Key ingredients to achieve effective 1/O 4aync0o时natt cachinc The solution asynchronous I/O Do not wait the acknowledgment Source Destination ocall an API to express what First bit 1 should be transfered o this immediately returns 电 without doing much ●get called back when transfer has been done/has failed 超093 Ack 3 time latency asyne mig 10/57 S.Ponce-CERNKey ingredients to achieve effective I/O 10 / 57 S. Ponce - CERN async IOopt struct caching c/c latency async msgQ The solution : asynchronous I/O Do not wait the acknowledgment ! call an API to express what should be transfered this immediately returns without doing much get called back when transfer has been done/has failed Source Destination time First bit 1 Last bit 1 Ack 1 First bit 2 Last bit 2 Ack 2 First bit 3 Last bit 3 Ack 3 First bit 2 Last bit 2 Ack 2 First bit 3 Last bit 3 Ack 3 First bit 4 Last bit 4 Ack 4 First bit 5 Last bit 5 Ack 5