详情：Vultr：$2.5/月/512MB内存/20GB SSD空间/500GB流量/KVM/日本/洛杉矶
这样的价格，可以买到日本KVM VPS，而且性能不错，网络也不错，相当值得留上1个。
1、系统信息及带宽测试
wget -qO- bench.sh | bash
----------------------------------------------------------------------
CPU model : Virtual CPU a7769a6388d5
Number of cores : 1
CPU frequency : 2394.454 MHz
Total size of Disk : 20.0 GB (0.5 GB Used)
Total amount of Mem : 496 MB (60 MB Used)
Total amount of Swap : 0 MB (0 MB Used)
System uptime : 0 days, 0 hour 2 min
Load average : 0.02, 0.02, 0.00
OS : Debian GNU/Linux 7
Arch : x86_64 (64 Bit)
Kernel : 3.2.0-4-amd64
----------------------------------------------------------------------
I/O speed(1st run) : 325 MB/s
I/O speed(2nd run) : 358 MB/s
I/O speed(3rd run) : 354 MB/s
Average I/O speed : 345.7 MB/s
----------------------------------------------------------------------
Node Name IPv4 address Download Speed
CacheFly 205.234.175.175 72.4MB/s
Linode, Tokyo, JP 106.187.96.148 68.1MB/s
Linode, Singapore, SG 139.162.23.4 2.42MB/s
Linode, London, UK 176.58.107.39 998KB/s
Linode, Frankfurt, DE 139.162.130.8 702KB/s
Linode, Fremont, CA 50.116.14.9 1.77MB/s
Softlayer, Dallas, TX 173.192.68.18 1.64MB/s
Softlayer, Seattle, WA 67.228.112.250 2.15MB/s
Softlayer, Frankfurt, DE 159.122.69.4 874KB/s
Softlayer, Singapore, SG 119.81.28.170 3.10MB/s
Softlayer, HongKong, CN 119.81.130.170 4.93MB/s
2、上传/下载带宽测试
Hosted by Foxcore-LS (Sodegaura) [26.76 km]: 6.156 ms
Testing download speed..........................................
Download: 476.25 Mbit/s
Testing upload speed.............................................
Upload: 232.67 Mbit/s
3、国内访问速度
4、测试硬盘 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, 4.01773 s, 66.8 MB/s
5、UnixBench跑分
Benchmark Run: Thu Mar 02 2017 12:41:06 - 13:08:17
1 CPU in system; running 1 parallel copy of tests
Dhrystone 2 using register variables 26935059.1 lps (10.0 s, 7 samples)
Double-Precision Whetstone 3489.8 MWIPS (5.6 s, 7 samples)
Execl Throughput 4943.8 lps (30.0 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 1004572.9 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 282104.2 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 2034208.4 KBps (30.0 s, 2 samples)
Pipe Throughput 1827282.0 lps (10.0 s, 7 samples)
Pipe-based Context Switching 336548.6 lps (10.0 s, 7 samples)
Process Creation 15950.4 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 4989.4 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 703.5 lpm (60.0 s, 2 samples)
System Call Overhead 3576846.6 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 26935059.1 2308.1
Double-Precision Whetstone 55.0 3489.8 634.5
Execl Throughput 43.0 4943.8 1149.7
File Copy 1024 bufsize 2000 maxblocks 3960.0 1004572.9 2536.8
File Copy 256 bufsize 500 maxblocks 1655.0 282104.2 1704.6
File Copy 4096 bufsize 8000 maxblocks 5800.0 2034208.4 3507.3
Pipe Throughput 12440.0 1827282.0 1468.9
Pipe-based Context Switching 4000.0 336548.6 841.4
Process Creation 126.0 15950.4 1265.9
Shell Scripts (1 concurrent) 42.4 4989.4 1176.8
Shell Scripts (8 concurrent) 6.0 703.5 1172.5
System Call Overhead 15000.0 3576846.6 2384.6
========
System Benchmarks Index Score 1501.6
6、Youtube测试 晚上9:25
下面是早上八点的数据：
7、丢包测试 未安装锐速、BBR
Ping from 10.0.0.13 to 45.32.xxx.xxx
==============================================================================
03/02 20:26:24.403 Ping to 45.32.xxx.xxx with 32 bytes of data and 32 of TTL:
03/02 20:26:24.589 PingMin #1 Reply 32 bytes from 45.32.xxx.xxx: time=138ms TTL=51, ave=138.00ms
03/02 20:26:25.546 PingMax #2 Reply 32 bytes from 45.32.xxx.xxx: time=141ms TTL=51, ave=139.50ms
03/02 20:26:28.540 PingMax #5 Reply 32 bytes from 45.32.xxx.xxx: time=142ms TTL=51, ave=140.00ms
03/02 20:26:31.062 超时 #7 *****(32 bytes) 请求超时。
03/02 20:26:32.064 超时 #8 *****(32 bytes) 请求超时。
03/02 20:26:33.073 超时 #9 *****(32 bytes) 请求超时。
03/02 20:26:35.056 超时 #11 *****(32 bytes) 请求超时。
03/02 20:26:36.057 超时 #12 *****(32 bytes) 请求超时。
03/02 20:26:40.057 超时 #16 *****(32 bytes) 请求超时。
03/02 20:26:41.058 超时 #17 *****(32 bytes) 请求超时。
03/02 20:26:42.527 PingMin #19 Reply 32 bytes from 45.32.xxx.xxx: time=127ms TTL=51, ave=138.42ms
03/02 20:26:43.531 === 20 有效发送, 13 接收, 35.00% 丢失, 138.08ms 平均值 ===
--- 结果 & 统计信息 ------------------------------------------------------
开始时间: 2017/03/02 20:26:24
经过时间: 000:00:19
结束时间: 2017/03/02 20:26:43
----------------
20 总计发送
0 无效接收 (除了超时的其它错误)
----------------
20 有效发送
13 有效接收
7 timed out (35.00% 丢失)
Ping 最小值 127ms, 最大值 142ms, 平均值 138.08ms
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