Name
Abstract | ||
|---|---|---|
We present NAP, a black-box approach that converts concurrent persistent memory (PM) indexes into NUMA-aware counterparts. Based on the observation that real-world workloads always feature skewed access patterns, NAP introduces a NUMA-aware layer (NAL) on the top of existing concurrent PM indexes, and steers accesses to hot items to this layer. The NAL maintains 1) per-node partial views in PM for serving insert /update/delete operations with failure atomicity and 2) a global view in DRAM for serving lookup operations. The NAL eliminates remote PM accesses to hot items without inducing extra local PM accesses. Moreover, to handle dynamic workloads, Nap adopts a fast NAL switch mechanism. We convert five state-of-the-art PM indexes using NAP. Evaluation on a four-node machine with Optane DC Persistent Memory shows that NAP can improve the throughput by up to 2.3x and 1.56x under write-intensive and read-intensive workloads, respectively. |
Year | Venue | DocType |
|---|---|---|
2021 | PROCEEDINGS OF THE 15TH USENIX SYMPOSIUM ON OPERATING SYSTEMS DESIGN AND IMPLEMENTATION (OSDI '21) | Conference |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
4 | ||