Online.net SSD 基于KVM虚拟化的benchmark

机器为online.net 的 SSD 机器, VM 配置是4 vCPU 和 4 GB RAM

测试使用程序为:

wget -qO- bench.sh | bash

以下是测试结果:

----------------------------------------------------------------------
CPU model : Common KVM processor
Number of cores : 4
CPU frequency : 3495.948 MHz
Total size of Disk : 28.0 GB (1.1 GB Used)
Total amount of Mem : 4354 MB (73 MB Used)
Total amount of Swap : 4509 MB (0 MB Used)
System uptime : 0 days, 0 hour 4 min
Load average : 0.02, 0.05, 0.01
OS : Debian GNU/Linux 10
Arch : x86_64 (64 Bit)
Kernel : 4.19.0-5-amd64
----------------------------------------------------------------------
I/O speed(1st run) : 359 MB/s
I/O speed(2nd run) : 351 MB/s
I/O speed(3rd run) : 358 MB/s
Average I/O speed : 356.0 MB/s

在disk 打开cache(write back)以后的测试结果:
----------------------------------------------------------------------
CPU model            : Common KVM processor
Number of cores      : 4
CPU frequency        : 3495.948 MHz
Total size of Disk   : 28.0 GB (1.1 GB Used)
Total amount of Mem  : 4354 MB (70 MB Used)
Total amount of Swap : 4509 MB (0 MB Used)
System uptime        : 0 days, 0 hour 1 min
Load average         : 0.00, 0.00, 0.00
OS                   : Debian GNU/Linux 10
Arch                 : x86_64 (64 Bit)
Kernel               : 4.19.0-5-amd64
----------------------------------------------------------------------
I/O speed(1st run)   : 378 MB/s
I/O speed(2nd run)   : 369 MB/s
I/O speed(3rd run)   : 374 MB/s
Average I/O speed    : 373.7 MB/s

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