⚡ Bolt: optimize synthetic embedding generation#216
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Optimize synthetic vector generation in @jeanbot/ai by using Node 22's one-shot crypto.hash API instead of repeating crypto.createHash calls. - Replaced crypto.createHash with crypto.hash in contentHashFor and seededUnitValue. - Gained ~13-16% performance improvement in syntheticVector generation. - Maintained deterministic output (verified with benchmark script). - Added performance learning to .jules/bolt.md. Co-authored-by: hackerxj2010 <198651211+hackerxj2010@users.noreply.github.com>
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💡 What: Optimized the synthetic embedding generation in
@jeanbot/aiby migrating from the legacycrypto.createHash().update().digest()pattern to the more efficientcrypto.hash()one-shot API introduced in Node.js 21.7.0.🎯 Why: Synthetic vector generation is a CPU-bound operation that performs 1536 SHA-256 hash operations per vector (one per dimension). The one-shot API reduces overhead associated with instance creation and garbage collection in these tight loops.
📊 Impact: Reduces synthetic vector generation time by approximately 13-16% based on benchmarks in Node 22.22.1.
🔬 Measurement: Verified using a dedicated benchmark script comparing the original implementation against the optimized one. Correctness was confirmed by ensuring the resulting vectors and hashes remain identical (deterministic).
Note: This change requires Node.js >= 21.7.0, which is consistent with the project's requirement of Node >= 22 as specified in the root
package.json.PR created automatically by Jules for task 12937379555103041591 started by @hackerxj2010