OCaml rewatch performance and immutable interfaces - #8680

Draft

fhammerschmidt wants to merge 38 commits into

rewatch-ocamlfrom

rewatch-ocaml-consolidated

Commits on Sep 25, 2026

Make OCaml rewatch benchmarks reproducible across build scenarios

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a67928f
Add opt-in compiler request timing trace

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e415568
Record retained watch filesystem audit

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19cd9bf
Document compiler-core timing bottlenecks

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d49ad43
Align benchmark compiler profiles and refresh results

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95499ed
Record matched before-and-after OCaml benchmarks

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87f58d4
Document CMI lookup cost and reuse bound

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1830b9e
Document repeated signature opening cost

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64de041
Build opened signature label tables in bulk

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b2f9f94
Time builds independently of resource sampling

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cacbf09
Record label-table benchmark and reproduction steps

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515f4f5
Record unexplained single-worker outliers

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0af49e4
Record compiler filesystem effect on Rewatch baselines

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02b518e
Restore source baseline between edit benchmark runs

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9f5079a
Measure retained watches without compiler proxy overhead

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d544397
Record restored-edit fast compiler comparison

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cfbb43f
Record parser environment allocation probe

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68e372d
Document in-process OCaml rewatch in changelog

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fhammerschmidt
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f43bfdd
Clarify OCaml rewatch compiler timing breakdowns
fhammerschmidt
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80eb959
Add exclusive compiler phase tracing for OCaml rewatch
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26ec8df
Cache expanded signatures per OCaml rewatch worker
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54e3bd0
Document OCaml rewatch signature cache in changelog
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d1c43a0
Reuse runtime CMIs and shared signature snapshots
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5d68298
Keep compiler dependency state for the project lifetime
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ac85680
Document project-scoped compiler session in changelog
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b72fc53
Clarify testrepo benchmark platform limitation
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2e2baf5
Add immutable compiled interface representation
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807a6e1
Document immutable interface experiment in changelog
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ff965cc

Commits on Sep 26, 2026

Continue immutable interface experiments
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8aa9dd3
Advance Rewatch lifecycle and tooling performance
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14dc9b4
Gate compatibility copies behind explicit mode
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bf921de
Fix OCaml CI compatibility issues
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8b53da9
Align config acceptance with annotation defaults
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b580562
Align suffix CI test with default output layout
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736a6d3
Build annotated tooling dependencies in macOS CI
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4043321

Commits on Sep 27, 2026

Separate watch-filter edits in parity test
fhammerschmidt
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e258d0e
Run CI for rewatch-ocaml stack PRs
fhammerschmidt
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80c2375
Build experimental stack on branch pushes
fhammerschmidt
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2004dad