Per Jessen wrote:
I'm looking for a compression tool (lzma, gzip, zip et al) with the following characteristics:
1. high compression ratio 2. multiple files per archive 3. very fast decompression/extraction of single files
Compression time is largely immaterial.
Thanks for the various suggestions - I ran some fairly unscientic tests on zip, 7zip and xar: About 1000 archives, ranging from 50K to 6Mb (only 4.5M for 7zip). I recorded filesize and wall-clock time - and zip won. They were in fact all fairly good: average time for single file extraction xar - 0.058 seconds 7zip - 0.050 seconds zip - 0.036 seconds Judging by the graphs I made, 7zip shows a slight tendency to increasing time with filesize, where as zip and xar are both quite stable time-wise. I should really do some more tests with bigger archives and more files, but for the time being and for my purposes this will do. -- Per Jessen, Zürich (17.8°C) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org