$ wget -np -r -nd -A 7z http://dumps.wikimedia.your.org/enwiki/20170101/
$ find -name "*pages-meta-history*7z" -print0 | /usr/bin/time -v xargs -n1 -P16 -0 -I_ 7z e -so _ > /dev/null

Command exited with non-zero status 123
        Command being timed: "xargs -n1 -P16 -0 -I_ 7z e -so _"
        User time (seconds): 91219.61
        System time (seconds): 1278.98
        Percent of CPU this job got: 1420%
        Elapsed (wall clock) time (h:mm:ss or m:ss): 1:48:31
        Average shared text size (kbytes): 0
        Average unshared data size (kbytes): 0
        Average stack size (kbytes): 0
        Average total size (kbytes): 0
        Maximum resident set size (kbytes): 4512
        Average resident set size (kbytes): 0
        Major (requiring I/O) page faults: 29
        Minor (reclaiming a frame) page faults: 648948
        Voluntary context switches: 8321
        Involuntary context switches: 13001456
        Swaps: 0
        File system inputs: 446354904
        File system outputs: 48
        Socket messages sent: 0
        Socket messages received: 0
        Signals delivered: 0
        Page size (bytes): 4096
        Exit status: 123

$ lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                24
On-line CPU(s) list:   0-23
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 44
Model name:            Intel(R) Xeon(R) CPU           X5675  @ 3.07GHz
Stepping:              2
CPU MHz:               3066.753
BogoMIPS:              6133.57
Virtualization:        VT-x