详情：AlphaRacks：$9.95/年/512MB/15GB空间/6TB流量/OpenVZ/洛杉矶
**从评测信息看，I/O很不错，UnixBench跑分也高，流量相当充足，而且是1Gbps端口，丢包极少，属于相当不错的。
值得购买！！！**
系统信息及带宽测试：
System Info
-----------
Processor : Intel(R) Xeon(R) CPU E5620 @ 2.40GHz
CPU Cores : 4
Frequency : 2400.088 MHz
Memory : 2048 MB
Swap : 2048 MB
Uptime : 46 min,
OS : CentOS release 6.6 (Final)
Arch : x86_64 (64 Bit)
Kernel : 2.6.32-042stab117.14
Hostname : zhujiwiki
Speedtest (IPv4 only)
---------------------
Your public IPv4 is 155.254.xxx.xxx
Location Provider Speed
CDN Cachefly 17.0MB/s
Atlanta, GA, US Coloat 4.35MB/s
Dallas, TX, US Softlayer 9.73MB/s
Seattle, WA, US Softlayer 9.83MB/s
San Jose, CA, US Softlayer 11.4MB/s
Washington, DC, US Softlayer 7.54MB/s
Tokyo, Japan Linode 5.86MB/s
Singapore Softlayer 2.87MB/s
Rotterdam, Netherlands id3.net 2.77MB/s
Haarlem, Netherlands Leaseweb 9.90MB/s
Disk Speed
----------
I/O (1st run) : 154 MB/s
I/O (2nd run) : 101 MB/s
I/O (3rd run) : 119 MB/s
Average I/O : 124.667 MB/s
UnixBench跑分：
Benchmark Run: Wed Oct 26 2016 21:26:10 - 21:54:29
4 CPUs in system; running 1 parallel copy of tests
Dhrystone 2 using register variables 21023244.2 lps (10.0 s, 7 samples)
Double-Precision Whetstone 2767.1 MWIPS (9.8 s, 7 samples)
Execl Throughput 2442.3 lps (29.9 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 392193.1 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 107283.7 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 1002805.3 KBps (30.0 s, 2 samples)
Pipe Throughput 943869.0 lps (10.0 s, 7 samples)
Pipe-based Context Switching 102398.4 lps (10.0 s, 7 samples)
Process Creation 5530.4 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 3242.1 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 979.7 lpm (60.1 s, 2 samples)
System Call Overhead 1362820.6 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 21023244.2 1801.5
Double-Precision Whetstone 55.0 2767.1 503.1
Execl Throughput 43.0 2442.3 568.0
File Copy 1024 bufsize 2000 maxblocks 3960.0 392193.1 990.4
File Copy 256 bufsize 500 maxblocks 1655.0 107283.7 648.2
File Copy 4096 bufsize 8000 maxblocks 5800.0 1002805.3 1729.0
Pipe Throughput 12440.0 943869.0 758.7
Pipe-based Context Switching 4000.0 102398.4 256.0
Process Creation 126.0 5530.4 438.9
Shell Scripts (1 concurrent) 42.4 3242.1 764.6
Shell Scripts (8 concurrent) 6.0 979.7 1632.8
System Call Overhead 15000.0 1362820.6 908.5
========
System Benchmarks Index Score 785.6
------------------------------------------------------------------------
Benchmark Run: Wed Oct 26 2016 21:54:29 - 22:23:13
4 CPUs in system; running 4 parallel copies of tests
Dhrystone 2 using register variables 64390692.0 lps (10.0 s, 7 samples)
Double-Precision Whetstone 10901.8 MWIPS (9.7 s, 7 samples)
Execl Throughput 5519.2 lps (29.9 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 210974.8 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 109774.5 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 1133735.7 KBps (30.0 s, 2 samples)
Pipe Throughput 3208545.8 lps (10.0 s, 7 samples)
Pipe-based Context Switching 459173.5 lps (10.0 s, 7 samples)
Process Creation 18587.6 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 9979.3 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 1311.4 lpm (60.1 s, 2 samples)
System Call Overhead 3533070.0 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 64390692.0 5517.6
Double-Precision Whetstone 55.0 10901.8 1982.2
Execl Throughput 43.0 5519.2 1283.5
File Copy 1024 bufsize 2000 maxblocks 3960.0 210974.8 532.8
File Copy 256 bufsize 500 maxblocks 1655.0 109774.5 663.3
File Copy 4096 bufsize 8000 maxblocks 5800.0 1133735.7 1954.7
Pipe Throughput 12440.0 3208545.8 2579.2
Pipe-based Context Switching 4000.0 459173.5 1147.9
Process Creation 126.0 18587.6 1475.2
Shell Scripts (1 concurrent) 42.4 9979.3 2353.6
Shell Scripts (8 concurrent) 6.0 1311.4 2185.6
System Call Overhead 15000.0 3533070.0 2355.4
========
System Benchmarks Index Score 1682.1
服务器 I/O 性能：
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, 3.40685 s, 78.8 MB/s
上传/下载带宽测试：
Hosted by WebNX (Los Angeles, CA) [21.15 km]: 7.578 ms
Testing download speed................................................................................
Download: 38.63 Mbit/s
Testing upload speed....................................................................................................
Upload: 24.63 Mbit/s
国内速度：
丢包测试：
Ping from 192.168.1.186 to 155.254.xxx.xxx
==============================================================================
10/27 09:23:23.485 Ping to 155.254.xxx.xxx with 32 bytes of data and 32 of TTL:
10/27 09:23:23.785 PingMin #1 Reply 32 bytes from 155.254.xxx.xxx: time=221ms TTL=51, ave=221.00ms
10/27 09:23:24.716 PingMin #2 Reply 32 bytes from 155.254.xxx.xxx: time=212ms TTL=51, ave=216.50ms
10/27 09:23:25.718 PingMax #3 Reply 32 bytes from 155.254.xxx.xxx: time=227ms TTL=51, ave=220.00ms
10/27 09:23:27.765 PingMax #5 Reply 32 bytes from 155.254.xxx.xxx: time=274ms TTL=51, ave=232.00ms
10/27 09:23:30.779 PingMax #8 Reply 32 bytes from 155.254.xxx.xxx: time=277ms TTL=51, ave=241.00ms
10/27 09:23:33.816 PingMax #11 Reply 32 bytes from 155.254.xxx.xxx: time=318ms TTL=51, ave=248.55ms
10/27 09:23:42.817 === 20 有效发送, 20 接收, 0.00% 丢失, 260.95ms 平均值 ===
--- 结果 & 统计信息 ------------------------------------------------------
开始时间: 2016/10/27 09:23:23
经过时间: 000:00:19
结束时间: 2016/10/27 09:23:42
----------------
20 总计发送
0 无效接收 (除了超时的其它错误)
----------------
20 有效发送
20 有效接收
0 timed out (0.00% 丢失)
Ping 最小值 212ms, 最大值 318ms, 平均值 260.95ms
路由跟踪：
1 192.168.1.254 5 ms 5 ms 7 ms 局域网 *
2 * * * *
3 113.200.71.153 11 ms 13 ms 14 ms 中国 陕西 西安 联通 AS4837
4 123.139.1.173 71 ms 75 ms 81 ms 中国 陕西 西安 联通 AS4837
5 221.11.0.101 71 ms 105 ms 106 ms 中国 陕西 西安 联通 AS4837
6 219.158.112.37 61 ms 61 ms 63 ms 中国 北京 联通 AS4837
7 219.158.112.146 75 ms 88 ms 101 ms 中国 北京 联通 AS4837
8 219.158.98.82 88 ms 100 ms 102 ms 中国 北京 联通 AS4837
9 219.158.102.154 294 ms 325 ms 356 ms 美国 加利福尼亚州 洛杉矶 联通 AS4837
10 213.248.82.205 268 ms 277 ms 335 ms 美国 加利福尼亚州 洛杉矶 AS1299 las-bb1-link.telia.net
11 213.248.71.106 210 ms 216 ms 408 ms 美国 加利福尼亚州 洛杉矶 AS1299 dbtransit-ic-306197-las-b3.c.telia.net
12 96.44.180.6 221 ms 238 ms 284 ms 美国 加利福尼亚州 洛杉矶 quadranet.com AS8100 colo-lax9.as8100.net
13 204.44.93.2 251 ms 281 ms 292 ms 美国 加利福尼亚州 洛杉矶 quadranet.com AS8100 204.44.93.2.static.quadranet.com
14 155.254.35.57 241 ms 303 ms 317 ms 美国 加利福尼亚州 洛杉矶 alpharacks.com syn.ltd.uk AS8100 vive.ayearpart.com
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所有主机信息仅是为及时分享并收录，不做推荐！