This is magnituds faster than before; some results:
$ for f in 1 2 3; do time xbps-rindex -r /var/cache/xbps/ &>/dev/null; done
real 0m0.624s
user 0m2.163s
sys 0m0.032s
real 0m0.590s
user 0m2.159s
sys 0m0.023s
real 0m0.584s
user 0m2.144s
sys 0m0.039s
$ for f in 1 2 3; do time LD_PRELOAD=$PWD/lib/libxbps.so.2.0.0 ./bin/xbps-rindex/xbps-rindex -r /var/cache/xbps &>/dev/null; done
real 0m0.037s
user 0m0.030s
sys 0m0.010s
real 0m0.036s
user 0m0.032s
sys 0m0.007s
real 0m0.037s
user 0m0.035s
sys 0m0.006s
$
d7d749312d