Same sandbox session content, same emulator, EMU_GPU=software: Compose
(debug, in-app report) 1102 frames/99.0% late/p50 33.8ms/p99 79.5ms vs
iris (release -- debug SIGSEGVs on this emulator) FrameReport 299
frames/94.65% janky/p50 79.1ms/p99 117.8ms (repeat: 233/94.42%/p50
109.3ms). Ticks I5 [x]; states plainly what's not comparable (build
profile forced asymmetric, three different jank definitions, both are
software-rasterised emulator numbers). The two "zero frames" attempts
that preceded the clean runs traced to this session's own script bug
(a cd into /tmp changed which emulator ui-trace targeted), not a
reproduction of the previously-suspected touch-delivery dropout; a
sampler ran the whole session and saw load rise during the gesture
without correlating to any failure. DECISIONS.md's DEFERRED item gets
the same table so Iris can decide iris-vs-Masonry from it -- that
choice is left to her.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
irisandClaude Fable 5.1
0e4629361b