2014-09-01 21:20 GMT+09:00 Guillem Jover <guil...@debian.org>: > There seems to be some packages overriding the default compression > level for xz to 9. This means dpkg-deb will require way more memory on > both compression and decompression usually for extremely little gain, > and might even fail on some systems with low memory (see #757740 for > an example). But the real issue is that (as mentioned on the xz man > page), using such high levels might actually make no sense at all > when being using with data that is smaller than the dictionary size. > > From doing a quick search on <http://codesearch.debian.net/> for > “dpkg-deb.*-z9” and “dh_builddeb.*-z9”, but w/o looking in detail, it > seems that most packages are or have been maintained by Daniel Baumann > or the Fonts Team (both CCed). Was there an actual reason to use -z9, > beside maybe trying to get the “bestest” compression possible? :)
"dh_builddeb -- -Zxz -Sextreme -z9" has been introduced to the pkg-font team when dpkg-deb default is not xz. In my quick experiments with some font packages, "-Sextream -z9" option still gives ~4% smaller size than the default. IMO this is still significant for big font packages. -- To UNSUBSCRIBE, email to debian-devel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/CAEe2ifUQd55wfuaMXPNkdgjkX+=JQDEOj=yqdgygejqqwrk...@mail.gmail.com
