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[Bill Filler <1529452@xxxxxxxxxxxxxxxxxx>]

** Changed in: gallery-app (Ubuntu)
     Assignee: (unassigned) => Arthur Mello (artmello)

** Changed in: canonical-devices-system-image
    Milestone: backlog => ww08-2016

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https://bugs.launchpad.net/bugs/1529452

Title:
  Gallery app asks for same image multiple times at different sizes

Status in Canonical System Image:
  Confirmed
Status in gallery-app package in Ubuntu:
  New
Status in thumbnailer package in Ubuntu:
  Triaged

Bug description:
  I'm seeing this with image 342 from rc-proposed.

  When starting the gallery app with around 300 photos in my Pictures
  folder, I just noticed the request sequence shown below. Note that all
  requests are for the same image and are issued pretty much all at
  once. (There is about half a second elapsed time between the first and
  the last request.) The requests keep changing the size only, starting
  at 342 and working their way down to 216. This is supremely
  inefficient because each of the requests results in a separate scaling
  operation. In addition, each of these requests ends up in the cache on
  disk, so this behavior really hammers the battery and reduces cache
  efficiency.

  thumbnailer-service: [09:25:36.825] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (342,342): 0.044376 sec (MISS)"
  thumbnailer-service: [09:25:36.899] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (341,341): 0.020540 sec (MISS)"
  thumbnailer-service: [09:25:36.942] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (340,340): 0.034030 sec (MISS)"
  thumbnailer-service: [09:25:37.068] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (338,338): 0.143506 sec (MISS)"
  thumbnailer-service: [09:25:37.095] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (335,335): 0.154219 sec (MISS)"
  thumbnailer-service: [09:25:37.126] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (332,332): 0.162185 sec (MISS)"
  thumbnailer-service: [09:25:37.145] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (326,326): 0.172134 sec (MISS)"
  thumbnailer-service: [09:25:37.167] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (318,318): 0.177231 sec (MISS)"
  thumbnailer-service: [09:25:37.188] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (307,307): 0.181870 sec (MISS)"
  thumbnailer-service: [09:25:37.205] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (292,292): 0.182084 sec (MISS)"
  thumbnailer-service: [09:25:37.223] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (273,292): 0.183793 sec (MISS)"
  thumbnailer-service: [09:25:37.238] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (273,273): 0.198290 sec (MISS)"
  thumbnailer-service: [09:25:37.369] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (250,273): 0.313627 sec (MISS)"
  thumbnailer-service: [09:25:37.391] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (250,250): 0.334533 sec (MISS)"
  thumbnailer-service: [09:25:37.402] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (218,218): 0.317747 sec (MISS)"
  thumbnailer-service: [09:25:37.405] "thumbnail: /home/phablet/Pictures/com.ubuntu.camera/image20151227_091023042.jpg (216,216): 0.310605 sec (HIT)"

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