mirror/tracy
1
0
Fork 0
mirror of https://github.com/wolfpld/tracy.git synced 2024-09-20 05:42:18 +00:00
Code Issues Packages Projects Releases Wiki Activity

Detect context switch samples during reconstruction.

Browse Source
This commit is contained in:
Bartosz Taudul 2021-11-13 03:15:20 +01:00
parent 484ed84252
commit 0ab73e2aa7
No known key found for this signature in database
GPG Key ID: B7FE2008B7575DF3
1 changed files with 42 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

65
server/TracyWorker.cpp
View File

@ -1953,40 +1953,59 @@ Worker::Worker( FileRead& f, EventType::Type eventMask, bool bgTasks )
for( auto& t : m_data.threads )
{
if( m_shutdown.load( std::memory_order_relaxed ) ) return;
auto ctx = GetContextSwitchData( t->id );
Vector<ContextSwitchData>::const_iterator cit = nullptr;
if( ctx ) cit = ctx->v.begin();
for( auto& sd : t->samples )
{
const auto cs = sd.callstack.Val();
auto it = counts.find( cs );
if( it == counts.end() )
bool isCtxSwitch = false;
if( ctx )
{
counts.emplace( cs, 1 );
}
else
{
it->second++;
}
const auto& callstack = GetCallstack( cs );
auto& ip = callstack[0];
auto frame = GetCallstackFrame( ip );
if( frame )
{
const auto symAddr = frame->data[0].symAddr;
auto it = m_data.instructionPointersMap.find( symAddr );
if( it == m_data.instructionPointersMap.end() )
cit = std::lower_bound( cit, ctx->v.end(), sd.time.Val(), [] ( const auto& l, const auto& r ) { return (uint64_t)l.End() < (uint64_t)r; } );
if( cit != ctx->v.end() )
{
m_data.instructionPointersMap.emplace( symAddr, unordered_flat_map<CallstackFrameId, uint32_t, CallstackFrameIdHash, CallstackFrameIdCompare> { { ip, 1 } } );
if( sd.time.Val() == cit->Start() )
{
isCtxSwitch = true;
t->ctxSwitchSamples.push_back( sd );
}
}
}
if( !isCtxSwitch )
{
const auto cs = sd.callstack.Val();
auto it = counts.find( cs );
if( it == counts.end() )
{
counts.emplace( cs, 1 );
}
else
{
auto fit = it->second.find( ip );
if( fit == it->second.end() )
it->second++;
}
const auto& callstack = GetCallstack( cs );
auto& ip = callstack[0];
auto frame = GetCallstackFrame( ip );
if( frame )
{
const auto symAddr = frame->data[0].symAddr;
auto it = m_data.instructionPointersMap.find( symAddr );
if( it == m_data.instructionPointersMap.end() )
{
it->second.emplace( ip, 1 );
m_data.instructionPointersMap.emplace( symAddr, unordered_flat_map<CallstackFrameId, uint32_t, CallstackFrameIdHash, CallstackFrameIdCompare> { { ip, 1 } } );
}
else
{
fit->second++;
auto fit = it->second.find( ip );
if( fit == it->second.end() )
{
it->second.emplace( ip, 1 );
}
else
{
fit->second++;
}
}
}
}