Since I only have 12 perf cores on this Mac, I tried the xz test again with 12 threads. xz -T12 -9 -k 993376236 69.0% c=83 d=9 ~10% faster for compre

Since I only have 12 perf cores on this Mac, I tried the xz test again with 12 threads. xz -T12 -9 -k 993376236 69.0% c=83 d=9 ~10% faster for compression with the same size output.