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30+ Updates per Second per Account: Uber Scales Ledger Processing with Batching

Uber introduced a high-throughput financial ledger processing system designed to handle hot account write contention at scale. Using 250ms batching, R…

Distributed SystemsHotSpotEvent Driven ArchitectureLow LatencypaymentTransactions ProcessingConsistencyOptimizationEvent Stream ProcessingFinancial ApplicationsBatch ProcessingPerformanceDevelopmentArchitecture & Designnews
InfoQ Jun 4, 2026, 14:02 UTC
RU

JDK 27 Compact Object Headers: как сбросить до 30% кучи без кроссфита и жестких диет

Каждый Java-объект в HotSpot начинается со служебного заголовка размером 12 байт. В JDK 27 по умолчанию он сжимается до 8 — это JEP 534, финальный шаг…

JavaJVMHotSpotOpenJDKJDK 27JEP 534Compact Object HeadersProject LilliputGCОптимизация памяти
Habr Jun 2, 2026, 15:19 UTC

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