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Compress external threads. Saves 4 bytes per ctx switch.

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Dropped support for loading context switch data in previous versions of
traces.
This commit is contained in:
Bartosz Taudul 2019-08-19 23:09:58 +02:00
parent 21e7a4bb16
commit 1712431dfd
5 changed files with 24 additions and 38 deletions
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21
server/TracyEvent.hpp
View File

@ -261,20 +261,15 @@ enum { ContextSwitchDataSize = sizeof( ContextSwitchData ) };
// might come after context switch data).
struct ContextSwitchCpu
{
int64_t Start() const { return int64_t( _start_thread1 ) >> 16; }
void SetStart( int64_t start ) { assert( start < ( 1ll << 47 ) ); _start_thread1 = ( _start_thread1 & 0xFFFF ) | uint64_t( start << 16 ); }
int64_t End() const { return int64_t( _end_thread2 ) >> 16; }
void SetEnd( int64_t end ) { assert( end < ( 1ll << 47 ) ); _end_thread2 = ( _end_thread2 & 0xFFFF ) | uint64_t( end << 16 ); }
uint64_t Thread() const { return uint64_t( uint16_t( _start_thread1 ) ) | ( uint64_t( uint16_t( _end_thread2 ) ) << 16 ) | ( uint64_t( _thread3 ) << 32 ); }
void SetThread( uint64_t thread ) {
_start_thread1 = ( _start_thread1 & 0xFFFFFFFFFFFF0000 ) | uint16_t( thread );
_end_thread2 = ( _end_thread2 & 0xFFFFFFFFFFFF0000 ) | uint16_t( thread >> 16 );
_thread3 = uint32_t( thread >> 32 );
}
int64_t Start() const { return int64_t( _start_thread ) >> 16; }
void SetStart( int64_t start ) { assert( start < ( 1ll << 47 ) ); _start_thread = ( _start_thread & 0xFFFF ) | uint64_t( start << 16 ); }
int64_t End() const { return _end; }
void SetEnd( int64_t end ) { assert( end < ( 1ll << 47 ) ); _end = end; }
uint16_t Thread() const { return uint16_t( _start_thread ); }
void SetThread( uint16_t thread ) { _start_thread = ( _start_thread & 0xFFFFFFFFFFFF0000 ) | thread; }
uint64_t _start_thread1;
uint64_t _end_thread2;
uint32_t _thread3;
uint64_t _start_thread;
uint64_t _end;
};
enum { ContextSwitchCpuSize = sizeof( ContextSwitchCpu ) };

2
server/TracyVersion.hpp
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@ -7,7 +7,7 @@ namespace Version
{
enum { Major = 0 };
enum { Minor = 5 };
enum { Patch = 5 };
enum { Patch = 6 };
}
}

2
server/TracyView.cpp
View File

@ -3991,7 +3991,7 @@ int View::DrawCpuData( int offset, double pxns, const ImVec2& wpos, bool hover,
}
else
{
const auto thread = it->Thread();
const auto thread = m_worker.DecompressThreadExternal( it->Thread() );
const auto local = m_worker.IsThreadLocal( thread );
auto txt = local ? m_worker.GetThreadString( thread ) : m_worker.GetExternalName( thread ).first;
bool untracked = false;

35
server/TracyWorker.cpp
View File

@ -516,6 +516,10 @@ Worker::Worker( FileRead& f, EventType::Type eventMask )
}
m_data.localThreadCompress.Load( f, fileVer );
if( fileVer >= FileVersion( 0, 5, 6 ) )
{
m_data.externalThreadCompress.Load( f, fileVer );
}
f.Read( sz );
for( uint64_t i=0; i<sz; i++ )
@ -1380,7 +1384,7 @@ Worker::Worker( FileRead& f, EventType::Type eventMask )
}
}
if( fileVer >= FileVersion( 0, 5, 1 ) )
if( fileVer >= FileVersion( 0, 5, 6 ) )
{
s_loadProgress.subTotal.store( 0, std::memory_order_relaxed );
s_loadProgress.progress.store( LoadProgress::ContextSwitches, std::memory_order_relaxed );
@ -1399,21 +1403,11 @@ Worker::Worker( FileRead& f, EventType::Type eventMask )
data->v.reserve_exact( csz, m_slab );
int64_t runningTime = 0;
int64_t refTime = 0;
if( fileVer <= FileVersion( 0, 5, 2 ) ) refTime = -m_data.baseTime;
auto ptr = data->v.data();
for( uint64_t j=0; j<csz; j++ )
{
if( fileVer >= FileVersion( 0, 5, 4 ) )
{
ptr->wakeup = ReadTimeOffset( f, refTime );
ptr->SetStart( ReadTimeOffset( f, refTime ) );
}
else
{
int64_t start = ReadTimeOffset( f, refTime );
ptr->wakeup = start;
ptr->SetStart( start );
}
ptr->wakeup = ReadTimeOffset( f, refTime );
ptr->SetStart( ReadTimeOffset( f, refTime ) );
int64_t diff;
f.Read( diff );
if( diff > 0 ) runningTime += diff;
@ -1447,10 +1441,7 @@ Worker::Worker( FileRead& f, EventType::Type eventMask )
f.Skip( csz * sizeof( ContextSwitchData ) );
}
}
}
if( fileVer >= FileVersion( 0, 5, 3 ) )
{
s_loadProgress.subTotal.store( 0, std::memory_order_relaxed );
s_loadProgress.progress.store( LoadProgress::ContextSwitchesPerCpu, std::memory_order_relaxed );
f.Read( sz );
@ -1468,7 +1459,7 @@ Worker::Worker( FileRead& f, EventType::Type eventMask )
{
ptr->SetStart( ReadTimeOffset( f, refTime ) );
ptr->SetEnd( ReadTimeOffset( f, refTime ) );
uint64_t thread;
uint16_t thread;
f.Read( thread );
ptr->SetThread( thread );
ptr++;
@ -1485,10 +1476,7 @@ Worker::Worker( FileRead& f, EventType::Type eventMask )
f.Skip( sizeof( uint64_t ) * 3 * sz );
}
}
}
if( fileVer >= FileVersion( 0, 5, 5 ) )
{
f.Read( sz );
for( uint64_t i=0; i<sz; i++ )
{
@ -4121,7 +4109,7 @@ void Worker::ProcessContextSwitch( const QueueContextSwitch& ev )
if( !cs.empty() )
{
auto& cx = cs.back();
assert( cx.Thread() == ev.oldThread );
assert( m_data.externalThreadCompress.DecompressThread( cx.Thread() ) == ev.oldThread );
cx.SetEnd( time );
}
}
@ -4163,7 +4151,7 @@ void Worker::ProcessContextSwitch( const QueueContextSwitch& ev )
auto& cx = cs.push_next();
cx.SetStart( time );
cx.SetEnd( -1 );
cx.SetThread( ev.newThread );
cx.SetThread( m_data.externalThreadCompress.CompressThread( ev.newThread ) );
CheckExternalName( ev.newThread );
@ -4786,6 +4774,7 @@ void Worker::Write( FileWrite& f )
}
m_data.localThreadCompress.Save( f );
m_data.externalThreadCompress.Save( f );
sz = m_data.sourceLocation.size();
f.Write( &sz, sizeof( sz ) );
@ -5037,7 +5026,7 @@ void Worker::Write( FileWrite& f )
{
WriteTimeOffset( f, refTime, cx.Start() );
WriteTimeOffset( f, refTime, cx.End() );
uint64_t thread = cx.Thread();
uint16_t thread = cx.Thread();
f.Write( &thread, sizeof( thread ) );
}
}

2
server/TracyWorker.hpp
View File

@ -194,6 +194,7 @@ private:
flat_hash_map<uint32_t, LockMap*, nohash<uint32_t>> lockMap;
ThreadCompress localThreadCompress;
ThreadCompress externalThreadCompress;
std::pair<uint64_t, ThreadData*> threadDataLast;
Vector<Vector<ZoneEvent*>> zoneChildren;
@ -359,6 +360,7 @@ public:
tracy_force_inline uint16_t CompressThread( uint64_t thread ) { return m_data.localThreadCompress.CompressThread( thread ); }
tracy_force_inline uint64_t DecompressThread( uint16_t thread ) const { return m_data.localThreadCompress.DecompressThread( thread ); }
tracy_force_inline uint64_t DecompressThreadExternal( uint16_t thread ) const { return m_data.externalThreadCompress.DecompressThread( thread ); }
std::shared_mutex& GetMbpsDataLock() { return m_mbpsData.lock; }
const std::vector<float>& GetMbpsData() const { return m_mbpsData.mbps; }