TY - GEN
T1 - Can far memory improve job throughput?
AU - Amaro, Emmanuel
AU - Branner-Augmon, Christopher
AU - Luo, Zhihong
AU - Ousterhout, Amy
AU - Aguilera, Marcos K.
AU - Panda, Aurojit
AU - Ratnasamy, Sylvia
AU - Shenker, Scott
N1 - Publisher Copyright:
© 2020 ACM.
PY - 2020/4/15
Y1 - 2020/4/15
N2 - As memory requirements grow, and advances in memory technology slow, the availability of sufficient main memory is increasingly the bottleneck in large compute clusters. One solution to this is memory disaggregation, where jobs can remotely access memory on other servers, or far memory. This paper first presents faster swapping mechanisms and a far memory-Aware cluster scheduler that make it possible to support far memory at rack scale. Then, it examines the conditions under which this use of far memory can increase job throughput. We find that while far memory is not a panacea, for memory-intensive workloads it can provide performance improvements on the order of 10% or more even without changing the total amount of memory available.
AB - As memory requirements grow, and advances in memory technology slow, the availability of sufficient main memory is increasingly the bottleneck in large compute clusters. One solution to this is memory disaggregation, where jobs can remotely access memory on other servers, or far memory. This paper first presents faster swapping mechanisms and a far memory-Aware cluster scheduler that make it possible to support far memory at rack scale. Then, it examines the conditions under which this use of far memory can increase job throughput. We find that while far memory is not a panacea, for memory-intensive workloads it can provide performance improvements on the order of 10% or more even without changing the total amount of memory available.
UR - http://www.scopus.com/inward/record.url?scp=85086181816&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85086181816&partnerID=8YFLogxK
U2 - 10.1145/3342195.3387522
DO - 10.1145/3342195.3387522
M3 - Conference contribution
T3 - Proceedings of the 15th European Conference on Computer Systems, EuroSys 2020
BT - Proceedings of the 15th European Conference on Computer Systems, EuroSys 2020
PB - Association for Computing Machinery, Inc
T2 - 15th European Conference on Computer Systems, EuroSys 2020
Y2 - 27 April 2020 through 30 April 2020
ER -