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scheduler: profiler: Use nanosecond as a main time unit

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This commit is contained in:
Pawel Dziepak
2013-12-28 21:03:43 +01:00
parent ca9137de37
commit 712f37e19e
2 changed files with 13 additions and 13 deletions
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src/system/kernel/scheduler/scheduler_profiler.cpp
+10 -10
View File
@@ -55,7 +55,7 @@ Profiler::Profiler()
void void
Profiler::EnterFunction(int32 cpu, const char* functionName) Profiler::EnterFunction(int32 cpu, const char* functionName)
{ {
bigtime_t start = system_time(); nanotime_t start = system_time_nsecs();
FunctionData* function = _FindFunction(functionName); FunctionData* function = _FindFunction(functionName);
if (function == NULL) if (function == NULL)
@@ -72,7 +72,7 @@ Profiler::EnterFunction(int32 cpu, const char* functionName)
stackEntry->fEntryTime = start; stackEntry->fEntryTime = start;
stackEntry->fOthersTime = 0; stackEntry->fOthersTime = 0;
bigtime_t stop = system_time(); nanotime_t stop = system_time_nsecs();
stackEntry->fProfilerTime = stop - start; stackEntry->fProfilerTime = stop - start;
} }
@@ -80,27 +80,27 @@ Profiler::EnterFunction(int32 cpu, const char* functionName)
void void
Profiler::ExitFunction(int32 cpu, const char* functionName) Profiler::ExitFunction(int32 cpu, const char* functionName)
{ {
bigtime_t start = system_time(); nanotime_t start = system_time_nsecs();
ASSERT(fFunctionStackPointers[cpu] > 0); ASSERT(fFunctionStackPointers[cpu] > 0);
fFunctionStackPointers[cpu]--; fFunctionStackPointers[cpu]--;
FunctionEntry* stackEntry FunctionEntry* stackEntry
= &fFunctionStacks[cpu][fFunctionStackPointers[cpu]]; = &fFunctionStacks[cpu][fFunctionStackPointers[cpu]];
bigtime_t timeSpent = start - stackEntry->fEntryTime; nanotime_t timeSpent = start - stackEntry->fEntryTime;
timeSpent -= stackEntry->fProfilerTime; timeSpent -= stackEntry->fProfilerTime;
atomic_add64(&stackEntry->fFunction->fTimeInclusive, timeSpent); atomic_add64(&stackEntry->fFunction->fTimeInclusive, timeSpent);
atomic_add64(&stackEntry->fFunction->fTimeExclusive, atomic_add64(&stackEntry->fFunction->fTimeExclusive,
timeSpent - stackEntry->fOthersTime); timeSpent - stackEntry->fOthersTime);
bigtime_t profilerTime = stackEntry->fProfilerTime; nanotime_t profilerTime = stackEntry->fProfilerTime;
if (fFunctionStackPointers[cpu] > 0) { if (fFunctionStackPointers[cpu] > 0) {
stackEntry = &fFunctionStacks[cpu][fFunctionStackPointers[cpu] - 1]; stackEntry = &fFunctionStacks[cpu][fFunctionStackPointers[cpu] - 1];
stackEntry->fOthersTime += timeSpent; stackEntry->fOthersTime += timeSpent;
stackEntry->fProfilerTime += profilerTime; stackEntry->fProfilerTime += profilerTime;
bigtime_t stop = system_time(); nanotime_t stop = system_time_nsecs();
stackEntry->fProfilerTime += stop - start; stackEntry->fProfilerTime += stop - start;
} }
} }
@@ -126,7 +126,7 @@ Profiler::DumpTimeInclusive(uint32 maxCount)
uint32 count = _FunctionCount(); uint32 count = _FunctionCount();
qsort(fFunctionData, count, sizeof(FunctionData), qsort(fFunctionData, count, sizeof(FunctionData),
&_CompareFunctions<bigtime_t, &FunctionData::fTimeInclusive>); &_CompareFunctions<nanotime_t, &FunctionData::fTimeInclusive>);
if (maxCount > 0) if (maxCount > 0)
count = std::min(count, maxCount); count = std::min(count, maxCount);
@@ -140,7 +140,7 @@ Profiler::DumpTimeExclusive(uint32 maxCount)
uint32 count = _FunctionCount(); uint32 count = _FunctionCount();
qsort(fFunctionData, count, sizeof(FunctionData), qsort(fFunctionData, count, sizeof(FunctionData),
&_CompareFunctions<bigtime_t, &FunctionData::fTimeExclusive>); &_CompareFunctions<nanotime_t, &FunctionData::fTimeExclusive>);
if (maxCount > 0) if (maxCount > 0)
count = std::min(count, maxCount); count = std::min(count, maxCount);
@@ -154,7 +154,7 @@ Profiler::DumpTimeInclusivePerCall(uint32 maxCount)
uint32 count = _FunctionCount(); uint32 count = _FunctionCount();
qsort(fFunctionData, count, sizeof(FunctionData), qsort(fFunctionData, count, sizeof(FunctionData),
&_CompareFunctionsPerCall<bigtime_t, &FunctionData::fTimeInclusive>); &_CompareFunctionsPerCall<nanotime_t, &FunctionData::fTimeInclusive>);
if (maxCount > 0) if (maxCount > 0)
count = std::min(count, maxCount); count = std::min(count, maxCount);
@@ -168,7 +168,7 @@ Profiler::DumpTimeExclusivePerCall(uint32 maxCount)
uint32 count = _FunctionCount(); uint32 count = _FunctionCount();
qsort(fFunctionData, count, sizeof(FunctionData), qsort(fFunctionData, count, sizeof(FunctionData),
&_CompareFunctionsPerCall<bigtime_t, &FunctionData::fTimeExclusive>); &_CompareFunctionsPerCall<nanotime_t, &FunctionData::fTimeExclusive>);
if (maxCount > 0) if (maxCount > 0)
count = std::min(count, maxCount); count = std::min(count, maxCount);
src/system/kernel/scheduler/scheduler_profiler.h
+3 -3
View File
@@ -55,9 +55,9 @@ private:
struct FunctionEntry { struct FunctionEntry {
FunctionData* fFunction; FunctionData* fFunction;
bigtime_t fEntryTime; nanotime_t fEntryTime;
bigtime_t fOthersTime; nanotime_t fOthersTime;
bigtime_t fProfilerTime; nanotime_t fProfilerTime;
}; };
uint32 _FunctionCount() const; uint32 _FunctionCount() const;