List of FSL FUSE Git repositories

This page contains supporting material for "To FUSE or Not to FUSE: Performance of User-Space File Systems" paper by Bharath Kumar Reddy Vangoor, Vasily Tarasov, and Erez Zadok published in the USENIX FAST 2017 conference.

1. To study the FUSE design and implementation, we implemented a simple Stackable File System (StackFS) using FUSE using low-level API. The code is published at the following location (git repo):
   https://github.com/sbu-fsl/fuse-stackfs
   This repository also contains the following additional information:
   • Workload files that we used to characterize the FUSE performance. The workload files are written for Filebench using its Workload Modeling Language (WML).
   • Results for all the workloads on HDD and SSD for EXT4 and two configurations of StackFS file system.
   • Automated scripts that we used for invoking the workloads and parsing useful information from results.
   • All the plotting scripts (written in octave) and plots that we generated throughout the project.
   
   
2. To know the runtime statistics of FUSE we instrumented the FUSE kernel code and FUSE library to collect the histograms of time that each request spends at different stages (e.g., in different FUSE queues). We also added traces (only in kernel) to learn the detailed code flow. Instrumentation for kernel is available at:
   https://github.com/sbu-fsl/fuse-kernel-instrumentation
   under "fuse_kernel_instrumentation" branch.

Instrumentation added to FUSE library is available at:
https://github.com/sbu-fsl/libfuse
under "fuse_lib_instrumentation" branch.

This project is conducted in the Stony Brook Filesystems and Storage Lab (FSL).