Am 26.01.2014 15:35, schrieb Nikos Chantziaras:
> Anyone else noticed this yet? Some portage update seems to have made
> "emerge -uDN @world" perform about 10 times slower than before. It used
> to take seconds, now it takes about 4 minutes only to tell me that
> there's nothing to update. And it does that every time, even directly in
> succession and with the caches warm.
> 
> Is it just me?
> 
> 

As a remedy, you can try to use portage with pypy. I've used this setup
for half a year and it works well.

make.conf:
PYTHON_TARGETS="python2_7 python3_3 pypy2_0"

/etc/portage/package.keywords:
dev-python/pypy
virtual/pypy

/etc/portage/package.use:
sys-apps/portage pypy2_0

/etc/portage/profile/package.use.mask
sys-apps/portage -python_targets_pypy2_0 -pypy2_0

I could give you figures for the performance improvement but they are
probably not very helpful as I have 289 overlays active. That means
portage regularly requires more than a Gig memory for dependency
calculation.

Downsides:
- emerging pypy takes forever and uses a lot of memory
- userfetch and userpriv don't work

Regards,
Florian Philipp