track-memory", cl::desc("Enable -time-passes memory "
"tracking (this may be slow)"),
cl::Hidden);
- cl::opt<std::string, true>
+ static cl::opt<std::string, true>
InfoOutputFilename("info-output-file", cl::value_desc("filename"),
cl::desc("File to append -stats and -timer output to"),
cl::Hidden, cl::location(getLibSupportInfoOutputFilename()));
static TimerGroup *DefaultTimerGroup = 0;
static TimerGroup *getDefaultTimerGroup() {
- if (DefaultTimerGroup) return DefaultTimerGroup;
- return DefaultTimerGroup = new TimerGroup("Miscellaneous Ungrouped Timers");
+ TimerGroup* tmp = DefaultTimerGroup;
+ sys::MemoryFence();
+ if (!tmp) {
+ llvm_acquire_global_lock();
+ tmp = DefaultTimerGroup;
+ if (!tmp) {
+ tmp = new TimerGroup("Miscellaneous Ungrouped Timers");
+ sys::MemoryFence();
+ DefaultTimerGroup = tmp;
+ }
+ llvm_release_global_lock();
+ }
+
+ return tmp;
}
Timer::Timer(const std::string &N)
struct TimeRecord {
double Elapsed, UserTime, SystemTime;
- size_t MemUsed;
+ ssize_t MemUsed;
};
static TimeRecord getTimeRecord(bool Start) {
sys::TimeValue user(0,0);
sys::TimeValue sys(0,0);
- size_t MemUsed = 0;
+ ssize_t MemUsed = 0;
if (Start) {
- sys::Process::GetTimeUsage(now,user,sys);
MemUsed = getMemUsage();
+ sys::Process::GetTimeUsage(now,user,sys);
} else {
- MemUsed = getMemUsage();
sys::Process::GetTimeUsage(now,user,sys);
+ MemUsed = getMemUsage();
}
Result.Elapsed = now.seconds() + now.microseconds() / 1000000.0;
return Result;
}
-static std::vector<Timer*> ActiveTimers;
+static ManagedStatic<std::vector<Timer*> > ActiveTimers;
void Timer::startTimer() {
+ sys::SmartScopedLock<true> L(*TimerLock);
Started = true;
+ ActiveTimers->push_back(this);
TimeRecord TR = getTimeRecord(true);
Elapsed -= TR.Elapsed;
UserTime -= TR.UserTime;
SystemTime -= TR.SystemTime;
MemUsed -= TR.MemUsed;
PeakMemBase = TR.MemUsed;
- ActiveTimers.push_back(this);
}
void Timer::stopTimer() {
+ sys::SmartScopedLock<true> L(*TimerLock);
TimeRecord TR = getTimeRecord(false);
Elapsed += TR.Elapsed;
UserTime += TR.UserTime;
SystemTime += TR.SystemTime;
MemUsed += TR.MemUsed;
- if (ActiveTimers.back() == this) {
- ActiveTimers.pop_back();
+ if (ActiveTimers->back() == this) {
+ ActiveTimers->pop_back();
} else {
std::vector<Timer*>::iterator I =
- std::find(ActiveTimers.begin(), ActiveTimers.end(), this);
- assert(I != ActiveTimers.end() && "stop but no startTimer?");
- ActiveTimers.erase(I);
+ std::find(ActiveTimers->begin(), ActiveTimers->end(), this);
+ assert(I != ActiveTimers->end() && "stop but no startTimer?");
+ ActiveTimers->erase(I);
}
}
/// currently active timers, which will be printed when the timer group prints
///
void Timer::addPeakMemoryMeasurement() {
+ sys::SmartScopedLock<true> L(*TimerLock);
size_t MemUsed = getMemUsage();
- for (std::vector<Timer*>::iterator I = ActiveTimers.begin(),
- E = ActiveTimers.end(); I != E; ++I)
+ for (std::vector<Timer*>::iterator I = ActiveTimers->begin(),
+ E = ActiveTimers->end(); I != E; ++I)
(*I)->PeakMem = std::max((*I)->PeakMem, MemUsed-(*I)->PeakMemBase);
}
// NamedRegionTimer Implementation
//===----------------------------------------------------------------------===//
-static Timer &getNamedRegionTimer(const std::string &Name) {
- static std::map<std::string, Timer> NamedTimers;
+namespace {
+
+typedef std::map<std::string, Timer> Name2Timer;
+typedef std::map<std::string, std::pair<TimerGroup, Name2Timer> > Name2Pair;
+
+}
- std::map<std::string, Timer>::iterator I = NamedTimers.lower_bound(Name);
- if (I != NamedTimers.end() && I->first == Name)
+static ManagedStatic<Name2Timer> NamedTimers;
+
+static ManagedStatic<Name2Pair> NamedGroupedTimers;
+
+static Timer &getNamedRegionTimer(const std::string &Name) {
+ sys::SmartScopedLock<true> L(*TimerLock);
+ Name2Timer::iterator I = NamedTimers->find(Name);
+ if (I != NamedTimers->end())
return I->second;
- return NamedTimers.insert(I, std::make_pair(Name, Timer(Name)))->second;
+ return NamedTimers->insert(I, std::make_pair(Name, Timer(Name)))->second;
+}
+
+static Timer &getNamedRegionTimer(const std::string &Name,
+ const std::string &GroupName) {
+ sys::SmartScopedLock<true> L(*TimerLock);
+
+ Name2Pair::iterator I = NamedGroupedTimers->find(GroupName);
+ if (I == NamedGroupedTimers->end()) {
+ TimerGroup TG(GroupName);
+ std::pair<TimerGroup, Name2Timer> Pair(TG, Name2Timer());
+ I = NamedGroupedTimers->insert(I, std::make_pair(GroupName, Pair));
+ }
+
+ Name2Timer::iterator J = I->second.second.find(Name);
+ if (J == I->second.second.end())
+ J = I->second.second.insert(J,
+ std::make_pair(Name,
+ Timer(Name,
+ I->second.first)));
+
+ return J->second;
}
NamedRegionTimer::NamedRegionTimer(const std::string &Name)
: TimeRegion(getNamedRegionTimer(Name)) {}
+NamedRegionTimer::NamedRegionTimer(const std::string &Name,
+ const std::string &GroupName)
+ : TimeRegion(getNamedRegionTimer(Name, GroupName)) {}
//===----------------------------------------------------------------------===//
// TimerGroup Implementation
//===----------------------------------------------------------------------===//
-// printAlignedFP - Simulate the printf "%A.Bf" format, where A is the
-// TotalWidth size, and B is the AfterDec size.
-//
-static void printAlignedFP(double Val, unsigned AfterDec, unsigned TotalWidth,
- std::ostream &OS) {
- assert(TotalWidth >= AfterDec+1 && "Bad FP Format!");
- OS.width(TotalWidth-AfterDec-1);
- char OldFill = OS.fill();
- OS.fill(' ');
- OS << (int)Val; // Integer part;
- OS << ".";
- OS.width(AfterDec);
- OS.fill('0');
- unsigned ResultFieldSize = 1;
- while (AfterDec--) ResultFieldSize *= 10;
- OS << (int)(Val*ResultFieldSize) % ResultFieldSize;
- OS.fill(OldFill);
-}
-static void printVal(double Val, double Total, std::ostream &OS) {
+static void printVal(double Val, double Total, raw_ostream &OS) {
if (Total < 1e-7) // Avoid dividing by zero...
OS << " ----- ";
else {
- OS << " ";
- printAlignedFP(Val, 4, 7, OS);
- OS << " (";
- printAlignedFP(Val*100/Total, 1, 5, OS);
- OS << "%)";
+ OS << " " << format("%7.4f", Val) << " (";
+ OS << format("%5.1f", Val*100/Total) << "%)";
}
}
-void Timer::print(const Timer &Total, std::ostream &OS) {
+void Timer::print(const Timer &Total, raw_ostream &OS) {
+ sys::SmartScopedLock<true> L(*TimerLock);
if (Total.UserTime)
printVal(UserTime, Total.UserTime, OS);
if (Total.SystemTime)
if (Total.getProcessTime())
printVal(getProcessTime(), Total.getProcessTime(), OS);
printVal(Elapsed, Total.Elapsed, OS);
-
+
OS << " ";
if (Total.MemUsed) {
- OS.width(9);
- OS << MemUsed << " ";
+ OS << format("%9lld", (long long)MemUsed) << " ";
}
if (Total.PeakMem) {
if (PeakMem) {
- OS.width(9);
- OS << PeakMem << " ";
+ OS << format("%9lld", (long long)PeakMem) << " ";
} else
OS << " ";
}
}
// GetLibSupportInfoOutputFile - Return a file stream to print our output on...
-std::ostream *
+raw_ostream *
llvm::GetLibSupportInfoOutputFile() {
std::string &LibSupportInfoOutputFilename = getLibSupportInfoOutputFilename();
if (LibSupportInfoOutputFilename.empty())
- return &std::cerr;
+ return &errs();
if (LibSupportInfoOutputFilename == "-")
- return &std::cout;
-
- std::ostream *Result = new std::ofstream(LibSupportInfoOutputFilename.c_str(),
- std::ios::app);
- if (!Result->good()) {
- std::cerr << "Error opening info-output-file '"
- << LibSupportInfoOutputFilename << " for appending!\n";
- delete Result;
- return &std::cerr;
- }
- return Result;
+ return &outs();
+
+
+ std::string Error;
+ raw_ostream *Result = new raw_fd_ostream(LibSupportInfoOutputFilename.c_str(),
+ Error, raw_fd_ostream::F_Append);
+ if (Error.empty())
+ return Result;
+
+ errs() << "Error opening info-output-file '"
+ << LibSupportInfoOutputFilename << " for appending!\n";
+ delete Result;
+ return &errs();
}
void TimerGroup::removeTimer() {
+ sys::SmartScopedLock<true> L(*TimerLock);
if (--NumTimers == 0 && !TimersToPrint.empty()) { // Print timing report...
// Sort the timers in descending order by amount of time taken...
std::sort(TimersToPrint.begin(), TimersToPrint.end(),
unsigned Padding = (80-Name.length())/2;
if (Padding > 80) Padding = 0; // Don't allow "negative" numbers
- std::ostream *OutStream = GetLibSupportInfoOutputFile();
+ raw_ostream *OutStream = GetLibSupportInfoOutputFile();
++NumTimers;
{ // Scope to contain Total timer... don't allow total timer to drop us to
// zero timers...
Timer Total("TOTAL");
-
+
for (unsigned i = 0, e = TimersToPrint.size(); i != e; ++i)
Total.sum(TimersToPrint[i]);
-
+
// Print out timing header...
*OutStream << "===" << std::string(73, '-') << "===\n"
<< std::string(Padding, ' ') << Name << "\n"
<< "===" << std::string(73, '-')
- << "===\n Total Execution Time: ";
+ << "===\n";
- printAlignedFP(Total.getProcessTime(), 4, 5, *OutStream);
- *OutStream << " seconds (";
- printAlignedFP(Total.getWallTime(), 4, 5, *OutStream);
- *OutStream << " wall clock)\n\n";
+ // If this is not an collection of ungrouped times, print the total time.
+ // Ungrouped timers don't really make sense to add up. We still print the
+ // TOTAL line to make the percentages make sense.
+ if (this != DefaultTimerGroup) {
+ *OutStream << " Total Execution Time: ";
+
+ *OutStream << format("%5.4f", Total.getProcessTime()) << " seconds (";
+ *OutStream << format("%5.4f", Total.getWallTime()) << " wall clock)\n";
+ }
+ *OutStream << "\n";
if (Total.UserTime)
*OutStream << " ---User Time---";
if (Total.getPeakMem())
*OutStream << " -PeakMem-";
*OutStream << " --- Name ---\n";
-
+
// Loop through all of the timing data, printing it out...
for (unsigned i = 0, e = TimersToPrint.size(); i != e; ++i)
TimersToPrint[i].print(Total, *OutStream);
-
+
Total.print(Total, *OutStream);
- *OutStream << std::endl; // Flush output
+ *OutStream << '\n';
+ OutStream->flush();
}
--NumTimers;
TimersToPrint.clear();
- if (OutStream != &std::cerr && OutStream != &std::cout)
+ if (OutStream != &errs() && OutStream != &outs() && OutStream != &dbgs())
delete OutStream; // Close the file...
}
+}
- // Delete default timer group!
- if (NumTimers == 0 && this == DefaultTimerGroup) {
- delete DefaultTimerGroup;
- DefaultTimerGroup = 0;
- }
+void TimerGroup::addTimer() {
+ sys::SmartScopedLock<true> L(*TimerLock);
+ ++NumTimers;
+}
+
+void TimerGroup::addTimerToPrint(const Timer &T) {
+ sys::SmartScopedLock<true> L(*TimerLock);
+ TimersToPrint.push_back(Timer(true, T));
}
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