Earlier this month I reported on the SprezzOS Raptorial project that is rewriting Debian APT with a focus on performance. Raptorial is meant to be a drop-in replacement to APT that focuses on parallelism and project art. The initial program to be published was "rapt-show-versions", which was much faster than apt-show-versions on modern hardware.
Nick Black of SprezzOS announced on Sunday that their apt-file rewrite is now done too. The raptorial-file program is ready for users. The performance wins aren't as huge as with the apt-show-versions replacement, but being 25% faster is common for this new program while some other paths improved by more than 90%.
But then after fixing a bug, it turns out that raptorial-file is about twice as fast as the Debian program. "After fixing a stupid bug , improvement is much more stark, closer to a 2x speedup. the case for raptorial-file(1) just became much more convincing."
The announcement about this new apt-file rewrite can be found on the SprezzOS mailing list.