TODO revision 207753
10SN/A 212142SjuhXZ Utils To-Do List 30SN/A=================== 40SN/A 50SN/AKnown bugs 60SN/A---------- 72362SN/A 80SN/A The test suite is too incomplete. 92362SN/A 100SN/A If the memory usage limit is less than about 13 MiB, xz is unable to 110SN/A automatically scale down the compression settings enough even though 120SN/A it would be possible by switching from BT2/BT3/BT4 match finder to 130SN/A HC3/HC4. 140SN/A 150SN/A The code to detect number of CPU cores doesn't count hyperthreading 160SN/A as multiple cores. In context of xz, it probably should. 170SN/A Hyperthreading is good at least with p7zip. 180SN/A 190SN/A XZ Utils compress some files significantly worse than LZMA Utils. 200SN/A This is due to faster compression presets used by XZ Utils, and 212362SN/A can be worked around by using "xz --extreme". However, the presets 222362SN/A need some tweaking and maybe this issue can be minimized without 232362SN/A making the typical case too much slower. 240SN/A 250SN/A xz doesn't quote unprintable characters when it displays file names 265976SN/A given on the command line. 270SN/A 280SN/A tuklib_exit() doesn't block signals => EINTR is possible. 2916489Sweijun 3016489Sweijun 310SN/AMissing features 320SN/A---------------- 330SN/A 340SN/A xz doesn't support copying extended attributes, access control 350SN/A lists etc. from source to target file. 360SN/A 370SN/A Multithreaded compression 380SN/A 390SN/A Multithreaded decompression 400SN/A 410SN/A Buffer-to-buffer coding could use less RAM (especially when 421026SN/A decompressing LZMA1 or LZMA2). 431026SN/A 441026SN/A I/O library is not implemented. It will possibly be named libzzf. 451026SN/A 461026SN/A lzma_strerror() to convert lzma_ret to human readable form? 471026SN/A This is tricky, because the same error codes are used with 481026SN/A slightly different meanings. 491026SN/A 5013109Sweijun 5113109SweijunDocumentation 5213109Sweijun------------- 5315875Sweijun 5415875Sweijun Some tutorial is needed for liblzma. I have planned to write some 5515875Sweijun extremely well commented example programs, which would work as 565976SN/A a tutorial. I suppose the Doxygen tags are quite OK as a quick 5716489Sweijun reference once one is familiar with the liblzma API. 5816489Sweijun 590SN/A Document the LZMA1 and LZMA2 algorithms. 600SN/A 610SN/A