diff --git a/.gitignore b/.gitignore
index a054091..e4373d3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 bin
-build
+*build*
 .idea
+*.user
diff --git a/include/profiler/profiler.h b/include/profiler/profiler.h
index 557ae4b..db31e68 100644
--- a/include/profiler/profiler.h
+++ b/include/profiler/profiler.h
@@ -259,6 +259,11 @@ namespace profiler
 		inline bool isCleared() const { return end >= begin; }
 		inline void finish(){ tick(end); }
 		timestamp_t duration() const { return (end - begin); }
+
+        inline bool startsEarlierThan(const BaseBlockData& another) const {return this->begin < another.begin;}
+        inline bool endsEarlierThan(const BaseBlockData& another) const {return this->end < another.end;}
+        inline bool startsLaterThan(const BaseBlockData& another) const {return !this->startsEarlierThan(another);}
+        inline bool endsLaterThan(const BaseBlockData& another) const {return !this->endsEarlierThan(another);}
 	};
 #pragma pack(pop)
 
diff --git a/profiler_gui/CMakeLists.txt b/profiler_gui/CMakeLists.txt
index d1d2114..27a72fe 100644
--- a/profiler_gui/CMakeLists.txt
+++ b/profiler_gui/CMakeLists.txt
@@ -6,5 +6,5 @@ set(CMAKE_AUTOMOC ON)
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 
 find_package(Qt5Widgets REQUIRED)
-add_executable(${PROJECT_NAME} main.cpp)
-target_link_libraries(${PROJECT_NAME} Qt5::Widgets)
\ No newline at end of file
+add_executable(${PROJECT_NAME} main.cpp treemodel.h treemodel.cpp treeitem.h treeitem.cpp)
+target_link_libraries(${PROJECT_NAME} Qt5::Widgets easy_profiler)
diff --git a/profiler_gui/main.cpp b/profiler_gui/main.cpp
index 3699b9a..ea4335d 100644
--- a/profiler_gui/main.cpp
+++ b/profiler_gui/main.cpp
@@ -1,18 +1,26 @@
 #include <QApplication>
 #include <QTreeView>
 #include <QFileSystemModel>
+#include "treemodel.h"
 
 int main(int argc, char **argv)
 {
 	QApplication app(argc, argv);
 
 
-	QFileSystemModel *model = new QFileSystemModel;
-	model->setRootPath(QDir::currentPath());
+	//QFileSystemModel *model = new QFileSystemModel;
+	//model->setRootPath(QDir::currentPath());
+
+    QFile file("/home/yse/projects/easy_profiler/bin/test.prof");
+	file.open(QIODevice::ReadOnly);
+    TreeModel model(file.readAll());
+	file.close();
+
+
 	QTreeView *tree = new QTreeView();
-	tree->setModel(model);
+	tree->setModel(&model);
 
 	tree->show();
 
-	return app.exec();
-}
\ No newline at end of file
+	return app.exec(	);
+}
diff --git a/profiler_gui/treeitem.cpp b/profiler_gui/treeitem.cpp
new file mode 100644
index 0000000..66daaef
--- /dev/null
+++ b/profiler_gui/treeitem.cpp
@@ -0,0 +1,52 @@
+#include <QStringList>
+
+#include "treeitem.h"
+
+TreeItem::TreeItem(const QList<QVariant> &data, TreeItem *parent)
+{
+    m_parentItem = parent;
+    m_itemData = data;
+}
+
+TreeItem::~TreeItem()
+{
+    qDeleteAll(m_childItems);
+}
+
+void TreeItem::appendChild(TreeItem *item)
+{
+    m_childItems.append(item);
+}
+
+TreeItem *TreeItem::child(int row)
+{
+    return m_childItems.value(row);
+}
+
+int TreeItem::childCount() const
+{
+    return m_childItems.count();
+}
+
+int TreeItem::columnCount() const
+{
+    return m_itemData.count();
+}
+
+QVariant TreeItem::data(int column) const
+{
+    return m_itemData.value(column);
+}
+
+TreeItem *TreeItem::parentItem()
+{
+    return m_parentItem;
+}
+
+int TreeItem::row() const
+{
+    if (m_parentItem)
+        return m_parentItem->m_childItems.indexOf(const_cast<TreeItem*>(this));
+
+    return 0;
+}
\ No newline at end of file
diff --git a/profiler_gui/treeitem.h b/profiler_gui/treeitem.h
new file mode 100644
index 0000000..92802a5
--- /dev/null
+++ b/profiler_gui/treeitem.h
@@ -0,0 +1,28 @@
+#ifndef TREEITEM_H
+#define TREEITEM_H
+
+#include <QList>
+#include <QVariant>
+
+class TreeItem
+{
+public:
+    explicit TreeItem(const QList<QVariant> &data, TreeItem *parentItem = 0);
+    ~TreeItem();
+
+    void appendChild(TreeItem *child);
+
+    TreeItem *child(int row);
+    int childCount() const;
+    int columnCount() const;
+    QVariant data(int column) const;
+    int row() const;
+    TreeItem *parentItem();
+
+private:
+    QList<TreeItem*> m_childItems;
+    QList<QVariant> m_itemData;
+    TreeItem *m_parentItem;
+};
+
+#endif // TREEITEM_H
\ No newline at end of file
diff --git a/profiler_gui/treemodel.cpp b/profiler_gui/treemodel.cpp
new file mode 100644
index 0000000..6d0abd3
--- /dev/null
+++ b/profiler_gui/treemodel.cpp
@@ -0,0 +1,264 @@
+#include "treeitem.h"
+#include "treemodel.h"
+#include "profiler/profiler.h"
+#include <QStringList>
+#include <QDataStream>
+#include <QDebug>
+
+TreeModel::TreeModel(const QByteArray &data, QObject *parent)
+        : QAbstractItemModel(parent)
+{
+    QList<QVariant> rootData;
+    rootData << "Name" << "Duration usec" << "thread id" << "begin";
+    m_rootItem = new TreeItem(rootData);
+    setupModelData(data, m_rootItem);
+}
+
+TreeModel::~TreeModel()
+{
+    delete m_rootItem;
+}
+
+int TreeModel::columnCount(const QModelIndex &parent) const
+{
+    if (parent.isValid())
+        return static_cast<TreeItem*>(parent.internalPointer())->columnCount();
+    else
+        return m_rootItem->columnCount();
+}
+
+QVariant TreeModel::data(const QModelIndex &index, int role) const
+{
+    if (!index.isValid())
+        return QVariant();
+
+    if (role != Qt::DisplayRole)
+        return QVariant();
+
+    TreeItem *item = static_cast<TreeItem*>(index.internalPointer());
+
+    return item->data(index.column());
+}
+
+Qt::ItemFlags TreeModel::flags(const QModelIndex &index) const
+{
+    if (!index.isValid())
+        return 0;
+
+    return QAbstractItemModel::flags(index);
+}
+
+QVariant TreeModel::headerData(int section, Qt::Orientation orientation,
+                               int role) const
+{
+    if (orientation == Qt::Horizontal && role == Qt::DisplayRole)
+        return m_rootItem->data(section);
+
+    return QVariant();
+}
+
+QModelIndex TreeModel::index(int row, int column, const QModelIndex &parent)
+const
+{
+    if (!hasIndex(row, column, parent))
+        return QModelIndex();
+
+    TreeItem *parentItem;
+
+    if (!parent.isValid())
+        parentItem = m_rootItem;
+    else
+        parentItem = static_cast<TreeItem*>(parent.internalPointer());
+
+    TreeItem *childItem = parentItem->child(row);
+    if (childItem)
+        return createIndex(row, column, childItem);
+    else
+        return QModelIndex();
+}
+
+QModelIndex TreeModel::parent(const QModelIndex &index) const
+{
+    if (!index.isValid())
+        return QModelIndex();
+
+    TreeItem *childItem = static_cast<TreeItem*>(index.internalPointer());
+    TreeItem *parentItem = childItem->parentItem();
+
+    if (parentItem == m_rootItem)
+        return QModelIndex();
+
+    return createIndex(parentItem->row(), 0, parentItem);
+}
+
+int TreeModel::rowCount(const QModelIndex &parent) const
+{
+    TreeItem *parentItem;
+    if (parent.column() > 0)
+        return 0;
+
+    if (!parent.isValid())
+        parentItem = m_rootItem;
+    else
+        parentItem = static_cast<TreeItem*>(parent.internalPointer());
+
+    return parentItem->childCount();
+}
+
+
+
+void TreeModel::setupModelData(const QByteArray &lines, TreeItem *parent)
+{
+    QList<TreeItem*> parents;
+    QList<int> indentations;
+
+    indentations << 0;
+
+    typedef std::map<profiler::timestamp_t, profiler::SerilizedBlock> blocks_map_t;
+    typedef std::map<size_t, blocks_map_t> thread_map_t;
+    thread_map_t blocksList;
+    QByteArray array(lines);
+    QDataStream io(&array,QIODevice::ReadOnly);
+
+
+
+
+    while(!io.atEnd()){
+        uint16_t sz = 0;
+        io.readRawData((char*)&sz,sizeof(sz));
+        char* data = new char[sz];
+        io.readRawData(data,sz);
+        profiler::BaseBlockData* baseData = (profiler::BaseBlockData*)data;
+        blocksList[baseData->getThreadId()].emplace(
+                    baseData->getBegin(),
+                    std::move(profiler::SerilizedBlock(sz, data)));
+    }
+
+
+
+
+    for (auto& threads_list : blocksList){
+
+        std::list<const profiler::BaseBlockData *> parents_blocks;
+        parents.clear();
+        parents << parent;
+
+        for (auto& i : threads_list.second){
+            QList<QVariant> columnData;
+            const profiler::BaseBlockData * _block = i.second.block();
+
+            profiler::timestamp_t _end =  _block->getEnd();
+            profiler::timestamp_t _begin =  _block->getBegin();
+
+            columnData << i.second.getBlockName();
+            columnData << QVariant::fromValue(_block->duration());
+            columnData << QVariant::fromValue(_block->getThreadId());
+
+
+
+            if(parents_blocks.empty()){
+                parents_blocks.push_back(_block);
+                parents << parents.last();
+            }else{
+
+                auto& last_block_in_stack = parents_blocks.back();
+                auto last_block_end = last_block_in_stack->getEnd();
+
+                if(_begin >= last_block_end){
+                    parents_blocks.pop_back();
+                    parents.pop_back();
+
+                    for(std::list<const profiler::BaseBlockData *>::reverse_iterator it = parents_blocks.rbegin(); it != parents_blocks.rend();){
+                        last_block_end = (*it)->getEnd();
+
+                        if(_end <= last_block_end){
+                            break;
+                        }else{
+                            parents_blocks.erase( std::next(it).base() );
+                            parents.pop_back();
+                        }
+                    }
+
+                    parents_blocks.push_back(_block);
+                    if(parents.size() > 1){
+                        parents << parents.last()->child(parents.last()->childCount()-1);
+                    }else{
+                        parents << parents.last();
+                    }
+
+
+                }else if(_end <= last_block_end){
+                    //child
+
+                    parents_blocks.push_back(_block);
+                    if(parents.size() > 1){
+                        parents << parents.last()->child(parents.last()->childCount()-1);
+                    }else{
+                        parents << parents.last();
+                    }
+                }
+            }
+
+
+
+
+
+
+
+
+            columnData << QVariant::fromValue(_block->getBegin() - _begin);
+
+            if(_block->getType() == profiler::BLOCK_TYPE_BLOCK){
+                parents.last()->appendChild(new TreeItem(columnData, parents.last()));
+            }else{
+                //parents.last()->appendChild(new TreeItem(columnData, parent));
+            }
+
+        }
+
+    }
+
+
+
+    return;
+/*
+    while (number < lines.count()) {
+        int position = 0;
+        while (position < lines[number].length()) {
+            if (lines[number].at(position) != ' ')
+                break;
+            position++;
+        }
+
+        QString lineData = lines[number].mid(position).trimmed();
+
+        if (!lineData.isEmpty()) {
+            // Read the column data from the rest of the line.
+            QStringList columnStrings = lineData.split("\t", QString::SkipEmptyParts);
+            QList<QVariant> columnData;
+            for (int column = 0; column < columnStrings.count(); ++column)
+                columnData << columnStrings[column];
+
+            if (position > indentations.last()) {
+                // The last child of the current parent is now the new parent
+                // unless the current parent has no children.
+
+                if (parents.last()->childCount() > 0) {
+                    parents << parents.last()->child(parents.last()->childCount()-1);
+                    indentations << position;
+                }
+            } else {
+                while (position < indentations.last() && parents.count() > 0) {
+                    parents.pop_back();
+                    indentations.pop_back();
+                }
+            }
+
+            // Append a new item to the current parent's list of children.
+            parents.last()->appendChild(new TreeItem(columnData, parents.last()));
+        }
+
+        ++number;
+    }
+    */
+}
diff --git a/profiler_gui/treemodel.h b/profiler_gui/treemodel.h
new file mode 100644
index 0000000..95856c9
--- /dev/null
+++ b/profiler_gui/treemodel.h
@@ -0,0 +1,34 @@
+#ifndef TREEMODEL_H
+#define TREEMODEL_H
+
+#include <QAbstractItemModel>
+#include <QModelIndex>
+#include <QVariant>
+
+class TreeItem;
+
+class TreeModel : public QAbstractItemModel
+{
+    Q_OBJECT
+
+public:
+    explicit TreeModel(const QByteArray &data, QObject *parent = 0);
+    ~TreeModel();
+
+    QVariant data(const QModelIndex &index, int role) const Q_DECL_OVERRIDE;
+    Qt::ItemFlags flags(const QModelIndex &index) const Q_DECL_OVERRIDE;
+    QVariant headerData(int section, Qt::Orientation orientation,
+                        int role = Qt::DisplayRole) const Q_DECL_OVERRIDE;
+    QModelIndex index(int row, int column,
+                      const QModelIndex &parent = QModelIndex()) const Q_DECL_OVERRIDE;
+    QModelIndex parent(const QModelIndex &index) const Q_DECL_OVERRIDE;
+    int rowCount(const QModelIndex &parent = QModelIndex()) const Q_DECL_OVERRIDE;
+    int columnCount(const QModelIndex &parent = QModelIndex()) const Q_DECL_OVERRIDE;
+
+private:
+    void setupModelData(const QByteArray &lines, TreeItem *parent);
+
+    TreeItem *m_rootItem;
+};
+
+#endif // TREEMODEL_H
diff --git a/sample/main.cpp b/sample/main.cpp
index 956bde4..4b40187 100644
--- a/sample/main.cpp
+++ b/sample/main.cpp
@@ -9,14 +9,33 @@ void loadingResources(){
 	std::this_thread::sleep_for(std::chrono::milliseconds(500));
 }
 
+
+
 void prepareMath(){
 	PROFILER_BEGIN_FUNCTION_BLOCK_GROUPED(profiler::colors::Blue);
 	std::this_thread::sleep_for(std::chrono::milliseconds(2));
 }
 
+void calcIntersect(){
+    PROFILER_BEGIN_FUNCTION_BLOCK_GROUPED(profiler::colors::Blue);
+    std::this_thread::sleep_for(std::chrono::microseconds(700));
+}
+
+void calcPhys(){
+    PROFILER_BEGIN_FUNCTION_BLOCK_GROUPED(profiler::colors::Blue);
+    calcIntersect();
+}
+
+void calcBrain(){
+    PROFILER_BEGIN_FUNCTION_BLOCK_GROUPED(profiler::colors::Blue);
+    std::this_thread::sleep_for(std::chrono::microseconds(300));
+}
+
 void calculateBehavior(){
 	PROFILER_BEGIN_FUNCTION_BLOCK_GROUPED(profiler::colors::Lightblue);
 	std::this_thread::sleep_for(std::chrono::milliseconds(3));
+    calcPhys();
+    calcBrain();
 }
 
 void modellingStep(){