Here's some more info on that unity sample I shared above:
Code:
Compressing 4_trialislands_scenes_4d_bunker.unity.bundle
Compressing 42,742,931 bytes with "xtool.exe" precomp -munity -c512mb -t100p $$arcdatafile$$.tmp $$arcpackedfile$$.tmp
XTool is created by Razor12911
Streams: 1509/8732732
Time: 00:00:30 (00:06:28)
Memory: 317 MB (317 MB)
Memory: 128 MB (128 MB)
8%
Errorlevel=0