diff --git a/server/TracyWorker.cpp b/server/TracyWorker.cpp
index 13178d0a..e9273711 100644
--- a/server/TracyWorker.cpp
+++ b/server/TracyWorker.cpp
@@ -426,6 +426,28 @@ const Worker::SourceLocationZones& Worker::GetZonesForSourceLocation( int32_t sr
 }
 #endif
 
+uint16_t Worker::CompressThread( uint64_t thread )
+{
+    auto it = m_data.threadMap.find( thread );
+    if( it != m_data.threadMap.end() )
+    {
+        return it->second;
+    }
+    else
+    {
+        auto sz = m_data.threadExpand.size();
+        m_data.threadExpand.push_back( thread );
+        m_data.threadMap.emplace( thread, sz );
+        return sz;
+    }
+}
+
+uint64_t Worker::DecompressThread( uint16_t thread ) const
+{
+    assert( thread < m_data.threadExpand.size() );
+    return m_data.threadExpand[thread];
+}
+
 void Worker::Exec()
 {
     timeval tv;
diff --git a/server/TracyWorker.hpp b/server/TracyWorker.hpp
index fd640216..7e862682 100644
--- a/server/TracyWorker.hpp
+++ b/server/TracyWorker.hpp
@@ -69,6 +69,9 @@ class Worker
 #endif
 
         std::map<uint32_t, LockMap> lockMap;
+
+        flat_hash_map<uint64_t, uint16_t, nohash<uint64_t>> threadMap;
+        Vector<uint64_t> threadExpand;
     };
 
     struct MbpsBlock
@@ -126,6 +129,9 @@ public:
     const SourceLocationZones& GetZonesForSourceLocation( int32_t srcloc ) const;
 #endif
 
+    uint16_t CompressThread( uint64_t thread );
+    uint64_t DecompressThread( uint16_t thread ) const;
+
     NonRecursiveBenaphore& GetMbpsDataLock() { return m_mbpsData.lock; }
     const std::vector<float>& GetMbpsData() const { return m_mbpsData.mbps; }
     float GetCompRatio() const { return m_mbpsData.compRatio; }