APEX is designed to reduce PM accesses, especially the heavy-weight writes, flush, and memory fence instructions, while stillexploiting ML to achieve high performance . APEX achieves up to 15X higher throughput as compared to the state-of-the-art PM indexes, and can recover from failures in just 42ms . It is the first full-fledged andpractical learned index on PM. To the best of our knowledge, APEX. is the . first full .fledged and practical learned index for persistent memory (PM) In this . paper, we propose anew learned index . namely APEX, with very high performance, persistence, . persistence, concurrency, and instant recovery, and . instant recovery. Our in-depth experimentalevaluation on Intel DCPMM

Author(s) : Baotong Lu, Jialin Ding, Eric Lo, Umar Farooq Minhas, Tianzheng Wang

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Keywords : apex - pm - learned - index - high -

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