Very cool! I appreciate the details :-) I ran a quick with the tool (xzminidec) that comes with XZ Embedded. gcc -O3 -s -D XZ_USE_CRC64 -o xzminidec xzmin

Very cool! I appreciate the details :-) I ran a quick with the tool (xzminidec) that comes with XZ Embedded. gcc -O3 -s -D XZ_USE_CRC64 -o xzminidec xzminidec.c xz_crc32.c xz_crc64.c xz_dec_stream.c xz_dec_lzma2.c du -b xzminidec 19472 xzminidec ldd xzminidec linux-vdso.so.1 (0x00007ffe9905c000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f105c83b000) /lib64/ld-linux-x86-64.so.2 (0x000055d818666000) du -b enwik8.zip 36445475 enwik8.zip du -b enwik8.xz 26375764 enwik8.xz time unzip enwik8.zip real 0m1.023s user 0m0.948s sys 0m0.068s time cat enwik8.xz | ./xzminidec > out-xz.txt real 0m2.598s user 0m2.504s sys 0m0.136s cmp enwik8 out-xz.txt (empty) unzip is faster but the xz decoder is very tiny and the compressed input file is smaller.