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Automatic timer fallback

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This commit is contained in:
Daniil Brychikov
2022-02-11 17:01:56 +03:00
parent 92b182d47e
commit 73f6c66cde
2 changed files with 106 additions and 38 deletions
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client/TracyProfiler.hpp
+44 -11
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@@ -26,11 +26,11 @@
# include <mach/mach_time.h>
#endif
#if !defined TRACY_TIMER_FALLBACK && ( defined _WIN32 || ( defined __i386 || defined _M_IX86 || defined __x86_64__ || defined _M_X64 ) || ( defined TARGET_OS_IOS && TARGET_OS_IOS == 1 ) )
#if ( defined _WIN32 || ( defined __i386 || defined _M_IX86 || defined __x86_64__ || defined _M_X64 ) || ( defined TARGET_OS_IOS && TARGET_OS_IOS == 1 ) )
# define TRACY_HW_TIMER
#endif
#if !defined TRACY_HW_TIMER
#if defined TRACY_TIMER_FALLBACK || !defined TRACY_HW_TIMER
# include <chrono>
#endif
@@ -67,6 +67,23 @@ TRACY_API uint32_t GetThreadHandle();
TRACY_API bool ProfilerAvailable();
TRACY_API int64_t GetFrequencyQpc();
#if defined TRACY_TIMER_FALLBACK && defined TRACY_HW_TIMER && ( defined __i386 || defined _M_IX86 || defined __x86_64__ || defined _M_X64 )
TRACY_API bool hardwareSupportsInvariantTSC(); // check, if we need fallback scenario
#else
# if defined TRACY_HW_TIMER
tracy_force_inline bool hardwareSupportsInvariantTSC()
{
return true; // this is checked at startup
}
# else
tracy_force_inline bool hardwareSupportsInvariantTSC()
{
return false;
}
# endif
#endif
struct SourceLocationData
{
const char* name;
@@ -166,25 +183,39 @@ public:
{
#ifdef TRACY_HW_TIMER
# if defined TARGET_OS_IOS && TARGET_OS_IOS == 1
return mach_absolute_time();
if (hardwareSupportsInvariantTSC())
{
return mach_absolute_time();
}
# elif defined _WIN32
# ifdef TRACY_TIMER_QPC
return GetTimeQpc();
# else
return int64_t( __rdtsc() );
if (hardwareSupportsInvariantTSC())
{
return int64_t( __rdtsc() );
}
# endif
# elif defined __i386 || defined _M_IX86
uint32_t eax, edx;
asm volatile ( "rdtsc" : "=a" (eax), "=d" (edx) );
return ( uint64_t( edx ) << 32 ) + uint64_t( eax );
if (hardwareSupportsInvariantTSC())
{
uint32_t eax, edx;
asm volatile ( "rdtsc" : "=a" (eax), "=d" (edx) );
return ( uint64_t( edx ) << 32 ) + uint64_t( eax );
}
# elif defined __x86_64__ || defined _M_X64
uint64_t rax, rdx;
asm volatile ( "rdtsc" : "=a" (rax), "=d" (rdx) );
return (int64_t)(( rdx << 32 ) + rax);
if (hardwareSupportsInvariantTSC())
{
uint64_t rax, rdx;
asm volatile ( "rdtsc" : "=a" (rax), "=d" (rdx) );
return (int64_t)(( rdx << 32 ) + rax);
}
# else
# error "TRACY_HW_TIMER detection logic needs fixing"
# endif
#else
#endif
#if !defined TRACY_HW_TIMER || defined TRACY_TIMER_FALLBACK
# if defined __linux__ && defined CLOCK_MONOTONIC_RAW
struct timespec ts;
clock_gettime( CLOCK_MONOTONIC_RAW, &ts );
@@ -193,6 +224,8 @@ public:
return std::chrono::duration_cast<std::chrono::nanoseconds>( std::chrono::high_resolution_clock::now().time_since_epoch() ).count();
# endif
#endif
return 0; // unreacheble branch
}
tracy_force_inline uint32_t GetNextZoneId()