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