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Add some timing information for the various startup stages to the debug log

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Kovid Goyal 2018-02-27 09:20:52 +05:30
parent b376909e72
commit 92232ad34a
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 15 additions and 5 deletions
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20
src/calibre/gui2/main.py
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@ -27,6 +27,7 @@ from calibre.gui2.splash_screen import SplashScreen
from calibre.utils.config import dynamic, prefs from calibre.utils.config import dynamic, prefs
from calibre.utils.ipc import RC, gui_socket_address from calibre.utils.ipc import RC, gui_socket_address
from calibre.utils.lock import singleinstance from calibre.utils.lock import singleinstance
from calibre.utils.monotonic import monotonic
if iswindows: if iswindows:
winutil = plugins['winutil'][0] winutil = plugins['winutil'][0]
@ -212,7 +213,8 @@ class GuiRunner(QObject):
initialization''' initialization'''
def __init__(self, opts, args, actions, listener, app, gui_debug=None): def __init__(self, opts, args, actions, listener, app, gui_debug=None):
self.startup_time = time.time() self.startup_time = monotonic()
self.timed_print('Starting up...')
self.opts, self.args, self.listener, self.app = opts, args, listener, app self.opts, self.args, self.listener, self.app = opts, args, listener, app
self.gui_debug = gui_debug self.gui_debug = gui_debug
self.actions = actions self.actions = actions
@ -220,11 +222,14 @@ class GuiRunner(QObject):
QObject.__init__(self) QObject.__init__(self)
self.splash_screen = None self.splash_screen = None
self.timer = QTimer.singleShot(1, self.initialize) self.timer = QTimer.singleShot(1, self.initialize)
def timed_print(self, *a, **kw):
if DEBUG: if DEBUG:
prints('Starting up...') prints('[{:.2f}]'.format(monotonic() - self.startup_time), *a, **kw)
def start_gui(self, db): def start_gui(self, db):
from calibre.gui2.ui import Main from calibre.gui2.ui import Main
self.timed_print('Constructing main UI...')
main = self.main = Main(self.opts, gui_debug=self.gui_debug) main = self.main = Main(self.opts, gui_debug=self.gui_debug)
if self.splash_screen is not None: if self.splash_screen is not None:
self.splash_screen.show_message(_('Initializing user interface...')) self.splash_screen.show_message(_('Initializing user interface...'))
@ -232,12 +237,13 @@ class GuiRunner(QObject):
with gprefs: # Only write gui.json after initialization is complete with gprefs: # Only write gui.json after initialization is complete
main.initialize(self.library_path, db, self.listener, self.actions) main.initialize(self.library_path, db, self.listener, self.actions)
finally: finally:
self.timed_print('main UI initialized...')
if self.splash_screen is not None: if self.splash_screen is not None:
self.timed_print('Hiding splash screen')
self.splash_screen.finish(main) self.splash_screen.finish(main)
self.timed_print('splash screen hidden')
self.splash_screen = None self.splash_screen = None
if DEBUG: self.timed_print('Started up in %.2f seconds'%(monotonic() - self.startup_time), 'with', len(db.data), 'books')
prints('Started up in %.2f seconds'%(time.time() -
self.startup_time), 'with', len(db.data), 'books')
add_filesystem_book = partial(main.iactions['Add Books'].add_filesystem_book, allow_device=False) add_filesystem_book = partial(main.iactions['Add Books'].add_filesystem_book, allow_device=False)
main.set_exception_handler() main.set_exception_handler()
if len(self.args) > 1: if len(self.args) > 1:
@ -289,6 +295,7 @@ class GuiRunner(QObject):
det_msg=traceback.format_exc()) det_msg=traceback.format_exc())
self.initialization_failed() self.initialization_failed()
self.timed_print('db initialized')
try: try:
self.start_gui(db) self.start_gui(db)
except Exception: except Exception:
@ -300,6 +307,7 @@ class GuiRunner(QObject):
def initialize_db(self): def initialize_db(self):
from calibre.db.legacy import LibraryDatabase from calibre.db.legacy import LibraryDatabase
db = None db = None
self.timed_print('Initializing db...')
try: try:
db = LibraryDatabase(self.library_path) db = LibraryDatabase(self.library_path)
except apsw.Error: except apsw.Error:
@ -332,9 +340,11 @@ class GuiRunner(QObject):
self.initialize_db_stage2(db, None) self.initialize_db_stage2(db, None)
def show_splash_screen(self): def show_splash_screen(self):
self.timed_print('Showing splash screen...')
self.splash_screen = SplashScreen() self.splash_screen = SplashScreen()
self.splash_screen.show() self.splash_screen.show()
self.splash_screen.show_message(_('Starting %s: Loading books...') % __appname__) self.splash_screen.show_message(_('Starting %s: Loading books...') % __appname__)
self.timed_print('splash screen shown')
def hide_splash_screen(self): def hide_splash_screen(self):
if self.splash_screen is not None: if self.splash_screen is not None: