portage-ng / portage / sci-physics / clhep / 2.4.7.1-r1
pmerge --pretend --verbose
[ebuild  N     ] sci-physics/clhep-2.4.7.1-r1:2/2.4.7.1::gentoo USE="threads -doc -static-libs -test" 1.2 MiB

Total: 1 package (1 new), Size of downloads: 1.2 MiB


 * Running sanity checks...

 * resolver plan required 4 ops (0.00 seconds)

Wall time
0.426 s vs. 0.004 s for portage-ng