portage-ng / portage / dev-ml / luv / 0.5.14-r1
emerge -vp

These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.01 s (backtrack: 0/20).

[ebuild  N     ] dev-lang/ocaml-5.5.1:0/5.5.1::gentoo  USE="ocamlopt -emacs -flambda -latex -test -xemacs" 6457 KiB
[ebuild  N     ] dev-ml/dune-3.23.1:0/3.23.1::gentoo  USE="-emacs -test" 3624 KiB
[ebuild  N     ] dev-ml/result-1.5:0/1.5::gentoo  USE="ocamlopt" 3 KiB
[ebuild  N     ] dev-ml/stdlib-shims-0.3.0::gentoo  USE="ocamlopt" 10 KiB
[ebuild  N     ] dev-ml/integers-0.8.0:0/0.8.0::gentoo  USE="ocamlopt" 15 KiB
[ebuild  N     ] dev-ml/csexp-1.5.2-r1:0/1.5.2::gentoo  USE="ocamlopt -test" 12 KiB
[ebuild  N     ] dev-ml/dune-configurator-3.21.1:0/3.21.1::gentoo  USE="ocamlopt" 3352 KiB
[ebuild  N     ] dev-ml/ocaml-ctypes-0.24.0:0/0.24.0::gentoo  USE="ocamlopt -test" 196 KiB
[ebuild  N     ] dev-ml/luv-0.5.14-r1:0/0.5.14::gentoo  USE="ocamlopt -test" 830 KiB

Total: 9 packages (9 new), Size of downloads: 14494 KiB

Wall time
1.996 s vs. 0.089 s for portage-ng