CompSize
Analyzes compression types and ratios for files on btrfs filesystems.
What is CompSize?
compsize is a command-line tool for btrfs filesystems that analyzes compression types and ratios on files or directories. It helps users understand how effectively their data is being compressed by reporting disk usage, uncompressed size, and compression algorithms like zlib and zstd. The tool is particularly useful for optimizing storage and evaluating compression performance on btrfs volumes.
System administrators and Linux users managing btrfs filesystems who need to monitor compression efficiency and storage usage.
compsize provides accurate compression statistics by counting extents exactly once, ensuring reliable disk usage metrics even with reflinked or partially used files, unlike traditional tools like du or tar.
Overview
btrfs: find compression type/ratio on a file or set of files
Use Cases
Best For
- Analyzing compression ratios of files and directories on btrfs filesystems
- Monitoring storage savings from btrfs compression algorithms like zlib and zstd
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