On Thu 20 Apr 2017 14:35, l...@gnu.org (Ludovic Courtès) writes: > l...@gnu.org (Ludovic Courtès) skribis: > >> ;; 2.724686s real time, 3.117062s run time. 0.880827s spent in GC. >> scheme@(guile-user)> (version) >> $1 = "2.0.13" >> > scheme@(guile-user)> ,use(guix scripts build) > scheme@(guile-user)> ,time (guix-build "libreoffice" "certbot" "xmonad" "-n" > "--no-substitutes" "--no-build-hook") > > [...] > > ;; 1.826528s real time, 1.994426s run time. 0.382750s spent in GC. > scheme@(guile-user)> (version) > $1 = "2.2.1" > > That’s a 33% speedup compared to 2.0.
That is a 50% speedup compared to 2.0 :) If we consider its speed as being how many times you could do this per second, then 2.0 speed is 1/2.72, and 2.2.1 speed is 1/1.82. Speed ratio is then 2.72/1.82=1.4945. So 2.2.1 is 1.5x the speed of 2.0, or 50% faster :) Andy, who is not looking for praise, but who likes perf numbers :)
