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cap.perf.streams-2000: 2,000 concurrent streams through the shipped binary, every one whole - #988
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…ary at once, every one whole (no speed threshold)
…inishes its own stream
MattJackson
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Oct 15, 2026
…e pinned decisions plane on a busbar rev that holds its contract - busbar-plane-decisions re-pinned 0ac65e1 -> 8b214c02cc: the plugin repo now pins busbar fca71d1 (this branch), whose contract carries the PlaneTail::metric_lanes, RefusalReason::CredentialUnavailable and HostCtx::NONE its ported edits use; its own workspace failed to build at 5c99bef (test check's dropped-in step). One busbar-contract in Cargo.lock (the [patch] path). - kind-isolation:law0: five rows settled to the union's measure, each at or under the merge-base's own row: busbar x instance:secret 13 -> 16, busbar x plane 583 -> 620, busbar-contract x instance:secret 43 -> 45, busbar-kernel x plane 1071 -> 1068, busbar-kernel x transport 203 -> 220. - kind-isolation:law0-base busbar x vendor (143 -> 144): #988's cap.perf.streams-2000 named its upstream's dialect in a root test literal; the provider row is test data (fixtures/streaming_mock_provider.yaml), as fixtures/mock_provider.yaml already is. - kind-isolation:test-deps: the busbar-kernel -> busbar-contract test edge #941 (#65) added (the dev-only test-seal) gets its [[dep]] row, count 1. - kind-isolation:test-deps plane -> plugin-tooling: #981 named the loader from a second busbar-plane-llm test file; its two loader cells move into tests/conformance.rs, the one file the conformance-witness grant covers. - structure-lint:plane-dup: armed at the measured 46 (Law 9; #787's 42 less six drains, plus ten names #503 and #787 each saw only once both homes moved), the stale Outbound and Route rows struck. - plane-secret-blindness: the a2a push.rs exposes-secret-bytes row is struck (drained). - script-allowlist: #972's scripts/store-migration-fixture.sh gets its entry.
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PARITY-SCOPE item 7(b). BUSBAR-1.6.0.md l.663 requires "2,000 concurrent streams (
cap.perf.streams-2000) — every stream completes, no speed threshold". The plane ABI review asks for "a cap.perf cell with 2000 concurrent streams" (l.4426), and TODO step 23 keeps it "as a correctness check". Nothing in the tree carried it.crates/busbar/tests/cap_perf_streams_2000.rsdrives the real binary:cap_perf_streams_2000_body, ignored on its own) underulimit -nraised to the hard limit. A host that cannot hold the streams is refused loudly, naming the limit: red, never a skip.It runs over whichever path the default build serves llm streams on today, and over the llm door once #824 makes the door the default.