Using dpkg in multi thread decompression

Question

I have the following problem, i need to run installation process using DPKG but on all CPU cores, all i can find are ways to compress the files using pixz after dpkg source code modification but absolutly nothing about decompression instalation it self.

Do anyone did sth like that? or is there some more detailed description/documentation of dpkg source code? Thanks in advance.

Answer 1

This was due to missing multi-threaded support in liblzma upstream, but this has landed there already. A release of liblzma has also been made, it just needs to be uploaded to Debian. Once that's done, I've already got the code to make dpkg use the multi-threaded decompression support for xz. It should not be too long now I guess. But that will only hit Debian unstable/testing until the next stable release happens.