Hey Ludo,
> $ guix size $(readlink -f /run/current-system) | head -5 > store item total self > /gnu/store/4d0p06xgaw8lqa9db0d6728kkba8bizj-qemu-5.0.0 1651.6 > 745.2 18.8% > /gnu/store/abiva5ivq99x30r2s9pa3jj0pv9g16sv-guix-1.1.0-4.bdc801e 468.0 > 268.8 6.8% > /gnu/store/111zp1qyind7hsnvrm5830jhankmx4ls-linux-libre-5.4.43 243.6 > 243.6 6.2% > /gnu/store/skxkrhgn9z0fg9hmnbcyfdgzs5w4ryrr-llvm-9.0.1 199.9 > 128.5 3.2% When building a bare-bones Guix System disk-image, "Guix", "Guile" and "Guile-static" represent 331M of .go files, see: --8<---------------cut here---------------start------------->8--- find /gnu/store/fvvpmrgnvr9jqxfn5m956xblisa8vzr4-guix-1.1.0-4.bdc801e /gnu/store/ljcrz0d86r20phszvj6s1mdyjchz79ja-guile-static-stripped-3.0.2 /gnu/store/18hp7flyb3yid3yp49i6qcdq0sbi5l1n-guile-3.0.2-name "*.go" -print0| du --files0-from=- -hc |tail -n1 --8<---------------cut here---------------end--------------->8--- If we compare it to the 943M of the "reduced" image I'm working on, it makes around 1/3 of the final image. > With 3.0.3-to-be and -O1, python-xyz.go weighs in at 3.4 MiB instead of > 5.9 MiB! Here’s the section size distribution: Wooh, interesting! Having a lighter disk-image isn't very important on desktop, but for the embedded devices with small eMMC, any improvement would be really welcome :) Thanks, Mathieu