详情：Melbicom：€2.61/月/2GB内存/20GB SSD空间/不限流量/KVM/莫斯科
从测试看，联通为直连，速度不错，电信绕韩国，算不错了，缺点是I/O偏低。结合价格、配置、性能和网络看，算是性价比很高了。
1、系统信息、带宽、I/O测试
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CPU model : QEMU Virtual CPU version 2.5+
Number of cores : 1
CPU frequency : 2933.436 MHz
Total size of Disk : 20.2 GB (0.9 GB Used)
Total amount of Mem : 1877 MB (207 MB Used)
Total amount of Swap : 0 MB (0 MB Used)
System uptime : 0 days, 0 hour 6 min Load average : 0.00, 0.00, 0.00 OS : CentOS 6.9 Arch : x86_64 (64 Bit) Kernel : 2.6.32-696.3.1.el6.x86_64 ---------------------------------------------------------------------- I/O speed(1st run) : 352 MB/s
I/O speed(2nd run) : 353 MB/s
I/O speed(3rd run) : 338 MB/s
Average I/O speed : 347.7 MB/s
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Node Name IPv4 address Download Speed
CacheFly 205.234.175.175 33.1MB/s
Linode, Tokyo, JP 106.187.96.148 4.28MB/s
Linode, Singapore, SG 139.162.23.4 1.20MB/s
Linode, London, UK 176.58.107.39 3.67MB/s
Linode, Frankfurt, DE 139.162.130.8 4.41MB/s
Linode, Fremont, CA 50.116.14.9 956KB/s
Softlayer, Dallas, TX 173.192.68.18 6.36MB/s
Softlayer, Seattle, WA 67.228.112.250 3.66MB/s
Softlayer, Frankfurt, DE 159.122.69.4 5.63MB/s
Softlayer, Singapore, SG 119.81.28.170 3.58MB/s
Softlayer, HongKong, CN 119.81.130.170 1.54MB/s
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2、上传/下载带宽测试
Selecting best server based on ping...
Hosted by SoftLayer Technologies, Inc. (Amsterdam) [1.75 km]: 56.263 ms
Testing download speed................................................................................
Download: 225.53 Mbit/s
Testing upload speed................................................................................................
Upload: 203.53 Mbit/s
3、国内访问速度
4、硬盘 I/O 性能测试
dd if=/dev/zero of=test bs=64k count=4k oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 60.3557 s, 4.4 MB/s
5、性能测试之UnixBench跑分
Benchmark Run: Mon Jun 05 2017 05:42:26 - 06:10:35
1 CPU in system; running 1 parallel copy of tests
Dhrystone 2 using register variables 30044154.6 lps (10.0 s, 7 samples)
Double-Precision Whetstone 3524.9 MWIPS (9.8 s, 7 samples)
Execl Throughput 4536.2 lps (30.0 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 891268.3 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 239342.2 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 1904723.2 KBps (30.0 s, 2 samples)
Pipe Throughput 1804034.3 lps (10.0 s, 7 samples)
Pipe-based Context Switching 335638.8 lps (10.0 s, 7 samples)
Process Creation 14790.7 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 5813.0 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 780.2 lpm (60.0 s, 2 samples)
System Call Overhead 2178562.9 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 30044154.6 2574.5
Double-Precision Whetstone 55.0 3524.9 640.9
Execl Throughput 43.0 4536.2 1054.9
File Copy 1024 bufsize 2000 maxblocks 3960.0 891268.3 2250.7
File Copy 256 bufsize 500 maxblocks 1655.0 239342.2 1446.2
File Copy 4096 bufsize 8000 maxblocks 5800.0 1904723.2 3284.0
Pipe Throughput 12440.0 1804034.3 1450.2
Pipe-based Context Switching 4000.0 335638.8 839.1
Process Creation 126.0 14790.7 1173.9
Shell Scripts (1 concurrent) 42.4 5813.0 1371.0
Shell Scripts (8 concurrent) 6.0 780.2 1300.4
System Call Overhead 15000.0 2178562.9 1452.4
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System Benchmarks Index Score 1422.8
6、路由追踪（广东电信）
路由追踪（北京联通）
7、Youtube速度测试
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