portage-ng / portage / x11-wm / vtwm / 5.4.7-r3
emerge -vp

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

Calculating dependencies ... done!
Dependency resolution took 1.06 s (backtrack: 0/20).

[ebuild  N     ] app-text/rman-3.2-r2::gentoo  78 KiB
[ebuild  N     ] x11-misc/xorg-cf-files-1.0.9::gentoo  171 KiB
[ebuild  N     ] x11-libs/libXcursor-1.2.3::gentoo  USE="-doc" 286 KiB
[ebuild  N     ] x11-misc/xbitmaps-1.1.4::gentoo  112 KiB
[ebuild  N     ] x11-apps/xsetroot-1.1.4::gentoo  127 KiB
[ebuild  N     ] x11-misc/imake-1.0.10::gentoo  152 KiB
[ebuild  N     ] x11-wm/vtwm-5.4.7-r3::gentoo  998 KiB

Total: 7 packages (7 new), Size of downloads: 1922 KiB

Wall time
2.041 s vs. 0.038 s for portage-ng