V.PS EPYC Explorer Singapore Three-Network CN2 GIA | Secretary | Evening Peak Speed Tests | International Connectivity | Review

Testing a V.PS SG machine I have had for a while; I kept putting off writing the article, and it can be compared with the new product next door for comparison

Contents

1. Configuration
2. Node Quality
3. Mainland Three-Network Outbound Route Tests
4. Mainland Three-Network TCP Ping
5. Evening Peak Speed Tests
6. International Connectivity
7. Summary

1. Configuration

🔗 Quick Links

2. Node Quality

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

I originally planned to write a comparison article, so I disabled v6; after thinking about it, I decided to publish the two articles separately.

💻 Basic Information

Performance is very good.

Basic System Information:
---------------------------------
Uptime     : 0 days, 1 hours, 9 minutes
Processor  : AMD EPYC 7J13 64-Core Processor
CPU cores  : 2 @ 2445.414 MHz
AES-NI     : ✔ Enabled
VM-x/AMD-V : ✔ Enabled
RAM        : 1.9 GiB
Swap       : 0.0 KiB
Disk       : 30.0 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        : xTom Pty Ltd
ASN        : AS8888 xTom Pty Ltd
Location   : Singapore, North West (03)
Country    : Singapore

fio Disk Speed Tests (Mixed R/W 50/50) (Partition -):
---------------------------------
Block Size | 4k            (IOPS) | 64k           (IOPS)
  ------   | ---            ----  | ----           ---- 
Read       | 471.17 MB/s (117.7k) | 4.76 GB/s    (74.4k)
Write      | 472.42 MB/s (118.1k) | 4.78 GB/s    (74.8k)
Total      | 943.60 MB/s (235.8k) | 9.55 GB/s   (149.2k)
           |                      |                     
Block Size | 512k          (IOPS) | 1m            (IOPS)
  ------   | ---            ----  | ----           ---- 
Read       | 8.20 GB/s    (16.0k) | 8.52 GB/s     (8.3k)
Write      | 8.64 GB/s    (16.8k) | 9.09 GB/s     (8.8k)
Total      | 16.84 GB/s   (32.8k) | 17.62 GB/s   (17.2k)

Geekbench 5 Benchmark Test:
---------------------------------
Test            | Value                         
                |                               
Single Core     | 1188                          
Multi Core      | 2308                          
Full Test       | https://browser.geekbench.com/v5/cpu/23953774

 SysBench CPU Test (Fast Mode, 1-Pass @ 5sec)
---------------------------------
 1 Thread Test (Single Core) Score:          3635 Scores
 2 Thread Test (Multi Core) Score:          7240 Scores
 SysBench Memory Test (Fast Mode, 1-Pass @ 5sec)
---------------------------------
 Single-Thread Read Test:          42657.51 MB/s
 Single-Thread Write Test:          25109.44 MB/s

🎬IP Quality

🌐 Network Quality

📍Return Routes

All three networks are forced onto CN2 GIA return routes.

3. Mainland Three-Network Outbound Route Tests (itdog.cn）

China Telecom outbound uses CN2, China Unicom outbound uses 9929, and China Mobile outbound uses CMI.

Location	China Telecom	China Unicom	China Mobile
Beijing
Shanghai
Guangzhou

4. Mainland Three-Network Outbound TCP Ping (itdog.cn, 2025-12-06 20:00）

During the evening peak, China Telecom and China Unicom are both very stable; China Mobile has somewhat high jitter, while packet loss is acceptable.

China Telecom	China Unicom	China Mobile

5. Evening Peak Proxy Speed Tests(2025-12-06 22:00)

China Telecom speeds are very good, even a bit higher than the new product next door. China Unicom cross-network latency is a little higher, but speeds still run.
China Mobile cross-network latency is relatively high, but there is still speed; in testing it was not completely QoS-killed.

Telecom

[Telecom Speed Test Record]

Unicom

[Unicom Speed Test Record]

Mobile

[Mobile Speed Test Record]

6. International Connectivity

No real issues. Local 1G ports can be saturated both ways, with latency a few tenths of a millisecond higher than the CTC line.

[Full Test Record]

7. Summary

244 EUR per year is expensive, but it is still a reasonably cost-effective premium Singapore machine for China Telecom. If it were 378/515 EUR per year, the value for individual users would be poor. China Telecom CN2 both ways is good, China Unicom cross-network performance is excellent, China Mobile cross-network is usable, but if you only use China Mobile the price is not worth it. Local connectivity has no issues.

If you need both Hong Kong and Singapore, you can actually buy a Hong Kong CN2 / three-network optimized / Hong Kong outbound dedicated-line machine, then connect it to a Singapore landing node with good Hong Kong-Singapore connectivity. That gives you both speed and value, and costs much less than keeping optimized machines in both Hong Kong and Singapore.

8. About the Tests

The machines used in this test, including all machines used for iPerf3 speed tests, were purchased at my own expense; results may be time-sensitive.
Kernel parameters of the test 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 the mainland Chinapublic-interest speed test service