On Mon, Jan 12, 2009 at 7:42 PM, Eric Bélanger <snowmaniscool@gmail.com> wrote:
On Mon, Jan 12, 2009 at 5:22 PM, Jan de Groot <jan@jgc.homeip.net> wrote:
On Mon, 2009-01-12 at 15:15 -0600, Aaron Griffin wrote:
Where did this go?
Do we have any additional opinions regarding LZMA? Personally, I think LZMA is great, and the new licensing (LGPL?) opens a lot of doors. Personally, I can't wait to see squashfs-lzma to pick up speed.
I agree with Dan though - libarchive isn't just a dep of pacman. We also ship bsdtar, which I use quite often.
I think having an LZMA-enabled version of libarchive/bsdtar would fix this bug also: http://bugs.archlinux.org/task/12712
At this moment, rpmextract can't extract RPM files that use LZMA compression. To solve the above bug partially, I'm thinking about rewriting file-roller to use bsdtar for extracting compressed cpio files. Without LZMA support in bsdtar, this will still fail for SuSE's RPM files though.
These are all good reason for lzma support in libarchive. No objections from me.
Some non-benefits of LZMA for those that brought up compression of packages : $ ./testzip.sh openoffice-base-3.0.0-4-x86_64.pkg.tar gzip: zip openoffice-base-3.0.0-4-x86_64.pkg.tar 21.50user 0.19system 0:21.71elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+235minor)pagefaults 0swaps gzip: unzip openoffice-base-3.0.0-4-x86_64.pkg.tar 2.85user 0.21system 0:03.07elapsed 100%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+628minor)pagefaults 0swaps bzip2: zip openoffice-base-3.0.0-4-x86_64.pkg.tar 57.28user 0.27system 0:57.58elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2025minor)pagefaults 0swaps bzip2: unzip openoffice-base-3.0.0-4-x86_64.pkg.tar 17.50user 0.43system 0:17.95elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+1079minor)pagefaults 0swaps lzma: zip openoffice-base-3.0.0-4-x86_64.pkg.tar 288.53user 0.42system 4:52.06elapsed 98%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+21388minor)pagefaults 0swaps lzma: unzip openoffice-base-3.0.0-4-x86_64.pkg.tar 10.18user 0.36system 0:10.57elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2642minor)pagefaults 0swaps Yes, LZMA took nearly 5 minutes to compress this package which gzip accomplished in 22 seconds.