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Ladybird+LibWebView: Add -P/--enable-callgrind-profiling option

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This adds a -P option to run Ladybird under callgrind. It starts with
instrumentation disabled. To start capturing a profile (once Ladybird
has launched) run `callgrind_control -i on` and to stop it again run
`callgrind_control -i off`.

P.s. This is pretty much stolen from Andreas (and is based on the patch
everyone [that wants a profile] have been manually applying).
This commit is contained in:
MacDue 2023-04-15 01:04:28 +01:00 • committed by Andreas Kling
parent 5db1eb9961
commit 0329ddf46a
12 changed files with 52 additions and 26 deletions
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6
Ladybird/BrowserWindow.cpp
View file

@ -27,9 +27,11 @@
extern DeprecatedString s_serenity_resource_root;
extern Browser::Settings* s_settings;
BrowserWindow::BrowserWindow(Browser::CookieJar& cookie_jar, StringView webdriver_content_ipc_path)
BrowserWindow::BrowserWindow(Browser::CookieJar& cookie_jar, StringView webdriver_content_ipc_path, WebView::EnableCallgrindProfiling enable_callgrind_profiling)
: m_cookie_jar(cookie_jar)
, m_webdriver_content_ipc_path(webdriver_content_ipc_path)
, m_enable_callgrind_profiling(enable_callgrind_profiling)
{
m_tabs_container = new QTabWidget(this);
m_tabs_container->installEventFilter(this);
@ -348,7 +350,7 @@ void BrowserWindow::debug_request(DeprecatedString const& request, DeprecatedStr
Tab& BrowserWindow::new_tab(QString const& url, Web::HTML::ActivateTab activate_tab)
{
auto tab = make<Tab>(this, m_webdriver_content_ipc_path);
auto tab = make<Tab>(this, m_webdriver_content_ipc_path, m_enable_callgrind_profiling);
auto tab_ptr = tab.ptr();
m_tabs.append(std::move(tab));

3
Ladybird/BrowserWindow.h
View file

@ -26,7 +26,7 @@ class CookieJar;
class BrowserWindow : public QMainWindow {
Q_OBJECT
public:
explicit BrowserWindow(Browser::CookieJar&, StringView webdriver_content_ipc_path);
explicit BrowserWindow(Browser::CookieJar&, StringView webdriver_content_ipc_path, WebView::EnableCallgrindProfiling);
WebContentView& view() const { return m_current_tab->view(); }
@ -70,4 +70,5 @@ private:
Browser::CookieJar& m_cookie_jar;
StringView m_webdriver_content_ipc_path;
WebView::EnableCallgrindProfiling m_enable_callgrind_profiling;
};

4
Ladybird/Tab.cpp
View file

@ -20,7 +20,7 @@
extern DeprecatedString s_serenity_resource_root;
extern Browser::Settings* s_settings;
Tab::Tab(BrowserWindow* window, StringView webdriver_content_ipc_path)
Tab::Tab(BrowserWindow* window, StringView webdriver_content_ipc_path, WebView::EnableCallgrindProfiling enable_callgrind_profiling)
: QWidget(window)
, m_window(window)
{
@ -28,7 +28,7 @@ Tab::Tab(BrowserWindow* window, StringView webdriver_content_ipc_path)
m_layout->setSpacing(0);
m_layout->setContentsMargins(0, 0, 0, 0);
m_view = new WebContentView(webdriver_content_ipc_path);
m_view = new WebContentView(webdriver_content_ipc_path, enable_callgrind_profiling);
m_toolbar = new QToolBar(this);
m_location_edit = new LocationEdit(this);
m_reset_zoom_button = new QToolButton(m_toolbar);

2
Ladybird/Tab.h
View file

@ -24,7 +24,7 @@ class BrowserWindow;
class Tab final : public QWidget {
Q_OBJECT
public:
Tab(BrowserWindow* window, StringView webdriver_content_ipc_path);
Tab(BrowserWindow* window, StringView webdriver_content_ipc_path, WebView::EnableCallgrindProfiling);
WebContentView& view() { return *m_view; }

8
Ladybird/WebContentView.cpp
View file

@ -55,7 +55,7 @@
#include <QTimer>
#include <QToolTip>
WebContentView::WebContentView(StringView webdriver_content_ipc_path)
WebContentView::WebContentView(StringView webdriver_content_ipc_path, WebView::EnableCallgrindProfiling enable_callgrind_profiling)
: m_webdriver_content_ipc_path(webdriver_content_ipc_path)
{
setMouseTracking(true);
@ -76,7 +76,7 @@ WebContentView::WebContentView(StringView webdriver_content_ipc_path)
update_viewport_rect();
});
create_client();
create_client(enable_callgrind_profiling);
}
WebContentView::~WebContentView()
@ -599,12 +599,12 @@ void WebContentView::update_palette()
client().async_update_system_theme(make_system_theme_from_qt_palette(*this));
}
void WebContentView::create_client()
void WebContentView::create_client(WebView::EnableCallgrindProfiling enable_callgrind_profiling)
{
m_client_state = {};
auto candidate_web_content_paths = get_paths_for_helper_process("WebContent"sv).release_value_but_fixme_should_propagate_errors();
auto new_client = launch_web_content_process(candidate_web_content_paths).release_value_but_fixme_should_propagate_errors();
auto new_client = launch_web_content_process(candidate_web_content_paths, enable_callgrind_profiling).release_value_but_fixme_should_propagate_errors();
m_web_content_notifier.setSocket(new_client->socket().fd().value());
m_web_content_notifier.setEnabled(true);

4
Ladybird/WebContentView.h
View file

@ -47,7 +47,7 @@ class WebContentView final
, public WebView::ViewImplementation {
Q_OBJECT
public:
explicit WebContentView(StringView webdriver_content_ipc_path);
explicit WebContentView(StringView webdriver_content_ipc_path, WebView::EnableCallgrindProfiling);
virtual ~WebContentView() override;
Function<String(Web::HTML::ActivateTab)> on_new_tab;
@ -185,7 +185,7 @@ signals:
private:
// ^WebView::ViewImplementation
virtual void create_client() override;
virtual void create_client(WebView::EnableCallgrindProfiling = WebView::EnableCallgrindProfiling::No) override;
virtual void update_zoom() override;
void request_repaint();

4
Ladybird/main.cpp
View file

@ -67,11 +67,13 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
StringView raw_url;
StringView webdriver_content_ipc_path;
bool enable_callgrind_profiling = false;
Core::ArgsParser args_parser;
args_parser.set_general_help("The Ladybird web browser :^)");
args_parser.add_positional_argument(raw_url, "URL to open", "url", Core::ArgsParser::Required::No);
args_parser.add_option(webdriver_content_ipc_path, "Path to WebDriver IPC for WebContent", "webdriver-content-path", 0, "path");
args_parser.add_option(enable_callgrind_profiling, "Enable Callgrind profiling", "enable-callgrind-profiling", 'P');
args_parser.parse(arguments);
auto get_formatted_url = [&](StringView const& raw_url) -> ErrorOr<URL> {
@ -90,7 +92,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
auto cookie_jar = TRY(Browser::CookieJar::create(*database));
s_settings = adopt_own_if_nonnull(new Browser::Settings());
BrowserWindow window(cookie_jar, webdriver_content_ipc_path);
BrowserWindow window(cookie_jar, webdriver_content_ipc_path, enable_callgrind_profiling ? WebView::EnableCallgrindProfiling::Yes : WebView::EnableCallgrindProfiling::No);
window.setWindowTitle("Ladybird");
window.resize(800, 600);
window.show();