Hi! On Thu, 2015-11-12 at 22:32:07 +0900, Hideki Yamane wrote: > Just a question, newer xz-utils has multi-threaded compression support(*). > > >> * liblzma: > >> > >> - Added support for multi-threaded compression. > > If debian would introduce that version, can we get any benefit from this > for dpkg-dev? > > *) http://git.tukaani.org/?p=xz.git;a=blob;f=NEWS;hb=HEAD
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, Guillem
