LearnedCache: An eBPF-Integrated Perceptron-Based Eviction Policy for the Linux Page Cache#

Zejia Qi (poster; affiliation not listed in the program)

• Why: Two of your interests in one title: eBPF as a safe extension mechanism for kernel policy, and learned replacement decisions — here applied to the Linux page cache rather than a network cache, but the architecture question (can you wire a learned policy into kernel hot paths via eBPF without killing performance?) is the same one for LRU-vs-learned eviction in CDN caches, connection tracking, and flow caches.
• What: Not assessable from the program — no abstract is provided, and the MLSys poster page lists only the title and author. By title: a perceptron-based (learned) eviction policy for the Linux page cache, integrated with eBPF.
• How: Unknown from available material.
• Where applicable: Unknown from available material; by construction it is Linux-kernel-specific, and the interesting question for you is the eBPF-integration pattern, not page caching per se.