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https://github.com/RGBCube/serenity
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Profiler: Split the call tree into one subtree per process
This patch adds an additional level of hierarchy to the call tree: Every process gets its own top-level node. :^) Before this, selecting multiple processes would get quite confusing as all the call stacks from different processes were combined together into one big tree.
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parent
65a341b82f
commit
8a5c78e93b
5 changed files with 49 additions and 27 deletions
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@ -61,13 +61,13 @@ void Profile::rebuild_tree()
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{
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Vector<NonnullRefPtr<ProfileNode>> roots;
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auto find_or_create_root = [&roots](FlyString object_name, String symbol, u32 address, u32 offset, u64 timestamp, pid_t pid) -> ProfileNode& {
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auto find_or_create_process_node = [this, &roots](pid_t pid, u64 timestamp) -> ProfileNode& {
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auto& process = *find_process(pid, timestamp);
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for (auto root : roots) {
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if (root->symbol() == symbol) {
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if (&root->process() == &process)
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return root;
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}
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}
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auto new_root = ProfileNode::create(move(object_name), move(symbol), address, offset, timestamp, pid);
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auto new_root = ProfileNode::create_process_node(process);
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roots.append(new_root);
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return new_root;
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};
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@ -119,6 +119,8 @@ void Profile::rebuild_tree()
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if (!m_show_top_functions) {
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ProfileNode* node = nullptr;
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auto& process_node = find_or_create_process_node(event.pid, event.timestamp);
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process_node.increment_event_count();
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for_each_frame([&](const Frame& frame, bool is_innermost_frame) {
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auto& object_name = frame.object_name;
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auto& symbol = frame.symbol;
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@ -130,9 +132,8 @@ void Profile::rebuild_tree()
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// FIXME: More cheating with intentional mixing of TID/PID here:
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if (!node)
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node = &find_or_create_root(object_name, symbol, address, offset, event.timestamp, event.pid);
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else
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node = &node->find_or_create_child(object_name, symbol, address, offset, event.timestamp, event.pid);
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node = &process_node;
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node = &node->find_or_create_child(object_name, symbol, address, offset, event.timestamp, event.pid);
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node->increment_event_count();
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if (is_innermost_frame) {
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@ -142,6 +143,8 @@ void Profile::rebuild_tree()
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return IterationDecision::Continue;
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});
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} else {
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auto& process_node = find_or_create_process_node(event.pid, event.timestamp);
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process_node.increment_event_count();
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for (size_t i = 0; i < event.frames.size(); ++i) {
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ProfileNode* node = nullptr;
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ProfileNode* root = nullptr;
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@ -156,7 +159,8 @@ void Profile::rebuild_tree()
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// FIXME: More PID/TID mixing cheats here:
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if (!node) {
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node = &find_or_create_root(object_name, symbol, address, offset, event.timestamp, event.pid);
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node = &find_or_create_process_node(event.pid, event.timestamp);
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node = &node->find_or_create_child(object_name, symbol, address, offset, event.timestamp, event.pid);
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root = node;
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root->will_track_seen_events(m_events.size());
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} else {
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@ -248,6 +252,7 @@ Result<NonnullOwnPtr<Profile>, String> Profile::load_from_perfcore_file(const St
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auto sampled_process = adopt_own(*new Process {
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.pid = event.pid,
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.executable = event.executable,
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.basename = LexicalPath(event.executable).basename(),
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.start_valid = event.timestamp,
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});
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@ -265,6 +270,7 @@ Result<NonnullOwnPtr<Profile>, String> Profile::load_from_perfcore_file(const St
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auto sampled_process = adopt_own(*new Process {
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.pid = event.pid,
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.executable = event.executable,
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.basename = LexicalPath(event.executable).basename(),
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.start_valid = event.timestamp });
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current_processes.set(sampled_process->pid, sampled_process);
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@ -463,8 +469,15 @@ GUI::Model* Profile::disassembly_model()
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return m_disassembly_model;
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}
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ProfileNode::ProfileNode(const String& object_name, String symbol, u32 address, u32 offset, u64 timestamp, pid_t pid)
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: m_symbol(move(symbol))
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ProfileNode::ProfileNode(Process const& process)
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: m_root(true)
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, m_process(process)
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{
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}
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ProfileNode::ProfileNode(Process const& process, const String& object_name, String symbol, u32 address, u32 offset, u64 timestamp, pid_t pid)
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: m_process(process)
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, m_symbol(move(symbol))
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, m_pid(pid)
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, m_address(address)
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, m_offset(offset)
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@ -479,9 +492,4 @@ ProfileNode::ProfileNode(const String& object_name, String symbol, u32 address,
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m_object_name = LexicalPath(object).basename();
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}
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const Process* ProfileNode::process(Profile& profile, u64 timestamp) const
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{
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return profile.find_process(m_pid, timestamp);
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}
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}
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