[Kde-print-devel] [Bug 135975] kjobviewer is unbelievable slow

Kurt Pfeifle pfeifle at kde.org
Tue Jan 9 17:23:04 CET 2007

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------- Additional Comments From pfeifle kde org  2007-01-09 17:23 -------
Felix, to what specific value had you set kjobviewer instead of its default 5 sec? Try a value that is bigger than what you need on the commandline with "lpstat". Try 30, 45, 60 and 90 seconds as well.

One other tweak that may speed it up: set the "Maximum number of jobs shown".

Do you really *need* all 807 (or more) jobs shown in CUPS' job history? You can limit that to whatever value you want by setting "MaxJobs" in cupsd.conf...

Also note, CUPS 1.1.x itself *is* slowing down (FC3) and doesn't scale very much for *very* large lists of jobs and printers. This is because all local CUPS communcation happens through an IP socket (loopback localhost:631).

CUPS 1.2.x is much faster for this kind of stuff (locally), because it sports and addition Unix domain socket for local communication between client programs and server parts.

However, I am currently not sure if KDE-3.5.5 is really adapted to full domain socket support (there were a few bug reports in the summer which indicated complete failure to even connect), or if we just disabled it and only use localhost:631 for now.

(I didn't have a Linux system for more than half a year, but I will test this now more closely over the next few days/weeks while I sift thru the bugs database...)

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