Limits to low-latency communication on high-speed networks
ACM Transactions on Computer Systems (TOCS)
Eliminating receive livelock in an interrupt-driven kernel
ACM Transactions on Computer Systems (TOCS)
Distributed caching with memcached
Linux Journal
Direct Cache Access for High Bandwidth Network I/O
Proceedings of the 32nd annual international symposium on Computer Architecture
nCap: wire-speed packet capture and transmission
E2EMON '05 Proceedings of the End-to-End Monitoring Techniques and Services on 2005. Workshop
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ISCA '08 Proceedings of the 35th Annual International Symposium on Computer Architecture
PowerNap: eliminating server idle power
Proceedings of the 14th international conference on Architectural support for programming languages and operating systems
Communications of the ACM
Power management of online data-intensive services
Proceedings of the 38th annual international symposium on Computer architecture
Revisiting network I/O APIs: the netmap framework
Communications of the ACM
Less is more: trading a little bandwidth for ultra-low latency in the data center
NSDI'12 Proceedings of the 9th USENIX conference on Networked Systems Design and Implementation
Workload analysis of a large-scale key-value store
Proceedings of the 12th ACM SIGMETRICS/PERFORMANCE joint international conference on Measurement and Modeling of Computer Systems
Chronos: predictable low latency for data center applications
Proceedings of the Third ACM Symposium on Cloud Computing
Proceedings of the 19th international conference on Architectural support for programming languages and operating systems
MICA: a holistic approach to fast in-memory key-value storage
NSDI'14 Proceedings of the 11th USENIX Conference on Networked Systems Design and Implementation
SENIC: scalable NIC for end-host rate limiting
NSDI'14 Proceedings of the 11th USENIX Conference on Networked Systems Design and Implementation
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Ethernet network interfaces in commodity systems are designed with a focus on achieving high bandwidth at low CPU utilization, while often sacrificing latency. This approach is viable only if the high interface latency is still overwhelmingly dominated by software request processing times. However, recent efforts to lower software latency in request-response based systems, such as memcached and RAMCloud, have promoted network interface into a significant contributor to the overall latency. We present a low latency network interface design suitable for request-response based applications. Evaluation on a prototype FPGA implementation has demonstrated that our design exhibits more than double latency improvements without a meaningful negative impact on either bandwidth or CPU power. We also investigate latency-power tradeoffs between using interrupts and polling, as well as the effects of processor's low power states.