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ProfileViewer: Add a timeline widget for a visual view of the profile

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Userspace stack frames are in blue, kernel stack frames in red :^)
This commit is contained in:
Andreas Kling 2019-12-14 18:44:29 +01:00
parent 46a57c7f59
commit a3e7c99ffe
6 changed files with 121 additions and 16 deletions
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29
DevTools/ProfileViewer/Profile.h
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@ -11,14 +11,15 @@ class ProfileModel;
class ProfileNode : public RefCounted<ProfileNode> {
public:
static NonnullRefPtr<ProfileNode> create(const String& symbol, u32 address, u32 offset)
static NonnullRefPtr<ProfileNode> create(const String& symbol, u32 address, u32 offset, u64 timestamp)
{
return adopt(*new ProfileNode(symbol, address, offset));
return adopt(*new ProfileNode(symbol, address, offset, timestamp));
}
const String& symbol() const { return m_symbol; }
u32 address() const { return m_address; }
u32 offset() const { return m_offset; }
u64 timestamp() const { return m_timestamp; }
u32 sample_count() const { return m_sample_count; }
@ -34,7 +35,7 @@ public:
m_children.append(child);
}
ProfileNode& find_or_create_child(const String& symbol, u32 address, u32 offset)
ProfileNode& find_or_create_child(const String& symbol, u32 address, u32 offset, u64 timestamp)
{
for (int i = 0; i < m_children.size(); ++i) {
auto& child = m_children[i];
@ -42,7 +43,7 @@ public:
return child;
}
}
auto new_child = ProfileNode::create(symbol, address, offset);
auto new_child = ProfileNode::create(symbol, address, offset, timestamp);
add_child(new_child);
return new_child;
};
@ -55,10 +56,11 @@ public:
void sort_children();
private:
explicit ProfileNode(const String& symbol, u32 address, u32 offset)
explicit ProfileNode(const String& symbol, u32 address, u32 offset, u64 timestamp)
: m_symbol(symbol)
, m_address(address)
, m_offset(offset)
, m_timestamp(timestamp)
{
}
@ -67,6 +69,7 @@ private:
u32 m_address { 0 };
u32 m_offset { 0 };
u32 m_sample_count { 0 };
u64 m_timestamp { 0 };
Vector<NonnullRefPtr<ProfileNode>> m_children;
};
@ -79,10 +82,24 @@ public:
const Vector<NonnullRefPtr<ProfileNode>>& roots() const { return m_roots; }
template<typename Callback>
void for_each_sample(Callback callback)
{
m_json.for_each([&](auto& value) {
callback(value.as_object());
});
}
u64 length_in_ms() const { return m_last_timestamp - m_first_timestamp; }
u64 first_timestamp() const { return m_first_timestamp; }
u64 last_timestamp() const { return m_first_timestamp; }
private:
explicit Profile(const JsonArray&, Vector<NonnullRefPtr<ProfileNode>>&&);
explicit Profile(const JsonArray&, Vector<NonnullRefPtr<ProfileNode>>&&, u64 first_timestamp, u64 last_timestamp);
JsonArray m_json;
RefPtr<ProfileModel> m_model;
Vector<NonnullRefPtr<ProfileNode>> m_roots;
u64 m_first_timestamp { 0 };
u64 m_last_timestamp { 0 };
};