[Bug 151874] KIconLoader fails to cache some images

[Aaron J.Seigo]

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http://bugs.kde.org/show_bug.cgi?id=151874         




------- Additional Comments From aseigo kde org  2007-11-05 03:48 -------
are you sure it isn't being put into the cache, and that a generally slow path is being taken in KIconLoader::loadIcon? it might be useful to see exactly what path is being taken in KIconLoader::loadIcon in this case. what is the exact call you are making to loadIcon?

there's a good amount of optimization that can be done n loadIcon, but without some time spent profiling that method it's hard to know what would have the most useful effect.

i'd also question why the icon is being loaded via the icon loader on each repaint in the first place versus simply holding onto a [QK]Icon somewhere. no matter how fast KIconLoader is, that would seem to be a better way to go.

in any case, i have a small icon load timer tester, but it's probably not using the same paths you are...

in it i have 3 loops that iterate each 1000 times. the first one loads 4 different toolbar icons, the second one loads 82 different toolbar icons, the third one loads 6 different User icons..

time for each loop: ~160ms, ~4.5s, ~200ms .. after the cash is populated, the second loop drops to ~3.7s and the User group loop drops to ~120ms.

which says to me that you're must be pushing something like 21k requests to kiconloader or else take a much slower path than my little app is testing. so, more information would be great here.