# MetaCache: Efficient Metadata Caching in Linux file system

**Authors:** Tanmay Agrawal, Ashay Shirwadkar, Pratik Gaikar, Kushagra Verma  
**arXiv:** [1409.8239](https://arxiv.org/abs/1409.8239)  
**Date:** 2014-09-29  
**Summary page:** https://www.summarizepaper.com/en/paper/1409.8239v1/

## Key points

- The paper addresses the challenge of managing millions of tiny files in Linux file systems
- High metadata operations contribute to low metadata performance
- The authors propose a metadata cache solution to accelerate metadata access
- Implementation of this optimization technique can improve read and write rates for file systems like EXT2, EXT4, BTRFS, etc.
- Efficient metadata caching is important for enhancing overall system performance with large volumes of small files
- The proposed approach offers a practical solution for managing extensive amounts of data and directories in Linux file systems.

## Summary

The paper titled "MetaCache: Efficient Metadata Caching in Linux file system" addresses the challenge faced by Linux file systems in managing millions of tiny files for various applications. This results in higher metadata operations that contribute to low metadata performance. To overcome this issue, the authors propose a solution in the form of a metadata cache that accelerates metadata access for Linux file systems. By implementing this optimization technique, file systems like EXT2, EXT4, BTRFS, etc., can significantly improve their read and write rates. This paper emphasizes the importance of efficient metadata caching to enhance overall system performance when dealing with massive volumes of small files. The proposed approach offers a practical solution to mitigate the challenges associated with managing extensive amounts of data and directories within Linux file systems.