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Decouple source code retrieval from the profiler thread.

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This will prevent apparent freezes of the profiler when debuginfod queries are
made.
This commit is contained in:
Bartosz Taudul 2022-10-13 00:27:28 +02:00
parent 6ca1c98655
commit a85c0e18d2
No known key found for this signature in database
GPG Key ID: B7FE2008B7575DF3
4 changed files with 69 additions and 37 deletions
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88
public/client/TracyProfiler.cpp
View File

@ -709,14 +709,6 @@ void Profiler::AckServerQuery()
AppendDataUnsafe( &item, QueueDataSize[(int)QueueType::AckServerQueryNoop] );
}
void Profiler::AckSourceCodeNotAvailable()
{
QueueItem item;
MemWrite( &item.hdr.type, QueueType::AckSourceCodeNotAvailable );
NeedDataSize( QueueDataSize[(int)QueueType::AckSourceCodeNotAvailable] );
AppendDataUnsafe( &item, QueueDataSize[(int)QueueType::AckSourceCodeNotAvailable] );
}
void Profiler::AckSymbolCodeNotAvailable()
{
QueueItem item;
@ -2202,6 +2194,10 @@ static void FreeAssociatedMemory( const QueueItem& item )
tracy_free_fast( (void*)ptr );
break;
#endif
case QueueType::SourceCodeMetadata:
ptr = MemRead<uint64_t>( &item.sourceCodeMetadata.ptr );
tracy_free( (void*)ptr );
break;
default:
break;
}
@ -2496,6 +2492,15 @@ Profiler::DequeueStatus Profiler::Dequeue( moodycamel::ConsumerToken& token )
continue;
}
#endif
case QueueType::SourceCodeMetadata:
{
auto ptr = (const char*)MemRead<uint64_t>( &item->sourceCodeMetadata.ptr );
auto size = MemRead<uint32_t>( &item->sourceCodeMetadata.size );
SendLongString( (uint64_t)ptr, ptr, size, QueueType::SourceCode );
tracy_free_fast( (void*)ptr );
++item;
continue;
}
default:
assert( false );
break;
@ -3162,6 +3167,15 @@ void Profiler::QueueKernelCode( uint64_t symbol, uint32_t size )
#endif
}
void Profiler::QueueSourceCodeQuery()
{
assert( m_exectime != 0 );
assert( m_queryData );
m_symbolQueue.emplace( SymbolQueueItem { SymbolQueueItemType::SourceCode, uint64_t( m_queryData ), uint64_t( m_queryImage ) } );
m_queryData = nullptr;
m_queryImage = nullptr;
}
#ifdef TRACY_HAS_CALLSTACK
void Profiler::HandleSymbolQueueItem( const SymbolQueueItem& si )
{
@ -3249,6 +3263,9 @@ void Profiler::HandleSymbolQueueItem( const SymbolQueueItem& si )
TracyLfqCommit;
break;
}
case SymbolQueueItemType::SourceCode:
HandleSourceCodeQuery( (char*)si.ptr, (char*)si.extra );
break;
default:
assert( false );
break;
@ -3365,7 +3382,7 @@ bool Profiler::HandleServerQuery()
break;
#endif
case ServerQuerySourceCode:
HandleSourceCodeQuery();
QueueSourceCodeQuery();
break;
case ServerQueryDataTransfer:
if( m_queryData )
@ -3791,19 +3808,15 @@ void Profiler::HandleSymbolCodeQuery( uint64_t symbol, uint32_t size )
}
}
void Profiler::HandleSourceCodeQuery()
void Profiler::HandleSourceCodeQuery( char* data, char* image )
{
assert( m_exectime != 0 );
assert( m_queryData );
InitRpmalloc();
bool ok = false;
struct stat st;
if( stat( m_queryData, &st ) == 0 && (uint64_t)st.st_mtime < m_exectime )
if( stat( data, &st ) == 0 && (uint64_t)st.st_mtime < m_exectime )
{
if( st.st_size < ( TargetFrameSize - 16 ) )
{
FILE* f = fopen( m_queryData, "rb" );
FILE* f = fopen( data, "rb" );
if( f )
{
auto ptr = (char*)tracy_malloc_fast( st.st_size );
@ -3811,22 +3824,25 @@ void Profiler::HandleSourceCodeQuery()
fclose( f );
if( rd == (size_t)st.st_size )
{
SendLongString( (uint64_t)ptr, ptr, rd, QueueType::SourceCode );
TracyLfqPrepare( QueueType::SourceCodeMetadata );
MemWrite( &item->sourceCodeMetadata.ptr, (uint64_t)ptr );
MemWrite( &item->sourceCodeMetadata.size, (uint32_t)rd );
TracyLfqCommit;
ok = true;
}
tracy_free_fast( ptr );
}
}
}
#ifdef TRACY_DEBUGINFOD
else if( m_queryImage && m_queryData[0] == '/' )
else if( image && data[0] == '/' )
{
size_t size;
auto buildid = GetBuildIdForImage( m_queryImage, size );
auto buildid = GetBuildIdForImage( image, size );
if( buildid )
{
auto d = debuginfod_find_source( GetDebuginfodClient(), buildid, size, m_queryData, nullptr );
TracyDebug( "DebugInfo source query: %s, fn: %s, image: %s\n", d >= 0 ? " ok " : "fail", m_queryData, m_queryImage );
auto d = debuginfod_find_source( GetDebuginfodClient(), buildid, size, data, nullptr );
TracyDebug( "DebugInfo source query: %s, fn: %s, image: %s\n", d >= 0 ? " ok " : "fail", data, image );
if( d >= 0 )
{
struct stat st;
@ -3838,10 +3854,12 @@ void Profiler::HandleSourceCodeQuery()
auto rd = read( d, ptr, st.st_size );
if( rd == (size_t)st.st_size )
{
SendLongString( (uint64_t)ptr, ptr, rd, QueueType::SourceCode );
TracyLfqPrepare( QueueType::SourceCodeMetadata );
MemWrite( &item->sourceCodeMetadata.ptr, (uint64_t)ptr );
MemWrite( &item->sourceCodeMetadata.size, (uint32_t)rd );
TracyLfqCommit;
ok = true;
}
tracy_free_fast( ptr );
}
close( d );
}
@ -3849,31 +3867,35 @@ void Profiler::HandleSourceCodeQuery()
}
else
{
TracyDebug( "DebugInfo invalid query fn: %s, image: %s\n", m_queryData, m_queryImage );
TracyDebug( "DebugInfo invalid query fn: %s, image: %s\n", data, image );
}
#endif
if( !ok && m_sourceCallback )
{
size_t sz;
char* ptr = m_sourceCallback( m_sourceCallbackData, m_queryData, sz );
char* ptr = m_sourceCallback( m_sourceCallbackData, data, sz );
if( ptr )
{
if( sz < ( TargetFrameSize - 16 ) )
{
SendLongString( (uint64_t)ptr, ptr, sz, QueueType::SourceCode );
TracyLfqPrepare( QueueType::SourceCodeMetadata );
MemWrite( &item->sourceCodeMetadata.ptr, (uint64_t)ptr );
MemWrite( &item->sourceCodeMetadata.size, (uint32_t)sz );
TracyLfqCommit;
ok = true;
}
tracy_free_fast( ptr );
}
}
if( !ok ) AckSourceCodeNotAvailable();
if( !ok )
{
TracyLfqPrepare( QueueType::AckSourceCodeNotAvailable );
TracyLfqCommit;
}
tracy_free_fast( m_queryData );
tracy_free_fast( m_queryImage );
m_queryData = nullptr;
m_queryImage = nullptr;
tracy_free_fast( data );
tracy_free_fast( image );
}
#if defined _WIN32 && defined TRACY_TIMER_QPC

7
public/client/TracyProfiler.hpp
View File

@ -168,7 +168,8 @@ class Profiler
CallstackFrame,
SymbolQuery,
ExternalName,
KernelCode
KernelCode,
SourceCode
};
struct SymbolQueueItem
@ -807,15 +808,15 @@ private:
void QueueSymbolQuery( uint64_t symbol );
void QueueExternalName( uint64_t ptr );
void QueueKernelCode( uint64_t symbol, uint32_t size );
void QueueSourceCodeQuery();
bool HandleServerQuery();
void HandleDisconnect();
void HandleParameter( uint64_t payload );
void HandleSymbolCodeQuery( uint64_t symbol, uint32_t size );
void HandleSourceCodeQuery();
void HandleSourceCodeQuery( char* data, char* image );
void AckServerQuery();
void AckSourceCodeNotAvailable();
void AckSymbolCodeNotAvailable();
void CalibrateTimer();

2
public/common/TracyProtocol.hpp
View File

@ -9,7 +9,7 @@ namespace tracy
constexpr unsigned Lz4CompressBound( unsigned isize ) { return isize + ( isize / 255 ) + 16; }
enum : uint32_t { ProtocolVersion = 61 };
enum : uint32_t { ProtocolVersion = 62 };
enum : uint16_t { BroadcastVersion = 3 };
using lz4sz_t = uint32_t;

9
public/common/TracyQueue.hpp
View File

@ -63,6 +63,7 @@ enum class QueueType : uint8_t
SymbolInformation,
ExternalNameMetadata,
SymbolCodeMetadata,
SourceCodeMetadata,
FiberEnter,
FiberLeave,
Terminate,
@ -635,6 +636,12 @@ struct QueueSymbolCodeMetadata
uint32_t size;
};
struct QueueSourceCodeMetadata
{
uint64_t ptr;
uint32_t size;
};
struct QueueHeader
{
union
@ -725,6 +732,7 @@ struct QueueItem
QueueCpuTopology cpuTopology;
QueueExternalNameMetadata externalNameMetadata;
QueueSymbolCodeMetadata symbolCodeMetadata;
QueueSourceCodeMetadata sourceCodeMetadata;
QueueFiberEnter fiberEnter;
QueueFiberLeave fiberLeave;
};
@ -789,6 +797,7 @@ static constexpr size_t QueueDataSize[] = {
sizeof( QueueHeader ) + sizeof( QueueSymbolInformation ),
sizeof( QueueHeader ), // ExternalNameMetadata - not for wire transfer
sizeof( QueueHeader ), // SymbolCodeMetadata - not for wire transfer
sizeof( QueueHeader ), // SourceCodeMetadata - not for wire transfer
sizeof( QueueHeader ) + sizeof( QueueFiberEnter ),
sizeof( QueueHeader ) + sizeof( QueueFiberLeave ),
// above items must be first