read-only
Base two logarithm of the window size (the size of the history buffer). It
should be in the range 8..15. Larger values result in better compression
at the expense of memory usage. The default value is 15
Base two logarithm of the window size (the size of the history buffer). It
should be in the range 8..15. Larger values result in better compression
at the expense of memory usage. The default value is 15