选购VPS时的网络指标，通常很多新手只在意延迟（latency）。而在实际使用中，丢包率比延迟影响要大得多。而丢包率无法在短时间内得出一个有参考价值的数据。
一些VPS推荐网站通常只给出他们在某一时刻使用ping工具测得的延迟这个数据有一定参考价值，但意义不大。
为此，我使用SmokePing工具，测试了一个月（2017年6-7月）Vultr和Linode的所有机房。
其实我还测了AWS位于国外的机房，但是发现AWS线路对于国内而言实在太不友好，各机房丢包率都很高，热门机房惨不忍睹，所以这里不再赘述。
测试机房在阿里云上海机房，测试结果对于华东地区（特别是电信用户）用户有一定参考价值，其他地区/ISP用户请自行判断。
抖动一栏为延迟的标准差，越小表示越稳定。
按丢包排序：
| Facility | Hostname | 延迟/ms | 丢包/% | 抖动/ms |
| London | speedtest.london.linode.com | 240 | 0.28 | 25.3 |
| Frankfurt | speedtest.frankfurt.linode.com | 268 | 0.69 | 12.4 |
| Amsterdam, NL | ams-nl-ping.vultr.com | 244 | 0.81 | 9.1 |
| London, UK | lon-gb-ping.vultr.com | 252 | 1.14 | 9.4 |
| Dallas, Texas | tx-us-ping.vultr.com | 230 | 1.65 | 16.9 |
| Paris, France | par-fr-ping.vultr.com | 195 | 1.76 | 13.1 |
| Tokyo 2, Japan | speedtest.tokyo2.linode.com | 80.1 | 2.09 | 14.7 |
| US East | speedtest.newark.linode.com | 309 | 2.39 | 12.8 |
| Frankfurt, DE | fra-de-ping.vultr.com | 214 | 2.4 | 13.6 |
| US South | speedtest.atlanta.linode.com | 306 | 2.49 | 16.4 |
| US Central | speedtest.dallas.linode.com | 192 | 2.54 | 10.4 |
| Seattle, Washington | wa-us-ping.vultr.com | 194 | 2.56 | 12.5 |
| Silicon Valley, California | sjo-ca-us-ping.vultr.com | 211 | 2.7 | 11.2 |
| Tokyo, Japan | hnd-jp-ping.vultr.com | 77.4 | 2.88 | 15.8 |
| Chicago, Illinois | il-us-ping.vultr.com | 232 | 3.15 | 12.5 |
| New York (NJ) | nj-us-ping.vultr.com | 259 | 3.22 | 10.3 |
| Los Angeles, California | lax-ca-us-ping.vultr.com | 198 | 3.29 | 12.4 |
| Atlanta, Georgia | ga-us-ping.vultr.com | 269 | 3.33 | 39.4 |
| Singapore | sgp-ping.vultr.com | 182 | 3.4 | 16.8 |
| Sydney, Australia | syd-au-ping.vultr.com | 230.2 | 3.92 | 15.9 |
| Singapore | speedtest.singapore.linode.com | 217 | 4.08 | 26.9 |
| US West | speedtest.fremont.linode.com | 220 | 4.11 | 8.8 |
| Miami, Florida | fl-us-ping.vultr.com | 304 | 6.88 | 22.5 |
按延迟排序：
| Facility | Hostname | 延迟/ms | 丢包/% | 抖动/ms |
| Tokyo, Japan | hnd-jp-ping.vultr.com | 77.4 | 2.88 | 15.8 |
| Tokyo 2, Japan | speedtest.tokyo2.linode.com | 80.1 | 2.09 | 14.7 |
| Singapore | sgp-ping.vultr.com | 182 | 3.4 | 16.8 |
| US Central | speedtest.dallas.linode.com | 192 | 2.54 | 10.4 |
| Seattle, Washington | wa-us-ping.vultr.com | 194 | 2.56 | 12.5 |
| Paris, France | par-fr-ping.vultr.com | 195 | 1.76 | 13.1 |
| Los Angeles, California | lax-ca-us-ping.vultr.com | 198 | 3.29 | 12.4 |
| Silicon Valley, California | sjo-ca-us-ping.vultr.com | 211 | 2.7 | 11.2 |
| Frankfurt, DE | fra-de-ping.vultr.com | 214 | 2.4 | 13.6 |
| Singapore | speedtest.singapore.linode.com | 217 | 4.08 | 26.9 |
| US West | speedtest.fremont.linode.com | 220 | 4.11 | 8.8 |
| Dallas, Texas | tx-us-ping.vultr.com | 230 | 1.65 | 16.9 |
| Sydney, Australia | syd-au-ping.vultr.com | 230.2 | 3.92 | 15.9 |
| Chicago, Illinois | il-us-ping.vultr.com | 232 | 3.15 | 12.5 |
| London | speedtest.london.linode.com | 240 | 0.28 | 25.3 |
| Amsterdam, NL | ams-nl-ping.vultr.com | 244 | 0.81 | 9.1 |
| London, UK | lon-gb-ping.vultr.com | 252 | 1.14 | 9.4 |
| New York (NJ) | nj-us-ping.vultr.com | 259 | 3.22 | 10.3 |
| Frankfurt | speedtest.frankfurt.linode.com | 268 | 0.69 | 12.4 |
| Atlanta, Georgia | ga-us-ping.vultr.com | 269 | 3.33 | 39.4 |
| Miami, Florida | fl-us-ping.vultr.com | 304 | 6.88 | 22.5 |
| US South | speedtest.atlanta.linode.com | 306 | 2.49 | 16.4 |
| US East | speedtest.newark.linode.com | 309 | 2.39 | 12.8 |