Akonadi::Server::CollectionStatistics
Akonadi::Server::CollectionStatistics Class Reference
#include <collectionstatistics.h>
Public Member Functions | |
CollectionStatistics (bool prefetch=true) | |
void | expireCache () |
void | invalidateCollection (const Collection &col) |
void | itemAdded (const Collection &col, qint64 size, bool seen) |
void | itemsSeenChanged (const Collection &col, qint64 seenCount) |
Statistics | statistics (const Collection &col) |
Protected Member Functions | |
virtual Statistics | calculateCollectionStatistics (const Collection &col) |
QueryBuilder | prepareGenericQuery () |
Protected Attributes | |
QHash< qint64, Statistics > | mCache |
QMutex | mCacheLock |
Detailed Description
Provides cache for collection statistics.
Collection statistics are requested very often, so to take some load from the database we cache the results until the statistics are invalidated (see NotificationCollector, which takes care for invalidating the statistics).
The cache (together with optimization of the actual SQL query) seems to massively improve initial folder listing on system start (when IO and CPU loads are very high).
Definition at line 32 of file server/storage/collectionstatistics.h.
The documentation for this class was generated from the following files:
This file is part of the KDE documentation.
Documentation copyright © 1996-2022 The KDE developers.
Generated on Mon Aug 8 2022 04:03:06 by doxygen 1.8.17 written by Dimitri van Heesch, © 1997-2006
Documentation copyright © 1996-2022 The KDE developers.
Generated on Mon Aug 8 2022 04:03:06 by doxygen 1.8.17 written by Dimitri van Heesch, © 1997-2006
KDE's Doxygen guidelines are available online.