LZ4 prioritizes speed over maximum compression ratio. Typical characteristics on modern 64-bit CPUs:
Benchmarking on Win64 should measure both throughput (MB/s) and compressed size for representative datasets (text, binaries, logs, images) and consider multi-threading if using parallel block modes.
By late 2018, LZ4 had matured significantly. Version 1.8.3 brought:
The release notes from that period mention a subtle but important change: fixed a rare corruption issue when compressing memory-mapped files on Windows. For enterprise users, that was enough to standardize on 1.8.3.
LZ4 is a lossless compression algorithm, providing compression speed at hundreds of MB/s per core, typically faster than the disk I/O speed. It is widely used for real-time compression, log processing, and data serialization. lz4 v183 win64
Version 1.8.3 was a significant stable release in the LZ4 lineage. While newer versions exist today, v1.8.3 is often found in legacy systems, specific embedded applications, or software dependencies that pinned this specific version for stability.
Key Characteristics of v1.8.3:
1. Compress a File
By default, LZ4 compresses a file and adds the .lz4 extension.
lz4 filename.txt
Result: Creates filename.txt.lz4. The original file is preserved. LZ4 prioritizes speed over maximum compression ratio
2. Decompress a File
Use the -d flag to decompress.
lz4 -d filename.txt.lz4
Result: Restores filename.txt.
3. Force Overwrite
If the output file already exists, LZ4 v1.8.3 will ask for confirmation. To skip this check (useful for scripts), use -f.
lz4 -f filename.txt
lz4 -f -d filename.txt.lz4
4. Keep or Remove Source In v1.8.3, the default behavior is usually to keep the source file. Benchmarking on Win64 should measure both throughput (MB/s)
5. Streaming (Piping) LZ4 supports piping, making it powerful for backup scripts.
# Example: Compressing output from another program
some_command | lz4 > output.lz4
For developers, the Win64 package includes liblz4.dll and liblz4.lib.
A notable feature of v1.8.3 is the stability of its API. Many C# and Java wrappers