$ lrzip/lrzip -vv -o irclogs.tar{.lrz,}
The following options are in effect for this COMPRESSION.
Threading is ENABLED. Number of CPUs detected: 4
Detected 537100288 bytes ram
Compression level 7
Nice Value: 19
Show Progress
Max Verbose
Output Filename Specified: irclogs.tar.lrz
Compression mode is: LZMA. LZO Compressibility testing enabled
Heuristically Computed Compression Window: 3 = 300MB
Storage time in seconds 1304346337
File size: 3001589760
Enabling sliding mmap mode and using mmap of 179032064 bytes with window of 358064128 bytes
Succeeded in testing 179032064 sized mmap for rzip pre-processing
Will take 9 passes
Chunk size: 358064128
Byte width: 4
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