n73sm ~ # time emerge -vuDN @world # j5 done

>>> No outdated packages were found on your system.

 * GNU info directory index is up-to-date.
 * After world updates, it is important to remove obsolete packages with
 * emerge --depclean. Refer to `man emerge` for more information.

real    308m23,131s
user    1241m26,607s
sys     86m58,464s

#

n73sm ~ # time emerge -pvuDN @world

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

Calculating dependencies... done!
[ebuild     U  ] sys-devel/llvm-common-5.0.1::gentoo [4.0.1::gentoo] 22 880 KiB
[ebuild     U  ] app-portage/cpuid2cpuflags-5::gentoo [1::gentoo] PYTHON_TARGETS="(-pypy%) (-python2_7%*) (-python3_4%)" 71 KiB
[ebuild     U  ] dev-libs/vala-common-0.36.7::gentoo [0.34.9::gentoo] 2 788 KiB
[ebuild     U  ] app-text/qpdf-7.0.0:0/18::gentoo [5.1.1-r1:0/13::gentoo] USE="examples -doc -perl -static-libs {-test}" 6 889 KiB
[ebuild     U  ] sys-apps/sandbox-2.12::gentoo [2.10-r4::gentoo] ABI_X86="(32) (64) (-x32)" 415 KiB
[ebuild     U  ] virtual/libelf-3:0/1::gentoo [1:0/1::gentoo] ABI_X86="(64) -32 (-x32)" 0 KiB
[ebuild     U  ] app-admin/eselect-1.4.11::gentoo [1.4.8::gentoo] USE="-doc -emacs -vim-syntax" 174 KiB
[ebuild  N     ] dev-util/meson-0.43.0::gentoo  PYTHON_TARGETS="python3_5 -python3_4 -python3_6" 1 042 KiB
[ebuild     U  ] virtual/perl-File-Spec-3.630.100_rc-r3::gentoo [3.630.100_rc-r2::gentoo] 0 KiB
[ebuild     U  ] virtual/perl-Test-Harness-3.360.100_rc-r3::gentoo [3.360.100_rc-r2::gentoo] 0 KiB
[ebuild     U  ] virtual/perl-ExtUtils-MakeMaker-7.100.200_rc-r3::gentoo [7.100.200_rc-r2::gentoo] 0 KiB
[ebuild     U  ] virtual/perl-IO-1.360.100_rc-r3::gentoo [1.360.100_rc-r2::gentoo] 0 KiB
[ebuild     U  ] virtual/perl-Encode-2.800.100_rc-r3::gentoo [2.800.100_rc-r2::gentoo] 0 KiB
[ebuild     U  ] virtual/perl-Parse-CPAN-Meta-1.441.700.100_rc-r3::gentoo [1.441.700.100_rc-r2::gentoo] 0 KiB
[ebuild  NS    ] sys-kernel/gentoo-sources-4.9.76-r1:4.9.76-r1::gentoo [4.9.72:4.9.72::gentoo] USE="-build -experimental -symlink" 1 423 KiB
[ebuild     U  ] virtual/perl-libnet-3.80.100_rc-r3::gentoo [3.80.100_rc-r2::gentoo] 0 KiB
[ebuild     U  ] dev-perl/Net-Daemon-0.480.0-r2::gentoo [0.480.0-r1::gentoo] 0 KiB
[ebuild     U  ] virtual/perl-Storable-2.560.100_rc-r3::gentoo [2.560.100_rc-r2::gentoo] 0 KiB
[ebuild     U  ] virtual/perl-Sys-Syslog-0.330.100_rc-r5::gentoo [0.330.100_rc-r4::gentoo] 0 KiB
[ebuild     U  ] virtual/perl-XSLoader-0.220.0-r3::gentoo [0.220.0-r2::gentoo] 0 KiB
[ebuild     U  ] virtual/perl-JSON-PP-2.273.0.100_rc-r5::gentoo [2.273.0.100_rc-r4::gentoo] 0 KiB
[ebuild     U  ] virtual/perl-CPAN-2.110.100_rc-r5::gentoo [2.110.100_rc-r4::gentoo] 0 KiB
[ebuild     U  ] virtual/perl-Digest-SHA-5.950.100_rc-r5::gentoo [5.950.100_rc-r4::gentoo] 0 KiB
[ebuild     U  ] virtual/perl-Digest-1.170.100_rc-r5::gentoo [1.170.100_rc-r4::gentoo] 0 KiB
[ebuild     U  ] virtual/perl-Memoize-1.30.100_rc-r5::gentoo [1.30.100_rc-r4::gentoo] 0 KiB
[ebuild     U  ] virtual/perl-IO-Compress-2.69.1_rc-r3::gentoo [2.69.1_rc-r2::gentoo] 0 KiB
[ebuild     U  ] dev-perl/Net-SSLeay-1.820.0::gentoo [1.810.0::gentoo] USE="examples -libressl -minimal {-test}" 390 KiB
[ebuild     U  ] dev-util/gdbus-codegen-2.52.3::gentoo [2.50.3::gentoo] PYTHON_TARGETS="python2_7 python3_5 -python3_4 -python3_6%" 7 500 KiB
[ebuild     U  ] dev-libs/glib-2.52.3:2::gentoo [2.50.3-r1:2::gentoo] USE="dbus (mime) xattr -debug (-fam) (-selinux) -static-libs -systemtap {-test} -utils" ABI_X86="32 (64) (-x32)" PYTHON_TARGETS="python2_7" 0 KiB
[ebuild     U  ] dev-libs/libxml2-2.9.7:2::gentoo [2.9.6:2::gentoo] USE="examples python readline -debug -icu -ipv6 -lzma -static-libs {-test}" ABI_X86="32 (64) (-x32)" PYTHON_TARGETS="python2_7 python3_5 -python3_4 -python3_6" 5 340 KiB
[ebuild     U  ] sys-apps/kmod-24::gentoo [23::gentoo] USE="tools zlib -debug -doc -lzma -python -static-libs" PYTHON_TARGETS="python2_7 python3_5 -python3_4 -python3_6%" 525 KiB
[ebuild  r  U  ] net-fs/libnfs-2.0.0:0/11::gentoo [1.9.7:0/8::gentoo] USE="examples -static-libs" 197 KiB
[ebuild  NS    ] dev-lang/spidermonkey-38.2.1_rc0:38::gentoo [1.8.5-r6:0/mozjs185::gentoo, 24.2.0-r4:24::gentoo] USE="static-libs system-icu -custom-cflags -custom-optimization -debug -jit -minimal {-test}" 24 434 KiB
[ebuild     U  ] media-libs/babl-0.1.38::gentoo [0.1.18::gentoo] USE="(-altivec)" CPU_FLAGS_X86="mmx sse sse2 sse4_1 -f16c" 638 KiB
[ebuild     U  ] dev-libs/libpipeline-1.4.2::gentoo [1.4.0::gentoo] USE="-static-libs {-test}" 808 KiB
[ebuild     U  ] app-text/iso-codes-3.76::gentoo [3.75::gentoo] 3 394 KiB
[ebuild     U  ] app-portage/repoman-2.3.6::gentoo [2.3.3::gentoo] PYTHON_TARGETS="python2_7 python3_5 -python3_4 -python3_6" 78 KiB
[ebuild  NS    ] dev-lang/vala-0.36.7:0.36::gentoo [0.34.9:0.34::gentoo] USE="{-test}" 0 KiB
[ebuild     U  ] dev-cpp/glibmm-2.52.1:2::gentoo [2.50.1:2::gentoo] USE="-debug -doc {-test}" ABI_X86="(64) -32 (-x32)" 6 300 KiB
[ebuild  NS    ] sys-devel/llvm-5.0.1:5::gentoo [4.0.1-r1:4::gentoo] USE="libffi ncurses -debug -doc -gold -libedit {-test}" ABI_X86="32 (64) (-x32)" LLVM_TARGETS="AMDGPU BPF NVPTX (X86) -AArch64 -ARM -Hexagon -Lanai -MSP430 -Mips -PowerPC -Sparc -SystemZ -XCore" 96 KiB
[ebuild     U  ] sys-libs/libomp-5.0.1::gentoo [4.0.1::gentoo] USE="-hwloc -ompt {-test}" ABI_X86="(64) -32 (-x32)" 2 027 KiB
[ebuild     U  ] media-libs/mesa-17.2.8::gentoo [17.2.7::gentoo] USE="classic dri3 egl gallium gbm llvm nptl -bindist -d3d9 -debug -gles1 -gles2 -opencl -openmax -osmesa -pax_kernel -pic (-selinux) -unwind -vaapi -valgrind -vdpau -vulkan -wayland -xa -xvmc" ABI_X86="32 (64) (-x32)" VIDEO_CARDS="intel (-freedreno) -i915 -i965 (-imx) -nouveau -r100 -r200 -r300 -r600 -radeon -radeonsi (-vc4) -virgl (-vivante) -vmware" 10 150 KiB
[ebuild  NS    ] sys-libs/compiler-rt-sanitizers-5.0.1:5.0.1::gentoo [4.0.1:4.0.1::gentoo] USE="{-test}" 1 464 KiB
[ebuild  NS    ] sys-devel/clang-5.0.1:5::gentoo [4.0.1:4::gentoo] USE="static-analyzer xml -debug -default-compiler-rt -default-libcxx -doc {-test} (-z3)" ABI_X86="(64) -32 (-x32)" LLVM_TARGETS="AMDGPU BPF NVPTX (X86) -AArch64 -ARM -Hexagon -Lanai -MSP430 -Mips -PowerPC -Sparc -SystemZ -XCore" PYTHON_TARGETS="python2_7" 11 846 KiB
[ebuild  NS    ] sys-libs/compiler-rt-5.0.1:5.0.1::gentoo [4.0.1:4.0.1::gentoo] USE="clang {-test}" 0 KiB
[ebuild  NS    ] sys-devel/clang-runtime-5.0.1:5.0.1::gentoo [4.0.1:4.0.1::gentoo] USE="compiler-rt openmp sanitize -libcxx" ABI_X86="(64) -32 (-x32)" 0 KiB
[ebuild     U  ] dev-libs/gobject-introspection-common-1.52.1::gentoo [1.50.0::gentoo] 1 352 KiB
[ebuild     U  ] dev-libs/gobject-introspection-1.52.1::gentoo [1.50.0::gentoo] USE="cairo -doctool {-test}" PYTHON_SINGLE_TARGET="python3_5 -python2_7 -python3_4 -python3_6%" PYTHON_TARGETS="python2_7 python3_5 -python3_4 -python3_6%" 0 KiB
[blocks b      ] <dev-libs/gobject-introspection-1.52.1 ("<dev-libs/gobject-introspection-1.52.1" is blocking dev-libs/gobject-introspection-common-1.52.1)
[ebuild     U  ] x11-libs/gdk-pixbuf-2.36.11:2::gentoo [2.36.10-r2:2::gentoo] USE="X introspection jpeg tiff -debug -jpeg2k {-test}" ABI_X86="32 (64) (-x32)" 5 543 KiB
[ebuild     U  ] dev-libs/atk-2.24.0::gentoo [2.22.0::gentoo] USE="introspection nls {-test}" ABI_X86="32 (64) (-x32)" 732 KiB
[ebuild     U  ] gnome-base/gsettings-desktop-schemas-3.24.1::gentoo [3.22.0::gentoo] USE="introspection" 624 KiB
[ebuild     U  ] dev-python/pygobject-3.24.1:3::gentoo [3.22.0:3::gentoo] USE="cairo examples threads {-test}" PYTHON_TARGETS="python2_7 python3_5 -python3_4 -python3_6" 741 KiB
[ebuild     U  ] x11-libs/pango-1.40.14::gentoo [1.40.12::gentoo] USE="X introspection {-test}" ABI_X86="32 (64) (-x32)" 839 KiB
[ebuild     U  ] dev-libs/libinput-1.9.4:0/10::gentoo [1.7.3:0/10::gentoo] USE="-doc% {-test}" INPUT_DEVICES="-wacom" 462 KiB
[ebuild     U  ] virtual/libgudev-232::gentoo [230::gentoo] USE="introspection -static-libs" ABI_X86="(64) -32 (-x32)" 0 KiB
[ebuild     U  ] app-accessibility/at-spi2-core-2.24.1:2::gentoo [2.22.1:2::gentoo] USE="X introspection" ABI_X86="(64) -32 (-x32)" 442 KiB
[ebuild     U  ] app-accessibility/at-spi2-atk-2.24.1:2::gentoo [2.22.0:2::gentoo] USE="{-test}" ABI_X86="(64) -32 (-x32)" 302 KiB
[ebuild     U  ] x11-themes/adwaita-icon-theme-3.24.0::gentoo [3.22.0-r2::gentoo] USE="branding" 20 233 KiB
[ebuild     U  ] gnome-base/gnome-desktop-3.24.2:3/12::gentoo [3.22.2:3/12::gentoo] USE="introspection udev -debug {-test}" 1 040 KiB
[ebuild     U  ] x11-libs/gtksourceview-3.24.6:3.0/3::gentoo [3.22.2:3.0/3::gentoo] USE="introspection -glade {-test} -vala" 1 586 KiB
[ebuild     U  ] dev-libs/gjs-1.48.7::gentoo [1.46.0::gentoo] USE="cairo examples gtk {-test}" 582 KiB
[ebuild     U  ] x11-libs/vte-0.48.4:2.91::gentoo [0.46.2:2.91::gentoo] USE="crypt introspection -debug -glade -vala -vanilla%" 991 KiB
[ebuild     U  ] gnome-extra/zenity-3.24.0::gentoo [3.22.0::gentoo] USE="libnotify -debug -webkit" 1 060 KiB
[ebuild     U  ] media-gfx/simple-scan-3.24.1::gentoo [3.22.0.1::gentoo] USE="-colord" 654 KiB
[ebuild     U  ] net-print/cups-filters-1.17.9::gentoo [1.16.4::gentoo] USE="dbus foomatic jpeg ldap pdf png postscript tiff -ipp_autosetup -pclm% -perl -static-libs {-test} -zeroconf" 1 420 KiB
[ebuild     U  ] media-gfx/graphviz-2.40.1-r1::gentoo [2.38.0-r1::gentoo] USE="X cairo doc examples gtk nls pdf qt5%* static-libs svg -devil -gdk-pixbuf -gts -guile -java -lasi -perl -postscript -python -ruby -tcl (-qt4%*)" PYTHON_TARGETS="python2_7" 25 033 KiB
[ebuild     U  ] media-libs/openal-1.18.2-r1::gentoo [1.15.1-r2::gentoo] USE="alsa pulseaudio qt5%* (-coreaudio) -debug -jack% -oss -portaudio (-neon%)" ABI_X86="(64) -32 (-x32)" CPU_FLAGS_X86="sse sse2%* sse4_1%*" 625 KiB
[ebuild     U  ] media-video/ffmpeg-3.3.6:0/55.57.57::gentoo [3.3.5:0/55.57.57::gentoo] USE="X alsa bzip2 encode fdk gpl hardcoded-tables iconv mp3 network opengl postproc pulseaudio sdl static-libs threads truetype vorbis x264 x265 xcb xvid zlib (-altivec) -amr -amrenc -bluray -bs2b -cdio -celt -chromaprint -chromium -cpudetection -debug -doc -flite -fontconfig -frei0r -fribidi -gcrypt -gme -gmp -gnutls -gsm -iec61883 -ieee1394 -jack -jpeg2k -kvazaar -ladspa -libass -libcaca -libilbc -librtmp -libsoxr -libv4l -lzma (-mipsdspr1) (-mipsdspr2) (-mipsfpu) (-mmal) -modplug -nvenc -openal -openh264 -openssl -opus -oss -pic -rubberband -samba -schroedinger -snappy -sofalizer -speex -ssh {-test} -theora -twolame -v4l -vaapi -vdpau -vpx -wavpack -webp -zeromq -zimg -zvbi" ABI_X86="32 (64) (-x32)" CPU_FLAGS_X86="aes avx mmx mmxext sse sse2 sse3 sse4_1 sse4_2 ssse3 -3dnow -3dnowext -avx2 -fma3 -fma4 -xop" FFTOOLS="aviocat cws2fws ffescape ffeval ffhash fourcc2pixfmt graph2dot ismindex pktdumper qt-faststart sidxindex trasher" 9 711 KiB
[ebuild     U  ] media-video/cheese-3.24.0:0/8::gentoo [3.22.1:0/8::gentoo] USE="introspection {-test}" 1 804 KiB
[ebuild     U  ] gnome-base/nautilus-3.24.2.1::gentoo [3.22.3::gentoo] USE="exif introspection previewer -gnome (-packagekit) (-selinux) -sendto {-test} -tracker -xmp" 5 023 KiB
[ebuild     U  ] app-arch/file-roller-3.24.1::gentoo [3.22.3::gentoo] USE="libnotify nautilus%* (-packagekit)" 1 395 KiB
[ebuild     U  ] app-cdr/brasero-3.12.2-r1:0/3.1::gentoo [3.12.2:0/3.1::gentoo] USE="css introspection libburn mp3 nautilus (-packagekit) -playlist {-test} -tracker" 0 KiB
[ebuild     U  ] sys-fs/udisks-2.7.4-r1:2::gentoo [2.7.4:2::gentoo] USE="acl gptfdisk introspection nls -cryptsetup -debug (-elogind) -lvm (-selinux) -systemd" 0 KiB
[ebuild     U  ] sys-apps/gnome-disk-utility-3.24.1::gentoo [3.22.1::gentoo] USE="-fat -gnome -systemd" 1 903 KiB
[ebuild  rR    ] media-tv/kodi-17.3-r1::gentoo  USE="X alsa bluetooth caps cec css dbus debug dvd mysql nfs opengl pulseaudio sftp (system-ffmpeg) udev udisks upnp upower webserver xslt -airplay -bluray -gles -java -libressl -libusb -lirc -nonfree -samba -systemd {-test} -vaapi -vdpau -zeroconf" PYTHON_TARGETS="python2_7" 0 KiB
[ebuild     U  ] net-libs/webkit-gtk-2.18.5:4/37::gentoo [2.18.4:4/37::gentoo] USE="(X) egl geolocation gstreamer introspection jit libnotify opengl spell webgl (-aqua) -coverage -doc -gles2 -gnome-keyring -nsplugin {-test} -wayland" 14 482 KiB
[ebuild     U  ] gnome-base/gvfs-1.32.1-r1::gentoo [1.30.4::gentoo] USE="cdda gtk http policykit udev udisks -afp -archive -bluray (-elogind) -fuse -gnome-keyring -gnome-online-accounts -google -gphoto2 -ios -mtp -nfs -samba -systemd {-test} -zeroconf" 1 823 KiB
[ebuild     U  ] app-text/evince-3.24.2:0/evd3.4-evv3.3::gentoo [3.22.1-r1:0/evd3.4-evv3.3::gentoo] USE="djvu dvi introspection nsplugin postscript tiff -gnome -gnome-keyring -gstreamer -nautilus -t1lib -xps" 3 427 KiB

Total: 78 packages (68 upgrades, 1 new, 8 in new slots, 1 reinstall), Size of downloads: 214 676 KiB
Conflict: 1 block

The following packages are causing rebuilds:

  (net-fs/libnfs-2.0.0:0/11::gentoo, ebuild scheduled for merge) causes rebuilds for:
    (media-tv/kodi-17.3-r1:0/0::gentoo, ebuild scheduled for merge)

real	4m9,614s
user	4m5,024s
sys	0m1,114s