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Apple Completes Migration of Key Service to Swift, Gains 40% Performance Uplift
Apple has migrated its global Password Monitoring service from Java to Swift, achieving a 40% increase in throughput and significantly reducing memory usage—freeing up nearly 50% of previously allocated Kubernetes capacity.
Apple has migrated its global Password Monitoring service from Java to Swift, achieving a 40% increase in throughput and significantly reducing memory usage—freeing up nearly 50% of previously allocated Kubernetes capacity. After tuning, Apple reported sub-millisecond 99.9th percentile latencies and a dramatic drop in memory usage: Swift instances consumed hundreds of megabytes, compared to tens of gigabytes with Java. While this isn't a sign that Java and similar languages are in decline, there is growing evidence that at the uppermost end of performance requirements, some are finding that general-purpose runtimes no longer suffice.
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