perf(desktop): high-membership channel-switch benchmark - #6455

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Maxwellimus wants to merge 27 commits into

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perf/switch-tracing

Commits on Aug 26, 2026

perf(desktop): trace channel switches from click to settled paint
Maxwellimus
committed
370c668
test(desktop): high-membership channel-switch perf harness
Maxwellimus
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0cfabee
fix(desktop): suspense-aware settle, StrictMode-safe abandon, log cap

Maxwellimus
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claude
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89910c5
fix(desktop): guard-gated traces, on-disk log cap, honest projects benchmark

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claude
committed
705899b
fix(desktop): drop frame-starved settles; harden sink and harness honesty

Maxwellimus
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claude
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446174b
fix(desktop): bound start marks for traces that never record

Maxwellimus
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claude
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f6d3388
fix(desktop): drop starved settles and hidden-overlap traces; clean buffer at begin

Maxwellimus
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claude
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96817ab
fix(desktop): discard stale longtask deliveries at perf-sample start

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claude
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083e948
fix(desktop): degrade to unrotated append when perf-log rotation fails

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claude
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46dd5d5
fix(desktop): drop live traces on any exit from the channel surface

Maxwellimus
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claude
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087d9b7
fix(desktop): gate roster attribution on abort; warn on dead sink; drop starved frames

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claude
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116b73b
test(desktop): distinguish honest truncation from tracer bugs in settle specs

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claude
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b6f18d0
fix(desktop): signal-free roster attribution gate; seed the frame-gap guard

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claude
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ad981ff
fix(desktop): only the exact channel route keeps a live switch trace

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claude
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e0f4768
fix(desktop): guard document at settle entry; pin rotation in concurrent test

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claude
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83eb45c
test(desktop): assert the tracer contract before the timing budget

Maxwellimus
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claude
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559e1e4
fix(desktop): begin revokes pending same-channel abandons; null-safe budget guard

Maxwellimus
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claude
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5ea0231
fix(desktop): anchor the switch trace at the input event, not handler dispatch

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claude
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a355a0b
fix(desktop): stamp the start mark at the anchored input event

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claude
committed
a0a7989
fix(desktop): guard the final paint frame; trace DM entry paths
Maxwellimus
committed
6e9942f

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perf(desktop): high-membership channel-switch benchmark - #6455

perf(desktop): high-membership channel-switch benchmark#6455
Maxwellimus wants to merge 27 commits into
mainfrom
perf/switch-tracing

Commits on Aug 26, 2026

perf(desktop): trace channel switches from click to settled paint

test(desktop): high-membership channel-switch perf harness

fix(desktop): suspense-aware settle, StrictMode-safe abandon, log cap

fix(desktop): guard-gated traces, on-disk log cap, honest projects benchmark

fix(desktop): drop frame-starved settles; harden sink and harness honesty

fix(desktop): bound start marks for traces that never record

fix(desktop): drop starved settles and hidden-overlap traces; clean buffer at begin

fix(desktop): discard stale longtask deliveries at perf-sample start

fix(desktop): degrade to unrotated append when perf-log rotation fails

fix(desktop): drop live traces on any exit from the channel surface

fix(desktop): gate roster attribution on abort; warn on dead sink; drop starved frames

test(desktop): distinguish honest truncation from tracer bugs in settle specs

fix(desktop): signal-free roster attribution gate; seed the frame-gap guard

fix(desktop): only the exact channel route keeps a live switch trace

fix(desktop): guard document at settle entry; pin rotation in concurrent test

test(desktop): assert the tracer contract before the timing budget

fix(desktop): begin revokes pending same-channel abandons; null-safe budget guard

fix(desktop): anchor the switch trace at the input event, not handler dispatch

fix(desktop): stamp the start mark at the anchored input event

fix(desktop): guard the final paint frame; trace DM entry paths

Commits on Aug 27, 2026

fix(desktop): terminate the starvation heartbeat; account for every drop

refactor(desktop): cut the switch tracer to a simple, honest metric

test(desktop): drop the import left behind by the tracer reduction

refactor(desktop): drop the switch tracer, keep the perf harness

test(desktop): drop tracer leftovers from the guard tests

fix(desktop): test that a refused navigation actually refuses

refactor(desktop): stop touching MessageTimeline; the benchmark doesn't need it