diff --git a/server/TracyEvent.hpp b/server/TracyEvent.hpp
new file mode 100755
index 00000000..f325077a
--- /dev/null
+++ b/server/TracyEvent.hpp
@@ -0,0 +1,21 @@
+#ifndef __TRACYEVENT_HPP__
+#define __TRACYEVENT_HPP__
+
+#include <vector>
+
+namespace tracy
+{
+
+struct Event
+{
+    int64_t start;
+    int64_t end;
+
+    std::vector<uint64_t> child;
+};
+
+enum { EventSize = sizeof( Event ) };
+
+}
+
+#endif
diff --git a/server/TracyView.cpp b/server/TracyView.cpp
index d1ae703f..ba182bc0 100755
--- a/server/TracyView.cpp
+++ b/server/TracyView.cpp
@@ -101,7 +101,58 @@ close:
 
 void View::Process( const QueueItem& ev )
 {
+    switch( ev.hdr.type )
+    {
+    case QueueType::ZoneBegin:
+        ProcessZoneBegin( ev.hdr.id, ev.zoneBegin );
+        break;
+    case QueueType::ZoneEnd:
+        ProcessZoneEnd( ev.hdr.id, ev.zoneEnd );
+        break;
+    default:
+        assert( false );
+        break;
+    }
+}
 
+void View::ProcessZoneBegin( uint64_t id, const QueueZoneBegin& ev )
+{
+    auto it = m_pendingEndZone.find( id );
+    const auto idx = m_data.size();
+    std::unique_lock<std::mutex> lock( m_lock );
+    if( it == m_pendingEndZone.end() )
+    {
+        m_data.emplace_back( Event { ev.time, -1 } );
+        lock.unlock();
+
+        m_openZones.emplace( id, idx );
+    }
+    else
+    {
+        assert( ev.time <= it->second.time );
+        m_data.emplace_back( Event { ev.time, it->second.time } );
+        lock.unlock();
+
+        m_pendingEndZone.erase( it );
+    }
+}
+
+void View::ProcessZoneEnd( uint64_t id, const QueueZoneEnd& ev )
+{
+    auto it = m_openZones.find( id );
+    if( it == m_openZones.end() )
+    {
+        m_pendingEndZone.emplace( id, ev );
+    }
+    else
+    {
+        std::unique_lock<std::mutex> lock( m_lock );
+        assert( ev.time >= m_data[it->second].start );
+        m_data[it->second].end = ev.time;
+        lock.unlock();
+
+        m_openZones.erase( it );
+    }
 }
 
 }
diff --git a/server/TracyView.hpp b/server/TracyView.hpp
index 8191c2a8..583e9007 100755
--- a/server/TracyView.hpp
+++ b/server/TracyView.hpp
@@ -2,8 +2,14 @@
 #define __TRACYVIEW_HPP__
 
 #include <atomic>
+#include <mutex>
 #include <string>
 #include <thread>
+#include <unordered_map>
+#include <vector>
+
+#include "../common/TracyQueue.hpp"
+#include "TracyEvent.hpp"
 
 namespace tracy
 {
@@ -23,12 +29,23 @@ private:
     void Worker();
     void Process( const QueueItem& ev );
 
+    void ProcessZoneBegin( uint64_t id, const QueueZoneBegin& ev );
+    void ProcessZoneEnd( uint64_t id, const QueueZoneEnd& ev );
+
     std::string m_addr;
 
     std::thread m_thread;
     std::atomic<bool> m_shutdown;
 
     int64_t m_timeBegin;
+
+    std::mutex m_lock;
+    std::vector<Event> m_data;
+    std::vector<uint64_t> m_timeline;
+
+    // not used for vis - no need to lock
+    std::unordered_map<uint64_t, QueueZoneEnd> m_pendingEndZone;
+    std::unordered_map<uint64_t, uint64_t> m_openZones;
 };
 
 }