Hi! On Mon, 2015-11-16 at 02:37:44 +0900, Hideki Yamane wrote: > On Thu, 12 Nov 2015 20:22:36 +0100 > Guillem Jover <guil...@debian.org> wrote: > > AFAICS if the threading is enabled in the xz-utils build, then the xz > > tool should opportunistically make use of the threaded encoder. That > > would cover dpkg-source transparently. > > > > For the dpkg-deb code, switching to use the multithreaded encoder is > > rather easy, but given that the libdpkg/dpkg-deb code is not thread-safe > > at all, overall it would be way more tricky. > > > > But, yes we'd first need the library to be available in testing at > > least. > > Thanks for your reply, Guillem. > Then, Jonathan, is there any reason to not update xz-utils these days? > Newer xz has potential to improve debian more.
Starting with dpkg 1.18.4, multithreaded xz compression should be supported out-of-the-box when using a recent enough xz command-line tool and liblzma. dpkg should in principle just only need a rebuild, although I've not run-tested the code, only build tested it. I think Jonathan would appreciate help with the new upstream version, as he mentioned on bug #731634. Thanks, Guillem
