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测试使用的程序:
wget -qO- bench.sh | bash
先在promox 6.0 的Host 上测试一下IO:
---------------------------------------------------------------------- CPU model : Intel(R) Xeon(R) CPU E5-1650 v3 @ 3.50GHz Number of cores : 12 CPU frequency : 3600.230 MHz Total size of Disk : 94.0 GB (1.7 GB Used) Total amount of Mem : 64307 MB (1237 MB Used) Total amount of Swap : 8191 MB (0 MB Used) System uptime : 0 days, 0 hour 34 min Load average : 0.00, 0.00, 0.00 OS : Debian GNU/Linux 10 Arch : x86_64 (64 Bit) Kernel : 5.0.15-1-pve ---------------------------------------------------------------------- I/O speed(1st run) : 406 MB/s I/O speed(2nd run) : 406 MB/s I/O speed(3rd run) : 405 MB/s Average I/O speed : 405.7 MB/s
然后再proxmox上建立一个CentOS 7 的VM，在测试一下IO:
---------------------------------------------------------------------- CPU model : Common KVM processor Number of cores : 4 CPU frequency : 3499.996 MHz Total size of Disk : 29.0 GB (1.2 GB Used) Total amount of Mem : 4358 MB (124 MB Used) Total amount of Swap : 3275 MB (0 MB Used) System uptime : 0 days, 0 hour 2 min Load average : 0.20, 0.05, 0.02 OS : CentOS 7.6.1810 Arch : x86_64 (64 Bit) Kernel : 3.10.0-957.el7.x86_64 ---------------------------------------------------------------------- I/O speed(1st run) : 452 MB/s I/O speed(2nd run) : 455 MB/s I/O speed(3rd run) : 448 MB/s Average I/O speed : 451.7 MB/s
下面在裸机上直接安装CentOS，来测试一下IO Benchmark:
---------------------------------------------------------------------- CPU model : Intel(R) Xeon(R) CPU E5-1650 v3 @ 3.50GHz Number of cores : 12 CPU frequency : 1199.920 MHz Total size of Disk : 873.3 GB (1.3 GB Used) Total amount of Mem : 64316 MB (503 MB Used) Total amount of Swap : 7628 MB (0 MB Used) System uptime : 0 days, 0 hour 7 min Load average : 0.13, 0.07, 0.05 OS : CentOS 7.6.1810 Arch : x86_64 (64 Bit) Kernel : 3.10.0-957.el7.x86_64 ---------------------------------------------------------------------- I/O speed(1st run) : 390 MB/s I/O speed(2nd run) : 390 MB/s I/O speed(3rd run) : 389 MB/s Average I/O speed : 389.7 MB/s
看来Proxmox 是有什么cache加成，造成IO 的测试最快