diff options
Diffstat (limited to 'indra/llcommon/llfasttimer.h')
| -rw-r--r-- | indra/llcommon/llfasttimer.h | 139 |
1 files changed, 103 insertions, 36 deletions
diff --git a/indra/llcommon/llfasttimer.h b/indra/llcommon/llfasttimer.h index c2f23f6ff6..b900be925b 100644 --- a/indra/llcommon/llfasttimer.h +++ b/indra/llcommon/llfasttimer.h @@ -37,7 +37,75 @@ #define FAST_TIMER_ON 1 -U64 get_cpu_clock_count(); +#if LL_WINDOWS + +// shift off lower 8 bits for lower resolution but longer term timing +// on 1Ghz machine, a 32-bit word will hold ~1000 seconds of timing +inline U32 get_cpu_clock_count_32() +{ + U32 ret_val; + __asm + { + _emit 0x0f + _emit 0x31 + shr eax,8 + shl edx,24 + or eax, edx + mov dword ptr [ret_val], eax + } + return ret_val; +} + +// return full timer value, still shifted by 8 bits +inline U64 get_cpu_clock_count_64() +{ + U64 ret_val; + __asm + { + _emit 0x0f + _emit 0x31 + mov eax,eax + mov edx,edx + mov dword ptr [ret_val+4], edx + mov dword ptr [ret_val], eax + } + return ret_val >> 8; +} + +#endif // LL_WINDOWS + +#if (LL_LINUX || LL_SOLARIS || LL_DARWIN) && (defined(__i386__) || defined(__amd64__)) +inline U32 get_cpu_clock_count_32() +{ + U64 x; + __asm__ volatile (".byte 0x0f, 0x31": "=A"(x)); + return (U32)x; +} + +inline U32 get_cpu_clock_count_64() +{ + U64 x; + __asm__ volatile (".byte 0x0f, 0x31": "=A"(x)); + return x; +} +#endif + +#if ( LL_DARWIN && !(defined(__i386__) || defined(__amd64__))) || (LL_SOLARIS && defined(__sparc__)) +// +// Mac PPC (deprecated) & Solaris SPARC implementation of CPU clock +// +// Just use gettimeofday implementation for now + +inline U32 get_cpu_clock_count_32() +{ + return (U32)get_clock_count(); +} + +inline U32 get_cpu_clock_count_64() +{ + return get_clock_count(); +} +#endif class LLMutex; @@ -52,13 +120,14 @@ public: class NamedTimer : public LLInstanceTracker<NamedTimer> { + friend class DeclareTimer; public: ~NamedTimer(); enum { HISTORY_NUM = 60 }; - const std::string& getName() { return mName; } - NamedTimer* getParent() { return mParent; } + const std::string& getName() const { return mName; } + NamedTimer* getParent() const { return mParent; } void setParent(NamedTimer* parent); S32 getDepth(); std::string getToolTip(S32 history_index = -1); @@ -71,11 +140,11 @@ public: void setCollapsed(bool collapsed) { mCollapsed = collapsed; } bool getCollapsed() const { return mCollapsed; } - U64 getCountAverage() const { return mCountAverage; } - U64 getCallAverage() const { return mCallAverage; } + U32 getCountAverage() const { return mCountAverage; } + U32 getCallAverage() const { return mCallAverage; } - U64 getHistoricalCount(S32 history_index = 0) const; - U64 getHistoricalCalls(S32 history_index = 0) const; + U32 getHistoricalCount(S32 history_index = 0) const; + U32 getHistoricalCalls(S32 history_index = 0) const; static NamedTimer& getRootNamedTimer(); @@ -83,8 +152,7 @@ public: { FrameState(NamedTimer* timerp); - U64 mSelfTimeCounter; - U64 mLastStartTime; // most recent time when this timer was started + U32 mSelfTimeCounter; U32 mCalls; FrameState* mParent; // info for caller timer FrameState* mLastCaller; // used to bootstrap tree construction @@ -93,11 +161,6 @@ public: bool mMoveUpTree; // needs to be moved up the tree of timers at the end of frame }; - FrameState& getFrameStateFast() const - { - return (*sTimerInfos)[mFrameStateIndex]; - } - S32 getFrameStateIndex() const { return mFrameStateIndex; } FrameState& getFrameState() const; @@ -122,10 +185,7 @@ public: static void resetFrame(); static void reset(); - typedef std::vector<FrameState> info_list_t; - static info_list_t& getFrameStateList(); - static void createFrameStateList(); // must call before any call to getFrameStateList() - + // // members // @@ -133,13 +193,13 @@ public: std::string mName; - U64 mTotalTimeCounter; + U32 mTotalTimeCounter; - U64 mCountAverage; - U64 mCallAverage; + U32 mCountAverage; + U32 mCallAverage; - U64* mCountHistory; - U64* mCallHistory; + U32* mCountHistory; + U32* mCallHistory; // tree structure NamedTimer* mParent; // NamedTimer of caller(parent) @@ -147,41 +207,46 @@ public: bool mCollapsed; // don't show children bool mNeedsSorting; // sort children whenever child added - static info_list_t* sTimerInfos; }; // used to statically declare a new named timer - class DeclareTimer + class DeclareTimer + : public LLInstanceTracker<DeclareTimer> { public: DeclareTimer(const std::string& name, bool open); DeclareTimer(const std::string& name); + static void updateCachedPointers(); + // convertable to NamedTimer::FrameState for convenient usage of LLFastTimer(declared_timer) - operator NamedTimer::FrameState&() { return mNamedTimer.getFrameStateFast(); } + operator NamedTimer::FrameState&() { return *mFrameState; } private: - NamedTimer& mNamedTimer; + NamedTimer& mTimer; + NamedTimer::FrameState* mFrameState; }; public: - enum RootTimerMarker { ROOT }; - static LLMutex* sLogLock; static std::queue<LLSD> sLogQueue; static BOOL sLog; static BOOL sMetricLog; + typedef std::vector<NamedTimer::FrameState> info_list_t; + static info_list_t& getFrameStateList(); + + enum RootTimerMarker { ROOT }; LLFastTimer(RootTimerMarker); LLFastTimer(NamedTimer::FrameState& timer) : mFrameState(&timer) { #if FAST_TIMER_ON - NamedTimer::FrameState* frame_state = mFrameState; - U64 cur_time = get_cpu_clock_count(); - frame_state->mLastStartTime = cur_time; + NamedTimer::FrameState* frame_state = &timer; + U32 cur_time = get_cpu_clock_count_32(); mStartSelfTime = cur_time; + mStartTotalTime = cur_time; frame_state->mActiveCount++; frame_state->mCalls++; @@ -197,7 +262,7 @@ public: { #if FAST_TIMER_ON NamedTimer::FrameState* frame_state = mFrameState; - U64 cur_time = get_cpu_clock_count(); + U32 cur_time = get_cpu_clock_count_32(); frame_state->mSelfTimeCounter += cur_time - mStartSelfTime; frame_state->mActiveCount--; @@ -208,7 +273,7 @@ public: frame_state->mLastCaller = last_timer->mFrameState; // we are only tracking self time, so subtract our total time delta from parents - U64 total_time = cur_time - frame_state->mLastStartTime; + U32 total_time = cur_time - mStartTotalTime; last_timer->mStartSelfTime += total_time; #endif } @@ -240,9 +305,11 @@ private: static LLFastTimer* sCurTimer; static S32 sCurFrameIndex; static S32 sLastFrameIndex; + static U64 sLastFrameTime; + static info_list_t* sTimerInfos; - static F64 sCPUClockFrequency; - U64 mStartSelfTime; // start time + time of all child timers + U32 mStartSelfTime; // start time + time of all child timers + U32 mStartTotalTime; // start time + time of all child timers NamedTimer::FrameState* mFrameState; LLFastTimer* mLastTimer; }; |