Optimization in KDE-PIM
Volker Krause committed changes in /trunk/KDE/kdepimlibs/kimap:
Optimize some hotspots in the IMAP parser:
- avoid the non-const operator[] of QByteArray, it's slightly more expensive than the const version (or at()) and we call it several hundred million times during a mail check
- don't clear the internal parser buffer for every line received from the server, but only every 4kB of read data
Together this saves about 20% CPU time in the IMAP resource. It also uncovered a bug in the parser causing a out of bounds access to the internal buffer.
File Changes
Modified 2 files
/trunk/KDE/kdepimlibs/kimap
2 files changed in total