portage-ng / portage / app-shells / bash / 4.4_p23-r2
emerge -vp

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

Calculating dependencies ... done!
Dependency resolution took 1.55 s (backtrack: 0/20).

[ebuild  NS    ] app-shells/bash-4.4_p23-r2:4.4::gentoo [5.3_p9:0::gentoo] USE="net nls readline -afs -bashlogger -examples -mem-scramble -plugins (-pgo%*) (-verify-sig%)" 9209 KiB

Total: 1 package (1 in new slot), Size of downloads: 9209 KiB

Wall time
2.563 s vs. 0.010 s for portage-ng