portage-ng / portage / dev-scheme / gauche / 0.9.15-r1
pmerge --pretend --verbose
[ebuild  N     ] net-libs/mbedtls-2.28.10:0/7.14.1::gentoo USE="threads -cmac -doc -havege -programs -static-libs -test -zlib" CPU_FLAGS_X86="sse2" 3.3 MiB
[ebuild  N     ] dev-scheme/gauche-0.9.15-r1:0/0.98::gentoo USE="ipv6 -test" 9.0 MiB

Total: 2 packages (2 new), Size of downloads: 12.3 MiB


 * Running sanity checks...

 * resolver plan required 16 ops (0.01 seconds)

Wall time
0.437 s vs. 0.019 s for portage-ng