总结一下 bench.sh 的特点：
1、显示各种系统信息；
2、取自 Speedtest 世界多处的数据中心的测试点，网络测试比较全面；
3、IO 测试（顺序写入 1GB 数据）三次，并显示其平均值。
使用方法：
wget -qO- bench.sh | bash
curl -Lso- bench.sh | bash
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下方为最近新购的一台VPS 测试结果：
root@0828:~# wget -qO- bench.sh | bash
-------------------- A Bench.sh Script By Teddysun -------------------
Version : v2023-10-15
Usage : wget -qO- bench.sh | bash
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CPU Model : Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz
CPU Cores : 3 @ 2699.998 MHz
CPU Cache : 30720 KB
AES-NI : ✓ Enabled
VM-x/AMD-V : ✗ Disabled
Total Disk : 275.5 GB (1.3 GB Used)
Total Mem : 1.9 GB (234.4 MB Used)
Total Swap : 1023.0 MB (0 Used)
System uptime : 0 days, 0 hour 47 min
Load average : 0.01, 0.02, 0.00
OS : Debian GNU/Linux 12
Arch : x86_64 (64 Bit)
Kernel : 6.1.0-9-amd64
TCP CC : cubic
Virtualization : KVM
IPv4/IPv6 : ✓ Online / ✓ Online
Organization : AS35916 MULTACOM CORPORATION
Location : Los Angeles / US
Region : California
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I/O Speed(1st run) : 239 MB/s
I/O Speed(2nd run) : 247 MB/s
I/O Speed(3rd run) : 278 MB/s
I/O Speed(average) : 254.7 MB/s
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Node Name Upload Speed Download Speed Latency
Speedtest.net 938.02 Mbps 918.24 Mbps 0.57 ms
Los Angeles, US 916.92 Mbps 864.43 Mbps 1.09 ms
Dallas, US 916.58 Mbps 77.29 Mbps 31.11 ms
Montreal, CA 429.35 Mbps 865.06 Mbps 68.53 ms
Amsterdam, NL 681.17 Mbps 24.99 Mbps 126.98 ms
Mumbai, IN 387.97 Mbps 227.19 Mbps 231.40 ms
Singapore, SG 166.62 Mbps 682.91 Mbps 165.94 ms
Tokyo, JP 802.17 Mbps 56.73 Mbps 102.88 ms
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Finished in : 3 min 46 sec
Timestamp : 2024-08-28 04:37:38 EDT
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