Hi, On Wed, 15 May 2019 at 15:34, Ludovic Courtès <l...@gnu.org> wrote: > > For the record, commit 94aeec0aef03ab44e41bfc3e77c3b623cb3d607c, shortly > before 1.0, make ‘guix search’ faster (as in less CPU usage.)
Six time faster the commit message claims ;-) Awesome how only 2 lines change things. > The cold-cache timings are worse for Guix, which ends up doing a lot of > I/O to traverse all these .scm files; APT only has to go through a > couple of files I guess. Hum? I do not know how APT (say the `aptitude` implementation) works. I suppose that `aptitude update` pulls then hashes somehow a database/cache. I mean reduce the I/O with all these scattered .scm files should improve the timings. > The warm-cache timings are comparable though, which I think is good. > :-) Yes! :-) However, because the first search is slow, the final feeling is that `guix search` is slow. :-( > We could probably improve the cold-cache timings by adding synopses and > descriptions to the package cache that ‘guix pull’ builds in > ~/.config/guix/current/lib/guix/package.cache, but that would also make > that cache bigger. Not sure if it’s worth it. Hum? and why not use SQLite for this file? All the best, simon
