Lz4 V1.8.3 Win64 ((top)) -

LZ4 has a dictionary window of up to 4 MB by default. For files smaller than 4 KB, compression may actually increase size (negative ratio). Use the -BD flag to enable block dependency across smaller blocks, or batch small files into a tar archive first.

Test your hardware’s raw throughput:

on multi-core systems. At its default settings, v1.8.3 delivers: Compression Speed: > 500 MB/s per core. Decompression Speed: Multiple GB/s per core. Quick Win64 CLI Usage If you've just downloaded the for Windows, here are the essential commands: lz4.exe input_file input_file.lz4 Decompress: lz4.exe -d input_file.lz4 High Compression: lz4.exe -9 input_file Benchmark Your System: lz4.exe -b lz4 v1.8.3 win64

: Basic instructions on usage, command-line syntax, and build information.

Basic syntax:

Using Windows Explorer or 7-Zip, extract the ZIP file. Inside, you will find:

| Operation | Speed (MB/s) | Notes | |-----------|--------------|-------| | Compression (level 1) | 750 | Default fastest | | Compression (level 9) | 60 | Still faster than gzip -1 | | Decompression | 3200 | Near memcpy speed | | Ratio (enwik8) | 1.98× | 100 MB → 50.5 MB | | Ratio (random data) | 1.0× | No compression applied | LZ4 has a dictionary window of up to 4 MB by default

Open a command prompt and type: