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The queue says what the scaling numbers answered

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Items 3 and 3b were done but still read as open questions, and thumbnail jank is no longer blocked on a device that cannot report it - the phone run does, and the CI emulator always will. The one item still open is the baseline profile's delta, which needs a physical API 33+ device.
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Hadrian Burkhardt
2026-10-17 23:01:48 +02:00
parent 66183a8596
commit 747a6f7784
1 changed files with 6 additions and 3 deletions
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docs/ROADMAP.md
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@@ -78,9 +78,12 @@ release should not go out without.
while decoding, and the image loader's caches are decided explicitly — memory only at 15 % of the heap, while decoding, and the image loader's caches are decided explicitly — memory only at 15 % of the heap,
no disk cache. The device pass is in [EDGE_CASE_TESTING](EDGE_CASE_TESTING.md): 6 200 files with 300 no disk cache. The device pass is in [EDGE_CASE_TESTING](EDGE_CASE_TESTING.md): 6 200 files with 300
images and a folder of 300 images, correct and stable, no crash or OOM. A 20 000-*image* folder is images and a folder of 300 images, correct and stable, no crash or OOM. A 20 000-*image* folder is
still unmeasured, and jank on this screen needs a device that reports frame durations. still unmeasured; jank on the screen is measurable now that both the phone run and the CI emulator
3. **The scaling numbers** — `./tools/benchmark-fixture.sh --count 20000` and the existing benchmarks: report `frameDurationCpuMs` (see [PERFORMANCE](PERFORMANCE.md)), but no test drives the photo grid yet.
answers whether a full SD card is a performance problem before a user with one finds out. 3. **The scaling numbers** — **done**: 1 000 → 12–14 frames to open, 5 000 → 41, 20 000 → 184 with a 598
outlier; the outlier was investigated and the real fix was progressive listing (200-entry batches,
O(n+k) merge), after which 20 000 files opens in **10–16 frames** with a 32–48 max across two runs. The
whole suite at that size, and what search costs there, is in [PERFORMANCE](PERFORMANCE.md).
4. **Copy to… / Move to… (M16)** — **done**: the selection bar's overflow opens a folder picker (volumes, 4. **Copy to… / Move to… (M16)** — **done**: the selection bar's overflow opens a folder picker (volumes,
then folders one level at a time, Up and the trail above them) and confirming copies or moves into the then folders one level at a time, Up and the trail above them) and confirming copies or moves into the
picked folder without leaving the current one. The selection survives a copy so a second destination is picked folder without leaving the current one. The selection survives a copy so a second destination is