Try the different compression options -m1 through -m5. The default is -m1, which is for fast compression. Also, compressing all the files at once works better than compressing each in a separate command. You can also increase the block size like -m58 to compress at level 5 with 2^8 MB blocks.
ZPAQ has to decompress a whole 16 MB (-m14) or 64 MB block (-m26 and up) to extract any files wholly are partly contained in them. All compressors with a solid mode work this way. Zip compresses each file independently. Some archivers have a solid mode option to improve compression. On Wed, May 27, 2020, 6:00 PM stefan.reich.maker.of.eye via AGI < [email protected]> wrote: > I tried ZPAQ on the two multi-file examples. > > In one of them, ZPAQ trails slightly behind 7z in compression (21k over > 19k), beating my solution by a few k. > > In the other example, ZPAQ trails the field (LINECOMP 18k, 7zip 22k, ZPAQ > 48k). In all fairness, all of the compressors do a good job here though > compared to the input size. > > What if I want to extract one file from a big zpaq archive? Does it have > to go through all the files before it? My solution specifically aims to > avoid that problem. > *Artificial General Intelligence List <https://agi.topicbox.com/latest>* > / AGI / see discussions <https://agi.topicbox.com/groups/agi> + > participants <https://agi.topicbox.com/groups/agi/members> + delivery > options <https://agi.topicbox.com/groups/agi/subscription> Permalink > <https://agi.topicbox.com/groups/agi/Tb2cf064c700f181c-M3d3bc6ced66733165026aaec> > ------------------------------------------ Artificial General Intelligence List: AGI Permalink: https://agi.topicbox.com/groups/agi/Tb2cf064c700f181c-Md089e2623007a0811a5af33e Delivery options: https://agi.topicbox.com/groups/agi/subscription
