On Friday 25 June 2010 19:41:11 Kris Moore wrote: > On 06/25/2010 12:37, Tijl Coosemans wrote: >> KDE currently uses polling to detect file and directory changes on >> FreeBSD, which can use up cpu time (and laptop battery power). The >> kded4 process seems to make heavy use of this and currently >> continuously consumes about 5% of my cpu and often causes it to be >> throttled up by powerd. >> >> I've attached a patch that makes KDE use QFileSystemWatcher on >> FreeBSD which uses kqueue instead of stat. I've been using it for >> the past few days and it seems to work rather well. >> >> One thing I'm not sure about is whether it works with NFS, so it >> could use some more testing. If you'd like to test it, replace >> /usr/ports/x11/kdelibs4/files/patch-kio-kio-kdirwatch.cpp with the >> attached patch and reinstall kdelibs. > > Just built with this patch here. It does greatly improve my kdeinit4 > processes, went from a constant 8-10% to 0-1%. > > However, it does mess up NFS. When browsing my NFS mounts it doesn't > show any directory/file changes until I manually refresh the view. > Is this something fixable?
It can be fixed in Qt or in KDE. Both already provide polling as a fallback and it would be easy to add some logic similar to what devel/gamin does (call statfs(2) on the given path and use kqueue when MNT_LOCAL is set, polling otherwise). For now, you can also add the following to your ~/.kderc: [DirWatch] nfsPreferredMethod=Stat _______________________________________________ kde-freebsd mailing list kde-freebsd@kde.org https://mail.kde.org/mailman/listinfo/kde-freebsd See also http://freebsd.kde.org/ for latest information
