一键nench.sh检测服务器，带有IPV6测速

新的一键bench.sh: nench.sh 带有IPV6测速

(curl -s wget.racing/nench.sh | bash; curl -s wget.racing/nench.sh | bash) 2>&1 | tee nench.log

(wget -qO- wget.racing/nench.sh | bash; wget -qO- wget.racing/nench.sh | bash) 2>&1 | tee nench.log

结果显示：

-------------------------------------------------
 nench.sh v2017.05.08 -- https://git.io/nench.sh
 benchmark timestamp:    2017-05-08 20:36:54 UTC
-------------------------------------------------

Processor:    Virtual CPU a7769a6388d5
CPU cores:    1
Frequency:    2394.454 MHz
RAM:          494M
Swap:         871M
Kernel:       Linux 3.16.0-4-amd64 x86_64

Disks:
vda  20G  HDD

CPU: SHA256-hashing 500 MB
    4.183 seconds
CPU: bzip2-compressing 500 MB
    6.830 seconds
CPU: AES-encrypting 500 MB
    1.636 seconds

ioping: seek rate
    min/avg/max/mdev = 148.6 us / 280.9 us / 9.22 ms / 234.7 us
ioping: sequential speed
    generated 2.15 k requests in 5.00 s, 536.2 MiB, 428 iops, 107.2 MiB/s

dd test
    1st run:    339.51 MiB/s
    2nd run:    345.23 MiB/s
    3rd run:    342.37 MiB/s
    average:    342.37 MiB/s

IPv4 speedtests
    your IPv4:    108.61.179.xxxx

    Cachefly CDN:         205.34 MiB/s
    Leaseweb (NL):        140.55 MiB/s
    Softlayer DAL (US):   0.08 MiB/s
    Online.net (FR):      0.17 MiB/s
    OVH BHS (CA):         11.13 MiB/s

IPv6 speedtests
    your IPv6:    2001:19f0:6c01:xxxx

    Leaseweb (NL):        101.06 MiB/s
    Softlayer DAL (US):   2.89 MiB/s
    Online.net (FR):      0.18 MiB/s
    OVH BHS (CA):         9.84 MiB/s
-------------------------------------------------