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Postings from November 2010
On Friday 19 November 2010 22:02:48 David Cantrell wrote: > On Fri, Nov 19, 2010 at 08:53:12PM +0200, Shlomi Fish wrote: > > here is a report on compressing Graph-Easy-0.70.tar with various > > compression methods: > > > > -rw-r--r-- 1 shlomif shlomif 416916 Nov 14 22:23 Graph-Easy-0.70.tar.gz > > > > -rw-r--r-- 1 shlomif shlomif 329197 Nov 5 12:24 Graph-Easy-0.70.tar.bz2 > > -rw-r--r-- 1 shlomif shlomif 270796 Nov 14 22:21 Graph-Easy-0.70.tar.lrz > > -rw-r--r-- 1 shlomif shlomif 312844 Nov 5 12:24 Graph-Easy-0.70.tar.xz > > > > As one can see, there are significant savings in size (and bandwidth) > > by switching to .bz2 and .xz. .lrz (see > > http://ck.kolivas.org/apps/lrzip/ ) yields even more in its ZPaq > > preset, but at the cost of longer compression and even decompression > > times, so it's not preferable. My question is: > > > > 1. Will the CPAN testing and downloading toolchian will handle modules > > uploaded as .tar.bz2? (Allow to install them, unpack them, etc.) How > > about tar.xz. > > Even if it does, there's not much point. bzip2 support is nowhere near > universal, and preventing lots of users from using your code would seem > to be a poor trade-off for saving an insignificant number of bytes. One can easily install .bzip2 to unpack that the distribution and as other people noted, there is support for it in the toolchain. Furthermore, we should expect that users will be required to upgrade their setup to support newer and better technologies. Otherwise, we'd all be stuck using the original UNIX compress ( http://en.wikipedia.org/wiki/Compress - does anyone still remember it?) or maybe no compression at all, because our helpless users cannot be bothered installing even compress. > The *backpan* is so small compared to modern storage that I don't bother > with a minicpan any more, I just carry a backpan plus indices around > with me all the time on a bit of plastic the size of a postage stamp. Well, with my ADSL bandwidth it took quite a long time downloading even minicpan. > > As for the others, I've never heard of them. > .xz is http://en.wikipedia.org/wiki/Xz . http://ck.kolivas.org/apps/lrzip/ - here is information about lrzip, but note that its tighest compression (which I've used there) consumes a lot of resources, even on decompression. Welcome to 2010. > FWIW, there are 166 bzip2 files in my backpan mirror, at least some of > which have test results, so yes, the toolchain appears to work for them. > The one I bothered to check is also indexed on search.cpan.org, so that > important part of the toolchain appears to work with it too. OK, good. Regards, Shlomi Fish -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ <rindolf> She's a hot chick. But she smokes. <go|dfish> She can smoke as long as she's smokin'. Please reply to list if it's a mailing list post.Thread Previous | Thread Next