//===-- Timer.cpp - Interval Timing Support -------------------------------===//
//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
// Interval Timing implementation.
//
//===----------------------------------------------------------------------===//
-#include "Support/Timer.h"
-#include "Support/CommandLine.h"
-#include <sys/resource.h>
-#include <sys/time.h>
-#include <sys/unistd.h>
-#include <unistd.h>
-#include <malloc.h>
-#include <stdio.h>
-#include <iostream>
+#include "llvm/Support/Timer.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/Streams.h"
+#include "llvm/System/Process.h"
#include <algorithm>
+#include <fstream>
#include <functional>
+#include <map>
+using namespace llvm;
+
+// GetLibSupportInfoOutputFile - Return a file stream to print our output on.
+namespace llvm { extern std::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
+// '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() {
+ return *LibSupportInfoOutputFilename;
+}
namespace {
cl::opt<bool>
TrackSpace("track-memory", cl::desc("Enable -time-passes memory "
"tracking (this may be slow)"),
cl::Hidden);
-}
-// getNumBytesToNotCount - This function is supposed to return the number of
-// bytes that are to be considered not allocated, even though malloc thinks they
-// are allocated.
-//
-static unsigned getNumBytesToNotCount();
+ 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() {
}
}
-static long getMemUsage() {
- if (TrackSpace) {
- struct mallinfo MI = mallinfo();
- return MI.uordblks/*+MI.hblkhd-getNumBytesToNotCount()*/;
- } else {
- return 0;
- }
+static inline size_t getMemUsage() {
+ if (TrackSpace)
+ return sys::Process::GetMallocUsage();
+ return 0;
}
struct TimeRecord {
double Elapsed, UserTime, SystemTime;
- long MemUsed;
+ ssize_t MemUsed;
};
static TimeRecord getTimeRecord(bool Start) {
- struct rusage RU;
- struct timeval T;
- long MemUsed;
+ TimeRecord Result;
+
+ sys::TimeValue now(0,0);
+ sys::TimeValue user(0,0);
+ sys::TimeValue sys(0,0);
+
+ ssize_t MemUsed = 0;
if (Start) {
MemUsed = getMemUsage();
- if (getrusage(RUSAGE_SELF, &RU))
- perror("getrusage call failed: -time-passes info incorrect!");
- }
- gettimeofday(&T, 0);
-
- if (!Start) {
+ sys::Process::GetTimeUsage(now,user,sys);
+ } else {
+ sys::Process::GetTimeUsage(now,user,sys);
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;
+ Result.Elapsed = now.seconds() + now.microseconds() / 1000000.0;
+ Result.UserTime = user.seconds() + user.microseconds() / 1000000.0;
+ Result.SystemTime = sys.seconds() + sys.microseconds() / 1000000.0;
+ Result.MemUsed = MemUsed;
return Result;
}
-static std::vector<Timer*> ActiveTimers;
+static ManagedStatic<std::vector<Timer*> > ActiveTimers;
void Timer::startTimer() {
Started = true;
SystemTime -= TR.SystemTime;
MemUsed -= TR.MemUsed;
PeakMemBase = TR.MemUsed;
- ActiveTimers.push_back(this);
+ ActiveTimers->push_back(this);
}
void Timer::stopTimer() {
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() {
- long MemUsed = getMemUsage();
+ 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 ManagedStatic<std::map<std::string, Timer> > NamedTimers;
+
+static Timer &getNamedRegionTimer(const std::string &Name) {
+ std::map<std::string, Timer>::iterator I = NamedTimers->lower_bound(Name);
+ if (I != NamedTimers->end() && I->first == Name)
+ return I->second;
+
+ return NamedTimers->insert(I, std::make_pair(Name, Timer(Name)))->second;
+}
+
+NamedRegionTimer::NamedRegionTimer(const std::string &Name)
+ : TimeRegion(getNamedRegionTimer(Name)) {}
+
//===----------------------------------------------------------------------===//
// TimerGroup Implementation
//===----------------------------------------------------------------------===//
-static void printVal(double Val, double Total) {
+// 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...
- fprintf(stderr, " ----- ");
- else
- fprintf(stderr, " %7.4f (%5.1f%%)", Val, Val*100/Total);
+ OS << " ----- ";
+ else {
+ OS << " ";
+ printAlignedFP(Val, 4, 7, OS);
+ OS << " (";
+ printAlignedFP(Val*100/Total, 1, 5, OS);
+ OS << "%)";
+ }
}
-void Timer::print(const Timer &Total) {
+void Timer::print(const Timer &Total, std::ostream &OS) {
if (Total.UserTime)
- printVal(UserTime, Total.UserTime);
+ printVal(UserTime, Total.UserTime, OS);
if (Total.SystemTime)
- printVal(SystemTime, Total.SystemTime);
+ printVal(SystemTime, Total.SystemTime, OS);
if (Total.getProcessTime())
- printVal(getProcessTime(), Total.getProcessTime());
- printVal(Elapsed, Total.Elapsed);
-
- fprintf(stderr, " ");
+ printVal(getProcessTime(), Total.getProcessTime(), OS);
+ printVal(Elapsed, Total.Elapsed, OS);
+
+ OS << " ";
- if (Total.MemUsed)
- fprintf(stderr, " %8ld ", MemUsed);
+ if (Total.MemUsed) {
+ OS.width(9);
+ OS << MemUsed << " ";
+ }
if (Total.PeakMem) {
- if (PeakMem)
- fprintf(stderr, " %8ld ", PeakMem);
- else
- fprintf(stderr, " ");
+ if (PeakMem) {
+ OS.width(9);
+ OS << PeakMem << " ";
+ } else
+ OS << " ";
}
- std::cerr << Name << "\n";
+ OS << Name << "\n";
Started = false; // Once printed, don't print again
}
+// GetLibSupportInfoOutputFile - Return a file stream to print our output on...
+std::ostream *
+llvm::GetLibSupportInfoOutputFile() {
+ std::string &LibSupportInfoOutputFilename = getLibSupportInfoOutputFilename();
+ if (LibSupportInfoOutputFilename.empty())
+ return cerr.stream();
+ if (LibSupportInfoOutputFilename == "-")
+ return cout.stream();
+
+ std::ostream *Result = new std::ofstream(LibSupportInfoOutputFilename.c_str(),
+ std::ios::app);
+ if (!Result->good()) {
+ cerr << "Error opening info-output-file '"
+ << LibSupportInfoOutputFilename << " for appending!\n";
+ delete Result;
+ return cerr.stream();
+ }
+ return Result;
+}
+
void TimerGroup::removeTimer() {
if (--NumTimers == 0 && !TimersToPrint.empty()) { // Print timing report...
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...
- std::cerr << "===" << std::string(73, '-') << "===\n"
- << std::string(Padding, ' ') << Name << "\n"
- << "===" << std::string(73, '-')
- << "===\n Total Execution Time: " << Total.getProcessTime()
- << " seconds (" << Total.getWallTime()
- << " wall clock)\n\n";
+ *OutStream << "===" << std::string(73, '-') << "===\n"
+ << std::string(Padding, ' ') << Name << "\n"
+ << "===" << std::string(73, '-')
+ << "===\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: ";
+
+ printAlignedFP(Total.getProcessTime(), 4, 5, *OutStream);
+ *OutStream << " seconds (";
+ printAlignedFP(Total.getWallTime(), 4, 5, *OutStream);
+ *OutStream << " wall clock)\n";
+ }
+ *OutStream << "\n";
if (Total.UserTime)
- std::cerr << " ---User Time---";
+ *OutStream << " ---User Time---";
if (Total.SystemTime)
- std::cerr << " --System Time--";
+ *OutStream << " --System Time--";
if (Total.getProcessTime())
- std::cerr << " --User+System--";
- std::cerr << " ---Wall Time---";
+ *OutStream << " --User+System--";
+ *OutStream << " ---Wall Time---";
if (Total.getMemUsed())
- std::cerr << " ---Mem---";
+ *OutStream << " ---Mem---";
if (Total.getPeakMem())
- std::cerr << " -PeakMem-";
- std::cerr << " --- Name ---\n";
-
+ *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);
-
- Total.print(Total);
- std::cerr << std::endl; // Flush output
+ TimersToPrint[i].print(Total, *OutStream);
+
+ Total.print(Total, *OutStream);
+ *OutStream << std::endl; // Flush output
}
--NumTimers;
TimersToPrint.clear();
+
+ if (OutStream != cerr.stream() && OutStream != cout.stream())
+ delete OutStream; // Close the file...
}
// Delete default timer group!
}
}
-
-
-#if (__GNUC__ == 3) && (__GNUC_MINOR__ == 2) && (__GNUC_PATCHLEVEL__ == 0)
-// If we have GCC 3.2.0, we can calculate pool allocation bookkeeping info
-#define HAVE_POOL
-extern "C" {
- // Taken from GCC 3.2's stl_alloc.h file:
- enum {_ALIGN = 8, _MAX_BYTES = 128, NFREE = _MAX_BYTES / _ALIGN};
- struct FreeList { FreeList *Next; };
-
- FreeList *_ZNSt24__default_alloc_templateILb1ELi0EE12_S_free_listE[NFREE];
- char *_ZNSt24__default_alloc_templateILb1ELi0EE13_S_start_freeE;
- char *_ZNSt24__default_alloc_templateILb1ELi0EE11_S_end_freeE;
- size_t _ZNSt24__default_alloc_templateILb1ELi0EE12_S_heap_sizeE;
-
- // Make the symbols possible to use...
- FreeList* (&TheFreeList)[NFREE] = _ZNSt24__default_alloc_templateILb1ELi0EE12_S_free_listE;
- char * &StartFree = _ZNSt24__default_alloc_templateILb1ELi0EE13_S_start_freeE;
- char * &EndFree = _ZNSt24__default_alloc_templateILb1ELi0EE11_S_end_freeE;
- size_t &HeapSize = _ZNSt24__default_alloc_templateILb1ELi0EE12_S_heap_sizeE;
-}
-#endif
-
-// getNumBytesToNotCount - This function is supposed to return the number of
-// bytes that are to be considered not allocated, even though malloc thinks they
-// are allocated.
-//
-static unsigned getNumBytesToNotCount() {
-#ifdef HAVE_POOL
- // If we have GCC 3.2.0, we can subtract off pool allocation bookkeeping info
-
- // Size of the free slab section...
- unsigned FreePoolMem = (unsigned)(EndFree-StartFree);
-
- // Walk all of the free lists, adding memory to the free counter whenever we
- // have a free bucket.
- for (unsigned i = 0; i != NFREE; ++i) {
- unsigned NumEntries = 0;
- for (FreeList *FL = TheFreeList[i]; FL; ++NumEntries, FL = FL->Next)
- /*empty*/ ;
-
-#if 0
- if (NumEntries)
- std::cerr << " For Size[" << (i+1)*_ALIGN << "]: " << NumEntries
- << " Free entries\n";
-#endif
- FreePoolMem += NumEntries*(i+1)*_ALIGN;
- }
- return FreePoolMem;
-
-#else
-#warning "Don't know how to avoid pool allocation accounting overhead for this"
-#warning " compiler: Space usage numbers (with -time-passes) may be off!"
- return 0;
-#endif
-}