Paper Info
Title
Extending On-chip Interconnects for rack-level remote resource access
Abstract
The need to perform data analytics on exploding data volumes coupled with the rapidly changing workloads in cloud computing places great pressure on data-center servers. To improve hardware resource utilization across servers within a rack, we propose Direct Extension of On-chip Interconnects (DEOI), a high-performance and efficient architecture for remote resource access among server nodes. DEOI extends an SoC server node's on-chip interconnect to access resources in adjacent nodes with no protocol changes, allowing remote memory and network resources to be used as if they were local. Our results on a four-node FPGA prototype show that the latency of user-level, cross-node, random reads to DEOI-connected remote memory is as low as 1.16µs, which beats current commercial technologies. We exploit DEOI remote access to improve performance of the Redis in-memory key-value framework by 47%. When using DEOI to access remote network resources, we observe an 8.4% average performance degradation and only a 2.52µs ping-pong latency disparity compared to using local assets. These results suggest that DEOI can be a promising mechanism for increasing both performance and efficiency in next-generation data-center servers.
Year
DOI
Venue
2016
10.1109/ICCD.2016.7753261
2016 IEEE 34th International Conference on Computer Design (ICCD)
Keywords
Field
DocType
data center,remote access,custom interconnect
System on a chip,Computer science,Latency (engineering),Server,Node (networking),FPGA prototype,Computer network,Real-time computing,Exploit,Data center,Embedded system,Cloud computing
Conference
ISSN
ISBN
Citations 
1063-6404
978-1-5090-5143-4
2
PageRank 
References 
Authors
0.42
15
7
Name
Order
Citations
PageRank
Yisong Chang153.92
Ke Zhang27521.74
Sally A. Mckee31928152.59
Lixin Zhang457145.96
Ming-yu Chen590279.29
Liqiang Ren620.42
Zhiwei Xu71563162.88