AUTOBAHN: Accelerating Concurrent, Durable File I/O via a Non-volatile Buffer
Hyeongwon Jang, Sang Youp Rhee, Jae Eun Kim, Sooyong Kang, Hyuck Han, Hyungsoo Jung · 2017
As hardware vendors provision more cores and faster storage devices, attaining fast data durability for concurrent file writes is demanding to high-performance storage systems in cluster systems. We approach the challenge by proposing a system that uses a small amount of fast persistent memory for buffering concurrent file writes while preserving data durability. The main issue in designing a durable file buffer is allowing concurrent file writes to store data in a shared and limited space of persistent memory without incurring lock or resource contention. This paper addresses such issue and presents AUTOBAHN, a durable file buffer that expedites file I/O operations.