https://bugs.kde.org/show_bug.cgi?id=346644
Bug ID: 346644
Summary: KF5/KMail Performance Bottleneck in
Akonadi::StatisticsProxyModel::data(...)
Product: kdepimlibs
Version: GIT (master)
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: grave
Priority: NOR
Component: akonadi
Assignee: [email protected]
Reporter: [email protected]
About 50% of KMail's CPU time is spent via QIcon::fromTheme(QString &const,
QIcon const&), called via Akonadi::StatisticsProxyModel::data(...) in
statisticsproxymodel.cpp, line 427.
KF5/KMail is quite unresponsive due to this, even with a fast SSD on my
machine. Performance stats where tested via attaching perf. Replacing
QIcon::fromTheme( CollectionUtils::displayIconName( collection ) ) with a
simple "QIcon()" fixes my performance problems.
Probably caching the icon is the way to go here...
Reproducible: Always
Steps to Reproduce:
1. start KMail
2. happens :)
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