XZ Utils To-Do List =================== Known bugs ---------- The test suite is too incomplete. If the memor usage limit is less than about 13 MiB, xz is unable to automatically scale down the compression settings enough even though it would be possible by switching from BT2/BT3/BT4 match finder to HC3/HC4. The code to detect number of CPU cores doesn't count hyperthreading as multiple cores. In context of xz, it probably should. Hyperthreading is good at least with p7zip. Missing features ---------------- "xz --list" xz could create sparse files when decompressing. (Some prototyping has been done.) xz doesn't support copying extended attributes, access control lists etc. from source to target file. Multithreaded compression Multithreaded decompression Buffer-to-buffer coding could use less RAM (especially when decompressing LZMA1 or LZMA2). I/O library is not implemented. It will possibly be named libzzf. Documentation ------------- Some tutorial is needed for liblzma. I have planned to write some extremely well commented example programs, which would work as a tutorial. I suppose the Doxygen tags are quite OK as a quick reference once one is familiar with the liblzma API. Document the LZMA1 and LZMA2 algorithms.