+++ /dev/null
-//===-- Timer.cpp - Interval Timing Support -------------------------------===//
-//
-// Interval Timing implementation.
-//
-//===----------------------------------------------------------------------===//
-
-#include "Support/Timer.h"
-#include "Support/CommandLine.h"
-
-#include "Config/sys/resource.h"
-#include "Config/sys/time.h"
-#include "Config/unistd.h"
-#include "Config/malloc.h"
-#include "Config/stdio.h"
-#include <iostream>
-#include <algorithm>
-#include <functional>
-#include <fstream>
-
-// 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
-// '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 std::string &getLibSupportInfoOutputFilename() {
- static std::string *LibSupportInfoOutputFilename = new std::string();
- return *LibSupportInfoOutputFilename;
-}
-
-namespace {
-#ifdef HAVE_MALLINFO
- cl::opt<bool>
- TrackSpace("track-memory", cl::desc("Enable -time-passes memory "
- "tracking (this may be slow)"),
- cl::Hidden);
-#endif
-
- 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");
-}
-
-Timer::Timer(const std::string &N)
- : Elapsed(0), UserTime(0), SystemTime(0), MemUsed(0), PeakMem(0), Name(N),
- Started(false), TG(getDefaultTimerGroup()) {
- TG->addTimer();
-}
-
-Timer::Timer(const std::string &N, TimerGroup &tg)
- : Elapsed(0), UserTime(0), SystemTime(0), MemUsed(0), PeakMem(0), Name(N),
- Started(false), TG(&tg) {
- TG->addTimer();
-}
-
-Timer::Timer(const Timer &T) {
- TG = T.TG;
- if (TG) TG->addTimer();
- operator=(T);
-}
-
-
-// Copy ctor, initialize with no TG member.
-Timer::Timer(bool, const Timer &T) {
- TG = T.TG; // Avoid assertion in operator=
- operator=(T); // Copy contents
- TG = 0;
-}
-
-
-Timer::~Timer() {
- if (TG) {
- if (Started) {
- Started = false;
- TG->addTimerToPrint(*this);
- }
- TG->removeTimer();
- }
-}
-
-static long getMemUsage() {
-#ifdef HAVE_MALLINFO
- if (TrackSpace) {
- struct mallinfo MI = mallinfo();
- return MI.uordblks/*+MI.hblkhd*/;
- }
-#endif
- return 0;
-}
-
-struct TimeRecord {
- double Elapsed, UserTime, SystemTime;
- long MemUsed;
-};
-
-static TimeRecord getTimeRecord(bool Start) {
- struct rusage RU;
- struct timeval T;
- long MemUsed = 0;
- if (Start) {
- MemUsed = getMemUsage();
- if (getrusage(RUSAGE_SELF, &RU))
- perror("getrusage call failed: -time-passes info incorrect!");
- }
- gettimeofday(&T, 0);
-
- if (!Start) {
- MemUsed = getMemUsage();
- if (getrusage(RUSAGE_SELF, &RU))
- perror("getrusage call failed: -time-passes info incorrect!");
- }
-
- TimeRecord Result;
- Result.Elapsed = T.tv_sec + T.tv_usec/1000000.0;
- Result.UserTime = RU.ru_utime.tv_sec + RU.ru_utime.tv_usec/1000000.0;
- Result.SystemTime = RU.ru_stime.tv_sec + RU.ru_stime.tv_usec/1000000.0;
- Result.MemUsed = MemUsed;
-
- return Result;
-}
-
-static std::vector<Timer*> ActiveTimers;
-
-void Timer::startTimer() {
- Started = true;
- 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() {
- TimeRecord TR = getTimeRecord(false);
- Elapsed += TR.Elapsed;
- UserTime += TR.UserTime;
- SystemTime += TR.SystemTime;
- MemUsed += TR.MemUsed;
-
- 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);
- }
-}
-
-void Timer::sum(const Timer &T) {
- Elapsed += T.Elapsed;
- UserTime += T.UserTime;
- SystemTime += T.SystemTime;
- MemUsed += T.MemUsed;
- PeakMem += T.PeakMem;
-}
-
-/// addPeakMemoryMeasurement - This method should be called whenever memory
-/// usage needs to be checked. It adds a peak memory measurement to the
-/// currently active timers, which will be printed when the timer group prints
-///
-void Timer::addPeakMemoryMeasurement() {
- long MemUsed = getMemUsage();
-
- for (std::vector<Timer*>::iterator I = ActiveTimers.begin(),
- E = ActiveTimers.end(); I != E; ++I)
- (*I)->PeakMem = std::max((*I)->PeakMem, MemUsed-(*I)->PeakMemBase);
-}
-
-
-//===----------------------------------------------------------------------===//
-// 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) {
- 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 << "%)";
- }
-}
-
-void Timer::print(const Timer &Total, std::ostream &OS) {
- if (Total.UserTime)
- printVal(UserTime, Total.UserTime, OS);
- if (Total.SystemTime)
- printVal(SystemTime, Total.SystemTime, OS);
- if (Total.getProcessTime())
- printVal(getProcessTime(), Total.getProcessTime(), OS);
- printVal(Elapsed, Total.Elapsed, OS);
-
- OS << " ";
-
- if (Total.MemUsed) {
- OS.width(9);
- OS << MemUsed << " ";
- }
- if (Total.PeakMem) {
- if (PeakMem) {
- OS.width(9);
- OS << PeakMem << " ";
- } else
- OS << " ";
- }
- OS << Name << "\n";
-
- Started = false; // Once printed, don't print again
-}
-
-// GetLibSupportInfoOutputFile - Return a file stream to print our output on...
-std::ostream *GetLibSupportInfoOutputFile() {
- std::string &LibSupportInfoOutputFilename = getLibSupportInfoOutputFilename();
- if (LibSupportInfoOutputFilename.empty())
- return &std::cerr;
- 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;
-}
-
-
-void TimerGroup::removeTimer() {
- 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(),
- std::greater<Timer>());
-
- // Figure out how many spaces to indent TimerGroup name...
- unsigned Padding = (80-Name.length())/2;
- if (Padding > 80) Padding = 0; // Don't allow "negative" numbers
-
- std::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: ";
-
- printAlignedFP(Total.getProcessTime(), 4, 5, *OutStream);
- *OutStream << " seconds (";
- printAlignedFP(Total.getWallTime(), 4, 5, *OutStream);
- *OutStream << " wall clock)\n\n";
-
- if (Total.UserTime)
- *OutStream << " ---User Time---";
- if (Total.SystemTime)
- *OutStream << " --System Time--";
- if (Total.getProcessTime())
- *OutStream << " --User+System--";
- *OutStream << " ---Wall Time---";
- if (Total.getMemUsed())
- *OutStream << " ---Mem---";
- 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
- }
- --NumTimers;
-
- TimersToPrint.clear();
-
- if (OutStream != &std::cerr && OutStream != &std::cout)
- delete OutStream; // Close the file...
- }
-
- // Delete default timer group!
- if (NumTimers == 0 && this == DefaultTimerGroup) {
- delete DefaultTimerGroup;
- DefaultTimerGroup = 0;
- }
-}
projects / oota-llvm.git / blobdiff