broulik added a comment.
> every time I changed konsole tabs, saved a file in kate, the appDataFromUrl (missed the cache) was called. Whenever `NET::WMVisibleName ` changes, both caches are evicted. It might be worth checking what's more expensive to create, the `KWindowInfo` or `AppData` and then use one or the other depending on it, e.g. use the `KWindowInfo` for the `visibleName` and don't nuke the `appDataCache` when that changes, or so. I'm not very familiar with that codebase. INLINE COMMENTS > xwindowtasksmodel.cpp:330 > wipeInfoCache = true; > - wipeAppDataCache = true; > changedRoles << Qt::DisplayRole << Qt::DecorationRole << AppId << > AppName << GenericName << LauncherUrl << AppPid; However, just *not* killing the cache would lead to `DisplayRole`, `AppId`, `AppName`, `GenericName` not updating as these are taken from `appData` in `data()` REPOSITORY R120 Plasma Workspace REVISION DETAIL https://phabricator.kde.org/D10342 To: jtamate, #plasma_workspaces Cc: broulik, plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
