⚡️ Speed up method Util.toBoolean by 8%#16
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Runtime improvement: the optimized version cuts the measured call time from 550 µs to 507 µs (~8% faster) by removing extra work and fewer boxing/unboxing operations in the hot conversion path. What changed (specific optimizations) - Inlined the long-extraction logic into toBoolean so toBoolean no longer calls toLong. - Replaced implicit autounboxing of (Long)obj with an explicit primitive extraction: ((Long)obj).longValue(). - Used null-first ternary expressions returning primitives (0L / false) and compared against 0L directly. Why this speeds up execution - Method-call overhead: calling toLong for every boolean conversion added a small but measurable invocation cost. Removing that call eliminates the extra method-entry/exit overhead and any parameter/return handling for the helper. - Less boxing/unboxing churn: the original relied on boxing/unboxing via (Long)obj and the ternary; the optimized form explicitly extracts the primitive long with longValue() and returns primitive literals (0L/false). That reduces generated bytecode paths and runtime work the JVM must do to box/unbox values. - Simpler bytecode/branches: direct ternary primitives and a single comparison reduce control-flow and runtime checks, helping both interpreter and JIT-generated code be tighter and faster. How this affects real workloads - This utility is a small, hot-path helper (converting server-returned values). Workloads that call toBoolean/toLong millions of times (record decoding, tight loops converting server fields) will see the benefit amplified beyond the measured 8% microbench. - If the JIT already inlines the helper at runtime, some of the benefit would be realized by the JVM anyway; however, this change guarantees fewer bytecode ops even before optimization and avoids depending on JIT heuristics, which is helpful for short-lived processes, cold-start scenarios, or environments with limited JIT inlining. Tests & best-fit cases - The measured tests show an 8% runtime improvement; optimizations are most useful for heavy conversion workloads (high call-rate toBoolean/toLong). - No functional changes were introduced—the logic and null handling are preserved—so regression tests that exercise conversions should remain valid. Trade-offs - There is no meaningful regression in memory or correctness. The code is slightly more explicit about primitive extraction; this is a positive trade for runtime savings. Bottom line: by eliminating an extra helper call and reducing boxing/unboxing, the optimized code shortens the hot conversion path and yields the observed 8% runtime improvement.
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📄 8% (0.08x) speedup for
Util.toBooleaninclient/src/com/aerospike/client/util/Util.java⏱️ Runtime :
550 microseconds→507 microseconds(best of5runs)📝 Explanation and details
Runtime improvement: the optimized version cuts the measured call time from 550 µs to 507 µs (~8% faster) by removing extra work and fewer boxing/unboxing operations in the hot conversion path.
What changed (specific optimizations)
Why this speeds up execution
How this affects real workloads
Tests & best-fit cases
Trade-offs
Bottom line: by eliminating an extra helper call and reducing boxing/unboxing, the optimized code shortens the hot conversion path and yields the observed 8% runtime improvement.
✅ Correctness verification report:
⚙️ Click to see Existing Unit Tests
To edit these changes
git checkout codeflash/optimize-Util.toBoolean-ml73jy1kand push.