⚡️ Speed up method BatchDelete.equals by 31%

[codeflash-ai]

📄 31% (0.31x) speedup for BatchDelete.equals in client/src/com/aerospike/client/BatchDelete.java

⏱️ Runtime : 241 milliseconds → 183 milliseconds (best of 5 runs)

📝 Explanation and details

Runtime improved from 241 ms to 183 ms (≈31% faster). The optimized equals(...) is faster because it reduces per-call work and improves branch predictability in a hot, frequently-called check.

What changed

• Early short-circuit: The optimized version checks configProvider first and returns immediately when an explicit configuration override exists. That avoids unnecessary subsequent work.
• Local variable caching: The instance field policy is read once into a local variable (localPolicy) instead of being accessed multiple times via the object field.
• Simpler control flow: The boolean sendkey assignment is computed only once in the relevant branch rather than being set to a default then conditionally changed. The common case (no config override) follows a single, tight path.

Why this speeds up execution

• Field access vs local variable: Accessing a final field requires an extra object dereference; reading into a local stack variable avoids repeated dereferences and is faster for the JVM to optimize and JIT inline.
• Fewer branches and early return: Returning immediately when config overrides exist reduces the number of comparisons and assignments executed for those calls. Fewer executed instructions reduces CPU work and improves instruction-cache utilization.
• Better branch prediction: Consolidating the branches so the common path performs fewer conditional checks helps the CPU predict and pipeline more efficiently across repeated calls.
• Lower per-call overhead: equals(...) is small and called often in batch code; trimming even a few object/boolean checks per call accumulates into the observed ~31% runtime win.

Behavioral impact and safety

• Semantics are preserved: The logic still prefers configProvider overrides when present and otherwise falls back to policy.sendKey (defaulting to false when policy is null).
• No other metrics regressed in the provided measurements.

When this helps most

• Hot paths where equals(...) is invoked frequently (batch processing, repeated equality checks in collections or wire-protocol decision loops). The improvement is cumulative per call and therefore most visible under high-call-count workloads.
• Test coverage should include the four main scenarios: (1) configProvider null + policy null, (2) configProvider null + policy non-null, (3) configProvider non-null with override true, (4) configProvider non-null with override false. The optimized code is especially beneficial when many calls hit the common (no-config) path.

In short: the change reduces object field reads and unnecessary branching, enabling fewer CPU instructions per call and better JIT/CPU behavior, producing the observed 31% runtime improvement.

✅ Correctness verification report:

Test	Status
⚙️ Existing Unit Tests	✅ 1950 Passed
🌀 Generated Regression Tests	🔘 None Found
⏪ Replay Tests	🔘 None Found
🔎 Concolic Coverage Tests	🔘 None Found
📊 Tests Coverage	No coverage data found for equals

⚙️ Click to see Existing Unit Tests

To edit these changes git checkout codeflash/optimize-BatchDelete.equals-ml6p1arv and push.