Hi This is a really good news :)
The xz lib can not be compiled with MS cl.exe and with every non C99 compatible C compiler. But, an already compiled library (with mingw) should be usable with cl.exe (please do not ask me how they achieve to do that). These infos are in the README Have to test, but I have no timeline for that yet. Hope have time during january for that task. Emmanuel Le jeu 31/12/09 16:32, "Manuel Schneider" [email protected] a écrit: > What should I say? > > Great! Very good work done, Tommi! > > So does this mean we can dismiss all other compression algorithms? > > What about the streaming mode when uncompressing? You talked about that > as you said we could improve memory usage on small devices. > > Greetings and a good year to all of us! > > /Manuel > > > Am 31.12.2009 16:03, schrieb Tommi M�kitalo: > > Hi, > > > > I talked with the xz developer in IRC and he helped > me to reduce memory usage. > > > The problem was, that compressing with lzma with 9 > uncompressing needs about > 65MB of RAM. The needed memory is in fact dependend > of used compression level. > Using level 3 reduced the memory usage to about > 1,5MB, that it works now on > the NanoNote. There is a additional flag > LZMA_PRESET_EXTREME, which makes > compressing slower but compression ratio better. > Using 3 + extreme results in > a file, which works on Nanonote while the size is > almost identical with 9 or > bzip2. > > > > Uncompressing bzip2 chunks take about 2 seconds > while lzma needs 0,5 seconds > on the nanonote. So we keep the size while improving > speed with the factor > 4!!! > > > > Have a good Year. > > > > Tommi > > > _______________________________________________ > dev-l mailing list > > de...@openz > im.org > https://intern.openzim.org/mailman/listinfo/dev-l > >> > > -- > Regards > Manuel Schneider > > Wikimedia CH - Verein zur F�rderung Freien Wissens > Wikimedia CH - Association for the advancement of free knowledge > www.wikimedia.ch _______________________________________________ > dev-l mailing list > de...@openz > im.org https://intern.openzim.org/mailman/listinfo/dev-l > > _______________________________________________ dev-l mailing list [email protected] https://intern.openzim.org/mailman/listinfo/dev-l
