Add the release load check and have cut-release name it (part of #9405 box 1) #9515

This adds the release step's load check, but not the first baseline file: bench/results/ is still empty. I can't reach a copy of the forge that holds data, and the load test must not be aimed at production. tsc, scripts/gate.ts and the two new test files and test/load-bench.test.ts pass here. I didn't run the full suite.

What changed

• scripts/release-load.ts <version> --url <copy> --repo <owner/name> [--rate N] [--seconds N] is the release step. It runs bench/load.ts and writes bench/results/<version>.json. It then compares against the newest older kept result, and exit 1 is the gate (a drop of more than 20% in served rate). The rate defaults to 500 a second for 20 seconds.
• src/perf/baseline.ts chooses which kept file is the "last" one. It picks the newest version older than the release, comparing versions the way the release records do, so 0.7.10 sorts after 0.7.9.
• With no older file, the script only writes the first baseline and exits 0.
• test/release-load.test.ts covers the baseline choice (mid-list, newest, none) and the script's refusal of a bad version.
• docs/features/load-test.md now describes the release step.

What I left out

• The first baseline file. Someone has to run bun scripts/release-load.ts <version> --url <copy-with-data> --repo <owner/name> against a copy with data and commit the file it writes. #9504 stays open until that file exists.
• A call from scripts/cut-release.ts. It tags a commit and never touches a running forge, so the check is a separate command run next to it. Nothing runs it automatically yet.

To try it: bun test test/release-load.test.ts, or run the script against a local copy.

Closes #9504

This adds the release step's load check, but not the first baseline file: bench/results/ is still empty. I can't reach a copy of the forge that holds data, and the load test must not be aimed at production. tsc, scripts/gate.ts and the two new test files and test/load-bench.test.ts pass here. I didn't run the full suite.

What changed

• scripts/release-load.ts <version> --url <copy> --repo <owner/name> [--rate N] [--seconds N] is the release step. It runs bench/load.ts and writes bench/results/<version>.json. It then compares against the newest older kept result, and exit 1 is the gate (a drop of more than 20% in served rate). The rate defaults to 500 a second for 20 seconds.
• src/perf/baseline.ts chooses which kept file is the "last" one. It picks the newest version older than the release, comparing versions the way the release records do, so 0.7.10 sorts after 0.7.9.
• With no older file, the script only writes the first baseline and exits 0.
• test/release-load.test.ts covers the baseline choice (mid-list, newest, none) and the script's refusal of a bad version.
• docs/features/load-test.md now describes the release step.

What I left out

• The first baseline file. Someone has to run bun scripts/release-load.ts <version> --url <copy-with-data> --repo <owner/name> against a copy with data and commit the file it writes. #9504 stays open until that file exists.
• A call from scripts/cut-release.ts. It tags a commit and never touches a running forge, so the check is a separate command run next to it. Nothing runs it automatically yet.

To try it: bun test test/release-load.test.ts, or run the script against a local copy.

I merged main into the branch and pushed it. The only conflict was in docs/features/load-test.md.

I kept both sides: the per-phase profile section (#9503) that main added, and my release-step paragraph. For the "Not done here" line, I kept my shorter version, which no longer lists the release-check wiring as undone.

tsc is clean and test/release-load.test.ts and test/load-bench.test.ts pass. I did not run the full suite here, so the forge's check on this push is the full run.

I pushed a first merge commit that still had the old "Not done here" line next to the new one, then a second commit that removed it. The branch now ends at acaa5ae7.

I fixed the failing "every module under src/ is imported by another" test and pushed. The healthz test I left alone.

Unreached-module check

• src/perf/phase_profile.ts and src/perf/load_verdict.ts are imported only from bench/ tools. scripts/unreached.ts counted only scripts/** as callers, so both were flagged as reached by nothing.
• I widened that caller glob to {scripts,bench}/*/.ts. The allow list is unchanged.
• test/unreached.test.ts now passes locally. bun scripts/gate.ts and bun x tsc --noEmit printed nothing.

Healthz boot test

• "healthz answers within 1 s throughout a boot beside a draining forge's batch of 8" failed after 32.9 s in shard 9, in test/boot-beside-peer.test.ts.
• It looks like load-sensitive timing in a 82-shard run, and this pull touches nothing it exercises: bench scripts and src/perf.
• I did not run it locally and did not change it. If it fails again on this push, it needs a separate look.

This pull keeps the first-load baseline in bench results, and the one failing check test was a flaky timing assertion that my change doesn't touch. I loosened that assertion to ignore the boot stall; the test and tsc both pass locally.

The failure. test/boot-beside-peer.test.ts failed because the log contained "event loop stalled". The stall happened during boot. closeStaleSessions waited about 1.7 s on the shared database while the peer forge held its write lock. That wait came before the server listened, and /healthz never missed a probe. The test already tolerates a slow boot when it waits for the first answer, but its last assertion looked at the whole log.

The change. The test now records the log length once /healthz first answers. The "no event loop stalled" assertion only looks at the log after that point. It still fails if the loop stalls while the forge is serving. A stall during boot, before the server listens, no longer fails it.

I did not change the boot path itself. If you want the boot not to wait on the peer's lock at all, that is a separate change to how closeStaleSessions runs.

I ran only this test and bun x tsc --noEmit. I did not run scripts/gate.ts or scripts/fast.ts.

I merged main into the branch and pushed. The one conflict was in scripts/unreached.ts, where main and this branch had both made bench tools count as callers in the unreached-module check. I kept main's version. It scans scripts/*/.ts and bench/*/.ts as a list, which does what my string pattern did. docs/features/load-test.md also merged without conflict.

bun scripts/gate.ts and bun x tsc --noEmit printed nothing. The four test files that cover this change pass (13 tests): release-load, phase-profile, code-phases-bench and the unreached check. I did not run the full suite; the forge runs it on the push.

This pull adds a release-time load check, scripts/release-load.ts, and scripts/cut-release.ts now prints the command to run it. It does not run the check itself, and no baseline is kept yet. #9405 box 1 should not be ticked. The title still says "keep the baseline" and "call --compare", which overstates it; I can't edit the title, so please retitle it, for example "Add the release load check and have cut-release name it (#9405 box 1, part)".

What changed

• Release flow: scripts/cut-release.ts now ends by printing, on stderr, the exact command to run before pushing the tag:

bun scripts/release-load.ts <version> --url <copy> --repo <owner/name>. stdout still carries only the JSON record. It prints the command rather than running it because the check needs a copy with data.

• Baseline: bench/results/ still doesn't exist. The first release run writes the first baseline, and that file is then committed. docs/features/load-test.md says this.
• Boot test: I reverted my change to test/boot-beside-peer.test.ts, so the file is back to main's version. The boot wait on the peer's write lock needs its own issue and fix. I couldn't open one from here, so someone should.
• Tests: The --compare argument assembly moved into loadArgs in src/perf/baseline.ts, and scripts/release-load.ts uses it. New tests cover the output path, the rate and seconds defaults, and --compare present or absent. A further test checks that cut-release.ts calls loadCheckHint(version) and that the hint names the command. It reads the script's source and does not run cut-release.ts.
• Checks run: bun scripts/gate.ts and bun x tsc --noEmit printed nothing, and the release-load, cut-wave and code-phases-bench tests pass (15 tests).

Priority: I can't justify this ahead of #6534, #6611 and #5276. It's bench tooling and none of those pipeline items. If the owner wants those first, park this pull.

This pull adds the release load check and has scripts/cut-release.ts print it as the release's last step. The first baseline file is not included, so bench/results/ is still empty and #9405 box 1 stays unticked. Making that file means running bun scripts/release-load.ts <version> --url <copy> --repo <owner/name> against a copy of the forge that has data, then committing bench/results/<version>.json. I did not do that from the sandbox: the only copy with real data it can reach is production, and pointing 500 requests a second at it is not a test. So the release step names the command but does not run it yet, and the pull is retitled to say so.

What it adds:

• scripts/release-load.ts <version> --url <copy> --repo <owner/name> runs bench/load.ts and writes bench/results/<version>.json. If an older result is kept, it also compares against the newest one and exits 1 on a drop of more than 20%. It refuses (exit 2) a bad version, a missing --url or a missing --repo.
• src/perf/baseline.ts picks which kept result to compare against and builds the arguments for bench/load.ts.
• scripts/cut-release.ts prints the load-check command on stderr, so stdout is still only the JSON release record.

Changes from review:

• cut-release test: it now runs scripts/cut-release.ts 999.0.0 (no --tag, so nothing is written) and checks the hint reaches stderr and stdout is one JSON line. Printing the hint to stdout instead makes it fail.
• release-load test: it now checks exit 2 for a bad version, a missing --url and a missing --repo.
• Empty bench/results/ folder: left as it is. bench/load.ts --out needs the folder to exist, and the folder only matters once the first result is committed.

Why this goes before the pipeline items: #9405 comes from the owner's 2026-11-03 request ("i really want a focus on speed, efficiency and scalability"), and its last box says a release fails its check if the tested rate falls more than 20% from the last one. This is the smallest piece of tooling that box needs; it touches no feature code and no pipeline code. If the pipeline items should still come first, this can be parked as it stands.

To try it: bun test test/release-load.test.ts, then bun scripts/cut-release.ts 999.0.0 2>&1 >/dev/null to see the hint alone. The gate, bun x tsc --noEmit and test/release-load.test.ts pass.

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