** Description changed: - We first noticed this after the migration to Qt 5.2 and using the - Reminders app: in summary, when editing a note the application becomes - unresponsive on the phone and the CPU goes to 100% on the desktop (there - it's not too noticeable). + [Impact] + Performance regression from saucy in sorted lists, due to lacking a proper way to support layoutChange. + + [Test Case] + We first noticed this after the migration to Qt 5.2 and using the Reminders app: in summary, when editing a note the application becomes unresponsive on the phone and the CPU goes to 100% on the desktop (there it's not too noticeable). + + [Regression Potential] + No regressions spotted in utopic with the same patch. + + --- + We first noticed this after the migration to Qt 5.2 and using the Reminders app: in summary, when editing a note the application becomes unresponsive on the phone and the CPU goes to 100% on the desktop (there it's not too noticeable). After a chat with mzanetti, this is related to an upstream patch that should have probably been implemented differently, and it's now reported in the upstream tracker [1]. This will affect every app using a sorted list on the phone [1] https://bugreports.qt-project.org/browse/QTBUG-37983
** Description changed: [Impact] Performance regression from saucy in sorted lists, due to lacking a proper way to support layoutChange. [Test Case] We first noticed this after the migration to Qt 5.2 and using the Reminders app: in summary, when editing a note the application becomes unresponsive on the phone and the CPU goes to 100% on the desktop (there it's not too noticeable). [Regression Potential] - No regressions spotted in utopic with the same patch. + No regressions spotted in utopic with the same patch. List views could be the place where also potential regression would be seen most likely. --- We first noticed this after the migration to Qt 5.2 and using the Reminders app: in summary, when editing a note the application becomes unresponsive on the phone and the CPU goes to 100% on the desktop (there it's not too noticeable). After a chat with mzanetti, this is related to an upstream patch that should have probably been implemented differently, and it's now reported in the upstream tracker [1]. This will affect every app using a sorted list on the phone [1] https://bugreports.qt-project.org/browse/QTBUG-37983 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1303746 Title: Performance hit when editing sorted lists To manage notifications about this bug go to: https://bugs.launchpad.net/reminders-app/+bug/1303746/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
