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ProfileViewer: Add an instruction-level sample viewer

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When you select a function in the profile tree, we will now display
a per-instruction breakdown of aggregated samples in that function.

This allows us to look much closer at what our code is doing! :^)
This commit is contained in:
Andreas Kling 2020-04-11 18:46:11 +02:00
parent 5b91d848a7
commit 69583f07e0
7 changed files with 267 additions and 6 deletions
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26
DevTools/ProfileViewer/Profile.h
View file

@ -32,8 +32,10 @@
#include <AK/NonnullRefPtrVector.h>
#include <AK/OwnPtr.h>
#include <LibGUI/Forward.h>
#include <LibGUI/ModelIndex.h>
class ProfileModel;
class DisassemblyModel;
class ProfileNode : public RefCounted<ProfileNode> {
public:
@ -83,6 +85,16 @@ public:
void sort_children();
const HashMap<FlatPtr, size_t>& events_per_address() const { return m_events_per_address; }
void add_event_address(FlatPtr address)
{
auto it = m_events_per_address.find(address);
if (it == m_events_per_address.end())
m_events_per_address.set(address, 1);
else
m_events_per_address.set(address, it->value + 1);
}
private:
explicit ProfileNode(const String& symbol, u32 address, u32 offset, u64 timestamp)
: m_symbol(symbol)
@ -100,6 +112,7 @@ private:
u32 m_self_count { 0 };
u64 m_timestamp { 0 };
Vector<NonnullRefPtr<ProfileNode>> m_children;
HashMap<FlatPtr, size_t> m_events_per_address;
};
class Profile {
@ -108,6 +121,9 @@ public:
~Profile();
GUI::Model& model();
GUI::Model* disassembly_model();
void set_disassembly_index(const GUI::ModelIndex&);
const Vector<NonnullRefPtr<ProfileNode>>& roots() const { return m_roots; }
@ -145,12 +161,20 @@ public:
bool show_percentages() const { return m_show_percentages; }
void set_show_percentages(bool);
const String& executable_path() const { return m_executable_path; }
private:
explicit Profile(Vector<Event>);
Profile(String executable_path, Vector<Event>);
void rebuild_tree();
String m_executable_path;
RefPtr<ProfileModel> m_model;
RefPtr<DisassemblyModel> m_disassembly_model;
GUI::ModelIndex m_disassembly_index;
Vector<NonnullRefPtr<ProfileNode>> m_roots;
u32 m_filtered_event_count { 0 };
u64 m_first_timestamp { 0 };