portage-ng / portage / app-shells / bash / 3.1_p23
emerge -vp

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

Calculating dependencies ... done!
Dependency resolution took 1.52 s (backtrack: 0/20).

[ebuild  NS    ] app-shells/bash-3.1_p23:3.1::gentoo [5.3_p9:0::gentoo] USE="net nls readline -afs -static% (-bashlogger%) (-examples%) (-mem-scramble%) (-pgo%*) (-plugins%) (-verify-sig%)" 2542 KiB

Total: 1 package (1 in new slot), Size of downloads: 2542 KiB

Wall time
2.526 s vs. 0.009 s for portage-ng