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📝 WalkthroughWalkthroughUpdated CI triggers for the codec-suite job, added documentation entries for codec performance environment variables, and introduced/adjusted Node.js performance tests that enforce configurable time and memory budgets for codec decode paths. Changes
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Actionable comments posted: 3
🤖 Fix all issues with AI agents
In `@docs/configuration.md`:
- Around line 304-309: The three new env vars (TYWRAP_PERF_BUDGETS,
TYWRAP_PERF_TIME_BUDGET_MS, TYWRAP_PERF_MEMORY_BUDGET_MB) lack inline
descriptions; update the block to add brief comments next to each export
explaining their purpose and units — mention that TYWRAP_PERF_BUDGETS toggles
enforcement of performance budget checks in the test suite (see
test/performance-budgets.test.ts), TYWRAP_PERF_TIME_BUDGET_MS is the per-test
time budget in milliseconds, and TYWRAP_PERF_MEMORY_BUDGET_MB is the per-test
memory budget in MB (follow the style of the TYWRAP_CODEC_MAX_BYTES comment for
wording and placement) so users know what triggers checks and how to adjust
values.
In `@test/codec-performance.test.ts`:
- Around line 10-12: Validate the parsed environment variables iterations,
timeBudgetMs, and memoryBudgetMb after calling Number() in
test/codec-performance.test.ts and handle NaN: check Number.isFinite(...) (or
!Number.isNaN(...)) for each variable and either fall back to the intended
default values or throw a clear error if invalid; update the initialization
logic for iterations, timeBudgetMs, and memoryBudgetMb to perform this
validation so the test loop has deterministic numeric bounds and fails loudly on
bad env input.
- Around line 57-77: The memory assertion is unreliable when global.gc isn't
exposed; update the test to detect whether global.gc exists and, if not, skip
(or only warn about) the memory assertion: before calling process.memoryUsage()
for the final assertion, check global.gc and only run the endMem/deltaMem and
expect(deltaMem).toBeLessThan(memoryBudgetMb * 1024 * 1024) when global.gc is
present, otherwise log a concise warning and omit the memory expect; keep the
timing assertions and the
decodeValue(sparseEnvelope/torchEnvelope/sklearnEnvelope) loop unchanged so
behavior is identical in CI where NODE_OPTIONS=--expose-gc.
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.github/workflows/ci.ymldocs/configuration.mdtest/codec-performance.test.ts
🔇 Additional comments (3)
.github/workflows/ci.yml (1)
162-167: LGTM!The expanded trigger conditions correctly implement the PR objective: the codec-suite now runs on pushes to main and on PRs labeled
area:codec, in addition to scheduled/manual runs. The multi-line YAML syntax is correct.test/codec-performance.test.ts (2)
14-55: LGTM!The test envelopes are well-structured and represent key codec types (sparse matrices, torch tensors, sklearn estimators). Using
as constfor type narrowing is a good practice. The coverage aligns with the PR objective of adding performance gates for codec decode paths.
5-6: LGTM!The conditional execution logic correctly gates the performance tests to run only in Node.js when either in CI or explicitly opted-in via
TYWRAP_PERF_BUDGETS=1. This prevents accidental test failures in environments where performance characteristics differ.
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Actionable comments posted: 2
🤖 Fix all issues with AI agents
In `@test/codec-performance.test.ts`:
- Around line 69-77: The test currently uses the global performance variable
(used in the start/duration timing around the decodeValue loop), which can be
brittle; add an explicit import of performance from the perf_hooks module and
use that imported symbol (performance) in the timing code (around the start =
performance.now() and duration = performance.now() - start) so the test reliably
uses Node's perf_hooks API; ensure the import appears at the top of the test
file alongside other imports.
- Around line 5-6: Update the test gating logic so performance-budget tests only
run when the explicit TYWRAP_PERF_BUDGETS flag is set: change the shouldRun
expression that currently uses isNodejs() && (process.env.CI ||
process.env.TYWRAP_PERF_BUDGETS === '1') to require
process.env.TYWRAP_PERF_BUDGETS === '1' (retaining isNodejs() check if needed),
so describeBudget (and the shouldRun definition) will not rely on
process.env.CI; apply the same change to the other instance in
performance-budgets.test.ts to keep behavior consistent.
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@coderabbitai review incremental changes for perf budget gating + perf_hooks import. |
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Tip For best results, initiate chat on the files or code changes. 🧩 Analysis chain🏁 Script executed: Length of output: 2559 🏁 Script executed: Length of output: 8854 🏁 Script executed: Length of output: 728
✅ Performance Budget GatingThe gating implementation is well-designed: The budget gating uses a clean pattern with
The three configurable budget parameters with sensible defaults are well-chosen:
✅ perf_hooks ImportThe import uses the modern Minor observation: I noticed the codebase has mixed import styles for
While not critical, you might consider standardizing to the ✅ CI IntegrationThe CI workflow properly enables performance budgets in the env:
NODE_OPTIONS: --expose-gc
TYWRAP_PERF_BUDGETS: '1'This ensures:
The Overall: The implementation is production-ready! 🚀 |
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⚠️ Outside diff range comments (2)
test/performance-budgets.test.ts (2)
78-79: Add validation for parsed environment variables.If environment variables are set to non-numeric values,
Number()returnsNaN, causing assertions to behave unexpectedly (e.g.,duration < NaNis alwaysfalse).🔧 Proposed fix with validation
- const timeBudgetMs = Number(process.env.TYWRAP_PERF_TIME_BUDGET_MS ?? '2000'); - const memoryBudgetMb = Number(process.env.TYWRAP_PERF_MEMORY_BUDGET_MB ?? '64'); + const timeBudgetMs = Number(process.env.TYWRAP_PERF_TIME_BUDGET_MS ?? '2000'); + const memoryBudgetMb = Number(process.env.TYWRAP_PERF_MEMORY_BUDGET_MB ?? '64'); + + expect(Number.isFinite(timeBudgetMs) && timeBudgetMs > 0).toBe(true); + expect(Number.isFinite(memoryBudgetMb) && memoryBudgetMb > 0).toBe(true);Consider extracting a shared helper (like
readEnvNumberincodec-performance.test.ts) with built-in validation for consistency across both test files.
93-101: Memory budget assertion may be unreliable without--expose-gc.Without
--expose-gc, theglobal.gccall is skipped, leaving unreleased garbage in the heap. This makesdeltaMemunpredictable and the assertion flaky for local runs.♻️ Option: Skip memory assertion when GC isn't exposed
const duration = performance.now() - startTime; - if (global.gc) { - global.gc(); - } + const hasGc = typeof global.gc === 'function'; + if (hasGc) { + global.gc(); + } const endMem = process.memoryUsage().heapUsed; const deltaMem = endMem - startMem; expect(result.typescript.length).toBeGreaterThan(0); expect(duration).toBeLessThan(timeBudgetMs); - expect(deltaMem).toBeLessThan(memoryBudgetMb * 1024 * 1024); + if (hasGc) { + expect(deltaMem).toBeLessThan(memoryBudgetMb * 1024 * 1024); + }
♻️ Duplicate comments (2)
test/codec-performance.test.ts (2)
9-10: Add validation toreadEnvNumberfor non-numeric values.If environment variables are set to non-numeric strings,
Number()returnsNaN. This causes the loop to never execute (i < NaNis alwaysfalse) and assertions to pass vacuously or fail unexpectedly.🔧 Proposed fix with validation
-const readEnvNumber = (name: string, fallback: string): number => - Number(process.env[name] ?? fallback); +const readEnvNumber = (name: string, fallback: string): number => { + const value = Number(process.env[name] ?? fallback); + if (!Number.isFinite(value) || value <= 0) { + throw new Error(`Invalid env ${name}: expected positive number, got '${process.env[name]}'`); + } + return value; +};
78-84: Memory budget assertion may be unreliable without--expose-gc.Without
--expose-gc, therunGc()call is a no-op, leaving unreleased garbage in the heap. This makesdeltaMemunpredictable. CI setsNODE_OPTIONS=--expose-gc, but local runs may not.♻️ Option: Skip memory assertion when GC isn't exposed
const duration = performance.now() - start; runGc(); const endMem = process.memoryUsage().heapUsed; const deltaMem = endMem - startMem; expect(duration).toBeLessThan(timeBudgetMs); - expect(deltaMem).toBeLessThan(memoryBudgetBytes); + if (global.gc) { + expect(deltaMem).toBeLessThan(memoryBudgetBytes); + }
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🔇 Additional comments (5)
test/performance-budgets.test.ts (2)
1-1: LGTM on explicitperf_hooksimport.Using an explicit import for
performancefromnode:perf_hooksensures consistent behavior across Node.js versions.
13-14: LGTM on the gating condition.Requiring the explicit
TYWRAP_PERF_BUDGETS === '1'flag (without an implicitCIfallback) gives precise control over when performance tests execute.test/codec-performance.test.ts (3)
1-7: LGTM on imports and gating logic.The explicit
node:perf_hooksimport and theTYWRAP_PERF_BUDGETS === '1'gating (without implicit CI fallback) address previous review feedback correctly.
12-16: Good extraction ofrunGchelper.Clean abstraction for conditional GC invocation.
25-66: Test envelope definitions look good.The three envelopes (
sparseEnvelope,torchEnvelope,sklearnEnvelope) provide representative coverage of different codec types with appropriate metadata structures.
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Summary
Testing
Closes #27