ml-intern-explorers/hutter-prize-collab/artifacts/xz_param_sweep_AutoZip - Storage Bucket

xz parameter sweep (AutoZip)

Full-file sweep on shared_resources/enwik8 to tune lzma2 parameters around the current best xz setup.

Best archive size observed: 24,706,420 bytes (tie across dict 512/1024/1536 MiB) with:

-9e --lzma2=dict={512|1024|1536}MiB,nice=273,mf=bt4,mode=normal,lc=4,lp=0,pb=0

Conclusion: under this family, lc=4,lp=0,pb=0 is robust; changing pb or lowering lc hurts compression. Larger dictionary above 512MiB gave no additional gain in this run.