BestVM Hong Kong BGP China Mobile CMIN2 | CERA | Rich Lady Host | 70 CNY/Month | Evening Peak Speed Tests | International Connectivity | Review

I heard that CeraNetworks Hong Kong's China Mobile return route was upgraded from CMI to CMIN2, so I tested this model from Rich Lady Host.

Contents

1. Configuration
2. Node Quality
3. Mainland China three-network outbound route test
4. Mainland China three-network TCP Ping
5. Evening peak speed test
6. International connectivity
7. Summary

1. Configuration

Provider website: https://bestvm.cloud

🔗 Quick links

The upstream is CERA.

2. Node Quality

bash <(curl -sL https://run.NodeQuality.com)

💻Basic information

Basic System Information:
---------------------------------
Uptime     : 0 days, 1 hours, 18 minutes
Processor  : Intel(R) Xeon(R) CPU E5-2680 v4 @ 2.40GHz
CPU cores  : 1 @ 2399.996 MHz
AES-NI     : ✔ Enabled
VM-x/AMD-V : ✔ Enabled
RAM        : 967.9 MiB
Swap       : 533.0 MiB
Disk       : 11.0 GiB
Distro     : Debian GNU/Linux 12 (bookworm)
Kernel     : 6.12.57+deb13-cloud-amd64
VM Type    : STANDARD PC (I440FX + PIIX, 1996)
IPv4/IPv6  : ✔ Online / ❌ Offline

IPv4 Network Information:
---------------------------------
ISP        : Cnservers LLC
ASN        : AS40065 CNSERVERS LLC
Host       : Cloud Innovation Ltd
Location   : Hong Kong, Kowloon ()
Country    : Hong Kong

fio Disk Speed Tests (Mixed R/W 50/50) (Partition -):
---------------------------------
Block Size | 4k            (IOPS) | 64k           (IOPS)
  ------   | ---            ----  | ----           ---- 
Read       | 206.09 MB/s  (51.5k) | 1.77 GB/s    (27.6k)
Write      | 206.64 MB/s  (51.6k) | 1.78 GB/s    (27.8k)
Total      | 412.74 MB/s (103.1k) | 3.55 GB/s    (55.5k)
           |                      |                     
Block Size | 512k          (IOPS) | 1m            (IOPS)
  ------   | ---            ----  | ----           ---- 
Read       | 5.93 GB/s    (11.5k) | 6.11 GB/s     (5.9k)
Write      | 6.25 GB/s    (12.2k) | 6.52 GB/s     (6.3k)
Total      | 12.19 GB/s   (23.8k) | 12.63 GB/s   (12.3k)

Geekbench 5 Benchmark Test:
---------------------------------
Test            | Value                         
                |                               
Single Core     | 724                           
Multi Core      | 721                           
Full Test       | https://browser.geekbench.com/v5/cpu/23947599

 SysBench CPU Test (Fast Mode, 1-Pass @ 5sec)
---------------------------------
 1 Thread Test (Single Core) Score:          904 Scores
 SysBench Memory Test (Fast Mode, 1-Pass @ 5sec)
---------------------------------
 Single-thread Read Test:          19247.08 MB/s
 Single-thread Write Test:          14305.63 MB/s

🎬IP quality

Seychelles anycast IP. Geolocation and unlocking both look rather average.

🌐Network quality

📍Return route

Mobile return uses CMIN2, while Telecom and Unicom cross-network return uses CMI.

3. Mainland China three-network outbound tests (itdog.cn）

Telecom outbound uses 163, Unicom outbound seems to use 163 as well, and Mobile outbound uses CMI.

Location	China Telecom	China Unicom	China Mobile
Beijing
Shanghai
Guangzhou

4. mainland Chinathree networksTCP Ping (itdog.cn，2025-12-03 23:00）

During evening peak, Telecom and Unicom have fairly severe packet loss and jitter, while Mobile has no major issue.

China Telecom	China Unicom	China Mobile

5. Evening peak proxy speed tests (2025-12-03 22:30-23:30)

Telecom and Unicom cross-network CMI cannot really run. Mobile over CMIN2 is quite good, though the measured latency is a bit high.

*Click the test record to view the speed-test screenshot, including some popular models for comparison.

Telecom

[Telecom speed-test records]

Unicom

[Unicom speed-test records]

Mobile

[Mobile speed-test records]

6. International connectivity

Various Hong Kong landing nodes can pull it well and approach full speed. Japan and Singapore are also good. HKT seems to return via Europe, causing very high latency. Europe has high latency, low speed, and even traffic drops.

[Test records]

Hong Kong-Japan routes

🇭🇰 BestVM <-> 🇯🇵 DMIT	🇭🇰 BestVM <-> 🇯🇵 BAGE JPS	🇭🇰 BestVM <-> 🇯🇵 BAGE JP	🇭🇰 BestVM <-> 🇯🇵 RFCHOST
Outbound	Outbound	Outbound	Outbound
Return	Return	Return	Return

Hong Kong-Singapore routes

Pulling to Singapore is good across the board.

🇭🇰 BestVM <-> 🇸🇬 BAGE SGS	🇭🇰 BestVM <-> 🇸🇬 BAGE SG	🇭🇰 BestVM <-> 🇸🇬 RFCHOST
Outbound	Outbound	Outbound
Return	Return	Return

Hong Kong-Europe routes

Neither direction uses RETN, latency is high, and return speed cannot get going, so pulling to Europe is not good.

🇭🇰 BestVM <-> 🇩🇪 Netcup	🇭🇰 BestVM <-> 🇩🇪 BAGE	🇭🇰 BestVM <-> 🇬🇧 BAGE
Outbound	Outbound	Outbound
Return	Return	Return

7. Summary

Currently Mobile users are quite happy, while Telecom and Unicom cross-network access is basically unusable during evening peak. It is effectively single-network optimization. But since Mobile could switch from CMI to CMIN2, it could also switch back, so enjoy it while it lasts. If bought as a discounted plan, the value is good.

Internationally, pulling Hong Kong, Japan, and Singapore is fine; pulling Europe is not good.

8. About the tests

The machines tested in this article, including all machines used for iPerf3 speed tests, were purchased at my own expense. Results may be time-sensitive.
Kernel parameters of the tested machines (/etc/sysctl.conf) are as follows

fs.file-max = 6815744
net.ipv4.tcp_no_metrics_save=1
net.ipv4.tcp_ecn=0
net.ipv4.tcp_frto=0
net.ipv4.tcp_mtu_probing=0
net.ipv4.tcp_rfc1337=0
net.ipv4.tcp_sack=1
net.ipv4.tcp_fack=1
net.ipv4.tcp_window_scaling=1
net.ipv4.tcp_adv_win_scale=1
net.ipv4.tcp_moderate_rcvbuf=1
net.core.rmem_max=33554432
net.core.wmem_max=33554432
net.ipv4.tcp_rmem=4096 87380 33554432
net.ipv4.tcp_wmem=4096 16384 33554432
net.ipv4.udp_rmem_min=8192
net.ipv4.udp_wmem_min=8192
net.ipv4.ip_forward=1
net.ipv4.conf.all.route_localnet=1
net.ipv4.conf.all.forwarding=1
net.ipv4.conf.default.forwarding=1
net.core.default_qdisc=fq
net.ipv4.tcp_congestion_control=bbr
net.ipv6.conf.all.forwarding=1
net.ipv6.conf.default.forwarding=1

9. Acknowledgements

Thanks to “Impart Speed Test“(@Kyoma ) for providing mainland Chinapublic-interest speed-test service