On Mon, Oct 19, 2009 at 12:02 PM, Harald Schilly <[email protected]> wrote: > > On Oct 19, 8:32 pm, William Stein <[email protected]> wrote: >> It's a 659MB download. However, once you download and extract the >> zip, the resulting files still only use 659MB. > > Just curious, is there any compression at all?
No. I zipped it with zip -0 -r sage_vbox-4.1.2.zip sage_vbox-4.1.2 > It might be worthwhile > testing 7z (which you can get in windows very easy via 7-zip.org) - if > it saves >10% of the download it might be interesting to consider as > an option. The files in sage_vbox-4.1.2 are already gzip compressed squashfs images, so compressing them again should be interesting... I just tried compression level 9 (the highest I think) with 7zip, and creating the compressed archive takes a while. In the end I get the following size: 657MB compared to 659MB for zip. I don't think it is worth using 7zip for only 2MB savings, given that users will have to wait 10 minutes (say) to extract Sage instead of waiting only a few seconds with an uncompressed zip. In fact, that extraction and install only takes a few seconds is a big plus of this approach. If we were to use 7zip, we must make it a self-extracting archive for windows, or people will get too frustrated/confused (again). We could provide two versions of the same files: a standard tarball for OSX/Linux/Solaris, and a 7zip self-extracting archive for Windows. -- William --~--~---------~--~----~------------~-------~--~----~ To post to this group, send an email to [email protected] To unsubscribe from this group, send an email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
