59 lines
2.3 KiB
Markdown
59 lines
2.3 KiB
Markdown
# iris bench v2 report from Iris's phone, 2026-09-06
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Build 2e3f4ad (bench v2, fling physics, keyboard-wipe fix, dp unit), run
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by Iris on her Pixel 9 Pro XL, verbatim. The display was at **120 Hz**
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(8.3 ms budget) where `compose-phone-v2-2026-09-06.md` ran at 60 Hz, so
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compare the millisecond percentiles, not `late`.
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Side by side (Compose 60 Hz / iris 120 Hz, p50 / p90 / p99 ms): fling
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5.5/8.7/11.6 vs 3.8/6.9/12.6; stream 13.4/31.7/42.5 vs 18.2/35.8/43.1;
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type 7.3/13.2/16.5 vs 7.2/9.2/11.2; keyboard: iris could not show the IME
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(phase invalid). Process CPU 69.6 s over 125 s vs 40.6 s over 150 s; peak
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RSS 577 MB vs 379 MB; battery current mean 571 mA vs 452 mA.
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Iris's observations on the same run: "the scrolling is not similar at
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all. It does not fling for me yet [with a finger], and the test also seems
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to give it a constant velocity and abruptly stop it at some point. Also
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unsure what's going on in that image with the compaction" -- her
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screenshot shows the `Compacted: 180000 -> 20000 tokens.` row drawn twice
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overlapping, and once more below the composer bar: primitives of a
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replaced/removed row surviving in the GPU buffers, the same shape as the
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header drawn twice after a keyboard resize.
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```
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iris bench report
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per phase:
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fling: 1783 frames over 53.2s
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late: 104 (5.8%)
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total p50 3.8ms p90 6.9ms p99 12.6ms
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worst 29.1ms
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stream: 401 frames over 21.3s
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late: 306 (76.3%)
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total p50 18.2ms p90 35.8ms p99 43.1ms
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worst 43.8ms
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type: 1202 frames over 65.7s
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late: 309 (25.7%)
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total p50 7.2ms p90 9.2ms p99 11.2ms
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worst 15.3ms
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keyboard: 9 frames over 9.7s
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late: 9 (100.0%)
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total p50 12.0ms p90 12.9ms p99 12.9ms
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worst 12.9ms
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frames:
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3395 frames over 149.9s at 120Hz (8.3ms budget)
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late: 728 (21.4%)
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total p50 5.0ms p90 10.9ms p99 36.6ms
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worst 43.8ms
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cpu_p50 2.0ms gpu_wait_p50 2.6ms
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bench:
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fling: 8 flings out + 8 back at 12000px/s, travel start=idx=651/off=1217px outward=idx=651/off=101536px end=idx=651/off=1022px
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scroll: 6 cycles (24 swipes, legacy tween), streamed 400/400 fixture events
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type: 600 characters inserted then deleted, one per 50ms
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keyboard: could not be shown (5 attempts, 0 confirmed visible)
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process CPU time over this run: 40603ms
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peak RSS: 379156kB
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battery current: mean -452353µA over 149 samples (min -1753125, max -204687)
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```
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