Imperfect, but working perf profiling

calibre-plugin/fff_plugin.py

@@ -10,27 +10,6 @@ __docformat__ = 'restructuredtext en'
 import fanficfare.six as six
 from fanficfare.six import ensure_text, string_types, text_type as unicode
 
-# from io import StringIO
-# import cProfile, pstats
-# from pstats import SortKey
-
-# def do_cprofile(func):
-#     def profiled_func(*args, **kwargs):
-#         profile = cProfile.Profile()
-#         try:
-#             profile.enable()
-#             result = func(*args, **kwargs)
-#             profile.disable()
-#             return result
-#         finally:
-#             # profile.print_stats()
-#             s = StringIO()
-#             sortby = SortKey.CUMULATIVE
-#             ps = pstats.Stats(profile, stream=s).sort_stats(sortby)
-#             ps.print_stats(20)
-#             print(s.getvalue())
-#     return profiled_func
-
 import logging
 logger = logging.getLogger(__name__)
 
@@ -91,6 +70,8 @@ from fanficfare.geturls import (
     get_urls_from_page, get_urls_from_text,get_urls_from_imap,
     get_urls_from_mime)
 
+from fanficfare.fff_profile import do_cprofile
+
 from calibre_plugins.fanficfare_plugin.fff_util import (
     get_fff_adapter, get_fff_config, get_fff_personalini,
     get_common_elements)
@@ -1304,7 +1285,7 @@ class FanFicFarePlugin(InterfaceAction):
         # let other exceptions percolate up.
         return adapter.getStoryMetadataOnly(get_cover=False)
 
-    # @do_cprofile
+    @do_cprofile
     def prep_download_loop(self,book,
                            options={'fileform':'epub',
                                     'collision':ADDNEW,
@@ -1900,7 +1881,7 @@ class FanFicFarePlugin(InterfaceAction):
         else:
             return None
 
-    # @do_cprofile
+    @do_cprofile
     def update_books_loop(self,book,db=None,
                           options={'fileform':'epub',
                                    'collision':ADDNEW,

calibre-plugin/jobs.py

@@ -24,12 +24,34 @@ try:
 except NameError:
     pass # load_translations() added in calibre 1.9
 
+from io import StringIO
+import cProfile, pstats
+from pstats import SortKey
+def do_cprofile(func):
+    def profiled_func(*args, **kwargs):
+        profile = cProfile.Profile()
+        try:
+            profile.enable()
+            result = func(*args, **kwargs)
+            profile.disable()
+            return result
+        finally:
+            # profile.print_stats()
+            s = StringIO()
+            sortby = SortKey.CUMULATIVE
+            ps = pstats.Stats(profile, stream=s).sort_stats(sortby)
+            ps.print_stats(20)
+            print(s.getvalue())
+    return profiled_func
+
+
 # ------------------------------------------------------------------------------
 #
 #              Functions to perform downloads using worker jobs
 #
 # ------------------------------------------------------------------------------
 
+@do_cprofile
 def do_download_worker_single(site,
                               book_list,
                               options,

fanficfare/cli.py

@@ -27,7 +27,6 @@ import pprint
 import string
 import os, sys, platform
 
-
 version="4.56.1"
 os.environ['CURRENT_VERSION_ID']=version
 
@@ -51,6 +50,8 @@ from fanficfare.geturls import get_urls_from_page, get_urls_from_imap
 from fanficfare.six.moves import configparser
 from fanficfare.six import text_type as unicode
 
+from fanficfare.fff_profile import do_cprofile
+
 def write_story(config, adapter, writeformat,
                 metaonly=False, nooutput=False,
                 outstream=None):
@@ -346,6 +347,7 @@ def main(argv=None,
     dispatch(options, urls, passed_defaultsini, passed_personalini, warn, fail)
 
 # make rest a function and loop on it.
+@do_cprofile
 def do_download(arg,
                 options,
                 passed_defaultsini,

fanficfare/fff_profile.py

@@ -0,0 +1,35 @@
+# Copyright 2026 FanFicFare team
+#
+# Licensed under the Apache License, Version 2.0 (the 'License');
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an 'AS IS' BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from io import StringIO
+import cProfile, pstats
+from pstats import SortKey
+def do_cprofile(func):
+    def profiled_func(*args, **kwargs):
+        profile = cProfile.Profile()
+        try:
+            profile.enable()
+            result = func(*args, **kwargs)
+            profile.disable()
+            return result
+        finally:
+            # profile.print_stats()
+            s = StringIO()
+            sortby = SortKey.CUMULATIVE
+            ps = pstats.Stats(profile, stream=s).sort_stats(sortby)
+            ps.print_stats(20)
+            print(s.getvalue())
+    return profiled_func
+