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Amazon FSx for Lustre improves directory listing performance by up to 5x

Published
November 18, 2025
https://aws.amazon.com/about-aws/whats-new/2025/11/fsx-lustre-directory-listing-performance-5x/

Amazon FSx for Lustre

Now delivers up to 5x faster directory listing (ls) performance, allowing you to browse and analyze the contents of your file systems more efficiently.

Amazon FSx for Lustre is a high-performance, cost-effective, and scalable file storage service for compute-intensive workloads like machine learning training, financial analytics, and high-performance computing. ML researchers, data scientists, and developers who use FSx for Lustre for compute-intensive workloads commonly use their file systems to store data for interactive use cases like home directories and source code repositories. Today's performance improvement makes FSx for Lustre even faster for these interactive use cases by reducing the time it takes to list and analyze the contents of directories using "ls".

What to do

Source: AWS release notes




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