Key ingredients to achieve effective 1/O 4心async0op时anet caching c/e Asynchronous 1/O ①Asynchronous I/O Latency Asynchronous l/O interfaces ·Message queues ②l/0 optimizations Influence of data structures on 1/O Caching Conclusion tancy ac mi名 4/57 S.Ponce-CERNKey ingredients to achieve effective I/O 4 / 57 S. Ponce - CERN async IOopt struct caching c/c latency async msgQ Asynchronous I/O 1 Asynchronous I/O Latency Asynchronous I/O interfaces Message queues 2 I/O optimizations 3 Influence of data structures on I/O 4 Caching 5 Conclusion