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Report CPU topology on Linux.

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This commit is contained in:
Bartosz Taudul 2019-11-30 01:51:29 +01:00
parent 208d155b96
commit e8fcc250a1
1 changed files with 47 additions and 0 deletions
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47
client/TracyProfiler.cpp
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@ -2544,6 +2544,53 @@ void Profiler::ReportTopology()
tracy_free( cpuData );
tracy_free( coreInfo );
tracy_free( packageInfo );
#elif defined __linux__
const int numcpus = std::thread::hardware_concurrency();
auto cpuData = (CpuData*)tracy_malloc( sizeof( CpuData ) * numcpus );
memset( cpuData, 0, sizeof( CpuData ) * numcpus );
const char* basePath = "/sys/devices/system/cpu/cpu";
for( int i=0; i<numcpus; i++ )
{
char path[1024];
sprintf( path, "%s%i/topology/physical_package_id", basePath, i );
char buf[1024];
FILE* f = fopen( path, "rb" );
auto read = fread( buf, 1, 1024, f );
buf[read] = '\0';
fclose( f );
cpuData[i].package = uint32_t( atoi( buf ) );
cpuData[i].thread = i;
sprintf( path, "%s%i/topology/core_id", basePath, i );
f = fopen( path, "rb" );
read = fread( buf, 1, 1024, f );
buf[read] = '\0';
fclose( f );
cpuData[i].core = uint32_t( atoi( buf ) );
}
Magic magic;
auto token = GetToken();
for( uint32_t i=0; i<numcpus; i++ )
{
auto& data = cpuData[i];
auto& tail = token->get_tail_index();
auto item = token->enqueue_begin( magic );
MemWrite( &item->hdr.type, QueueType::CpuTopology );
MemWrite( &item->cpuTopology.package, data.package );
MemWrite( &item->cpuTopology.core, data.core );
MemWrite( &item->cpuTopology.thread, data.thread );
#ifdef TRACY_ON_DEMAND
DeferItem( *item );
#endif
tail.store( magic + 1, std::memory_order_release );
}
tracy_free( cpuData );
#endif
}