Shotwell does do readahead (and readbehind) caching of images. It caches 5 images total: the one you're viewing, the two ahead of it, and the two behind it. Generally Shotwell is quick in getting them on the screen when you select Next or Previous Photo.
If you're on a slow machine and double-click an image and immediately choose Next or Previous image, I can see how this might be slow, as the images are still being fetched in the background. If you wait a moment and then try it, even on a slow machine this should be acceptable, as by that time the images are in memory and it's just a matter of getting them on the screen. One question for both of you: Are your processors single-core? How much memory do your machines have? And, are you trying to view images you've edited with Shotwell (crop, rotate, color adjustment, auto-enhance) or are they "pristine"? -- Jim On Thu, Mar 10, 2011 at 7:37 AM, Michal Nanasi <[email protected]> wrote: > Hi, > > I use Olympus raws (.ORG) and I have similar problem too (my CPU is more > than 5 years old, 1.5ghz celeron M). But I have an idea for solution. In > the time, that the user is watching photo (and shotwell does not do > anything) shotwell should preload next and previous photos (maybe more > that one), so the the switching between photos will be instant if you > spend some time looking/editing the photo. This feature will be also > usefull, if you want to show your pictures to friends, when waiting a > few second is not really acceptable. > > Michal > > On Thu, 2011-03-10 at 08:31 +0000, Andreas F wrote: > > Hi > > > > I'm a Shotwell novice so pardon my ignorance. > > > > I have tried to use Shotwell with Canon raw (.CRW) images. These image > files are relatively large and requires a fair amount of CPU processing to > be rendered. When flipping between images (using arrow keys) is typically > takes 3-6 seconds from key press until the next image appears. In the mean > time there is no visual clue that the application is reacting to the > command, which is confusing. Would it be possible to add a visual clue > (e.g. turn mouse pointer into hourglass or similar)? > > > > Shotwell 0.7.2-0ubuntu2 on Linux 2.6.35. > > > > > _______________________________________________ > Shotwell mailing list > [email protected] > http://lists.yorba.org/cgi-bin/mailman/listinfo/shotwell > _______________________________________________ Shotwell mailing list [email protected] http://lists.yorba.org/cgi-bin/mailman/listinfo/shotwell
