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- Changed Linux to use clock_gettime for profiling instead of rdtsc. This

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avoids potential erroneous results on multicore and variable speed
  processors. Windows will need to be updated accordingly.



SVN r1142 (trunk)
This commit is contained in:
Randy Heit 2008-08-10 03:25:08 +00:00
commit ad96225213
21 changed files with 399 additions and 540 deletions
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40
src/d_main.cpp
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@ -479,8 +479,10 @@ void D_Display ()
if (nodrawers)
return; // for comparative timing / profiling
cycle_t cycles = 0;
clock (cycles);
cycle_t cycles;
cycles.Reset();
cycles.Clock();
if (players[consoleplayer].camera == NULL)
{
@ -725,7 +727,7 @@ void D_Display ()
Net_WriteByte (DEM_WIPEOFF);
}
unclock (cycles);
cycles.Unclock();
FrameCycles = cycles;
}
@ -2635,11 +2637,7 @@ ADD_STAT (fps)
{
FString out;
out.Format("frame=%04.1f ms walls=%04.1f ms planes=%04.1f ms masked=%04.1f ms",
(double)FrameCycles * SecondsPerCycle * 1000,
(double)WallCycles * SecondsPerCycle * 1000,
(double)PlaneCycles * SecondsPerCycle * 1000,
(double)MaskedCycles * SecondsPerCycle * 1000
);
FrameCycles.TimeMS(), WallCycles.TimeMS(), PlaneCycles.TimeMS(), MaskedCycles.TimeMS());
return out;
}
@ -2651,14 +2649,15 @@ ADD_STAT (fps)
//
//==========================================================================
static cycle_t bestwallcycles = INT_MAX;
static double bestwallcycles = HUGE_VAL;
ADD_STAT (wallcycles)
{
FString out;
if (WallCycles && WallCycles < bestwallcycles)
bestwallcycles = WallCycles;
out.Format ("%llu", bestwallcycles);
FString out;
double cycles = WallCycles.Time();
if (cycles && cycles < bestwallcycles)
bestwallcycles = cycles;
out.Format ("%g", bestwallcycles);
return out;
}
@ -2672,24 +2671,25 @@ ADD_STAT (wallcycles)
CCMD (clearwallcycles)
{
bestwallcycles = INT_MAX;
bestwallcycles = HUGE_VAL;
}
#if 1
// To use these, also uncomment the clock/unclock in wallscan
static cycle_t bestscancycles = INT_MAX;
static double bestscancycles = HUGE_VAL;
ADD_STAT (scancycles)
{
FString out;
if (WallScanCycles && WallScanCycles < bestscancycles)
bestscancycles = WallScanCycles;
out.Format ("%llu", bestscancycles);
FString out;
double scancycles = WallScanCycles.Time();
if (scancycles && scancycles < bestscancycles)
bestscancycles = scancycles;
out.Format ("%g", bestscancycles);
return out;
}
CCMD (clearscancycles)
{
bestscancycles = INT_MAX;
bestscancycles = HUGE_VAL;
}
#endif