jtamate created this revision. jtamate added a reviewer: Kate. Restricted Application added projects: Kate, Frameworks. Restricted Application added a subscriber: Frameworks. jtamate requested review of this revision.
REVISION SUMMARY Calculate the list of keys of a hash table is quite expensive. It is cheaper to keep that list and change it when a view is created or removed. TEST PLAN Run kwrite and paste a relative long text several times and then undo until the text is empty, with only one view. Before: F5821740: kwrite_before.png <https://phabricator.kde.org/F5821740> it used 65% of cpu in Kate::TextBuffer::notifyAboutRangeChange After: F5821746: kwrite_after.png <https://phabricator.kde.org/F5821746> it uses 19% of cpu in in Kate::TextBuffer::notifyAboutRangeChange REPOSITORY R39 KTextEditor REVISION DETAIL https://phabricator.kde.org/D12511 AFFECTED FILES src/document/katedocument.cpp src/document/katedocument.h To: jtamate, #kate Cc: #frameworks, michaelh, kevinapavew, ngraham, bruns, demsking, cullmann, sars, dhaumann
