I/O Scheduling in FreeBSD’s CAM Subsystem

Abstract

FreeBSD’s default I/O scheduling policy strives for a general purpose performance across a wide range of applications and media types. Its scheduler does not allow some I/O requests to be given priority over others. It makes no allowances for write amplification in flash devices. GEOM level scheduling is available, but it is limited in what it provides. It… (More)

Topics

8 Figures and Tables

Slides referencing similar topics