The Intel Optane DC Persistent Memory (DCPM) is an attractive novel technology for building storage systems for data intensive HPC applications, as it provides lower cost per byte, low standby power and larger capacities than DRAM, with comparable latency. This work provides an in-depth evaluation of the energy consumption of the Optane DCPM, using well-established indexes specifically designed to address the challenges and constraints of the persistent memories. We study the energy efficiency of the Optane DCPM for several indexing data structures and for the LevelDB key-value store, under different types of YCSB workloads. By integrating an Optane DCPM in a memory system, the energy drops by 71.2% and the throughput increases by 37.3% for the LevelDB experiments, compared to a typical SSD storage solution.

翻译：英特奥腾DC持久内存（Optane DCPM）是一种颇具吸引力的新兴技术，可用于构建数据密集型高性能计算应用的存储系统。相较于动态随机存取存储器（DRAM），它在提供可比延迟的同时，具备更低的每字节成本、更低的待机功耗以及更大的容量。本文针对专门为应对持久内存挑战与约束而设计的成熟索引，对Optane DCPM的能耗进行了深入评估。我们研究了Optane DCPM在多种索引数据结构及LevelDB键值存储中，于不同YCSB工作负载类型下的能效表现。与典型的固态存储解决方案相比，在LevelDB实验中，将Optane DCPM集成至内存系统后，能耗降低了71.2%，吞吐量提升了37.3%。