Added output

README.md

@@ -5,7 +5,7 @@ Current version always available at https://git.snel.com/snelcom/snench
 
 - Based on nench (https://github.com/n-st/nench)
 - Includes CPU and ioping measurements
-- Successfully tested on Arch Linux, Debian, FreeBSD, and Ubuntu
+- Successfully tested on Debian, Ubuntu, CentOS, Arch Linux and FreeBSD
 
 Usage example
 -------------
@@ -20,4 +20,54 @@ Example output
 Output from a VPS hosted with Snel.com in Rotterdam:
 
 ```
+-------------------------------------------------
+ snench.sh v2021.04.15 -- https://git.snel.com/snelcom/snench
+ benchmark timestamp:     2021-04-15 13:58:50 UTC
+-------------------------------------------------
+
+Processor:    Intel(R) Xeon(R) Gold 5222 CPU @ 3.80GHz
+CPU cores:    4
+Frequency:    3791.092 MHz
+RAM:          7.8Gi
+Swap:         5.0Gi
+Kernel:       Linux 4.19.0-16-amd64 x86_64
+
+Disks:
+sda    100G  SSD
+
+CPU: SHA256-hashing 500 MB
+    2.204 seconds
+CPU: bzip2-compressing 500 MB
+    3.835 seconds
+CPU: AES-encrypting 500 MB
+    0.726 seconds
+
+ioping: seek rate
+    min/avg/max/mdev = 26.3 us / 41.2 us / 27.5 ms / 97.1 us
+ioping: sequential read speed
+    generated 49.4 k requests in 5.00 s, 12.1 GiB, 9.88 k iops, 2.41 GiB/s
+ioping: sequential write speed
+    generated 25.0 k requests in 5.00 s, 6.10 GiB, 5.00 k iops, 1.22 GiB/s
+ioping: random 4k read speed
+    generated 116.1 k requests in 5.00 s, 453.6 MiB, 23.2 k iops, 90.7 MiB/s
+ioping: random 4k write speed
+    generated 63.7 k requests in 5.00 s, 249.0 MiB, 12.7 k iops, 49.8 MiB/s
+
+IPv4 speedtests
+    your IPv4:    193.33.60.xxxx
+
+    Cachefly CDN:         193.05 MiB/s
+    Leaseweb (NL):        308.63 MiB/s
+    Softlayer DAL (US):   10.21 MiB/s
+    Online.net (FR):      218.73 MiB/s
+    OVH BHS (CA):         26.50 MiB/s
+
+IPv6 speedtests
+    your IPv6:    2a00:7b80:3043:xxxx
+
+    Leaseweb (NL):        289.87 MiB/s
+    Softlayer DAL (US):   0.00 MiB/s
+    Online.net (FR):      0.00 MiB/s
+    OVH BHS (CA):         0.00 MiB/s
+-------------------------------------------------
 ```