即使使用英特尔驱动程序，VMware ESXi 和英特尔 DC3700 (NVMe) 性能仍然不佳

Question

我正在运行带有 Intel DC3700 800GB 的 VMware ESXi 6.0.0。

我的虚拟机运行的是 Windows 10 x64，具有 8GB RAM 和 4 个 CPU 核心。整个虚拟机为 32GB，位于 SSD 上。

我正在使用 CrystalDiskMark 测试 1GiB 文件大小，并且关心顺序读取：

• 当我将 Windows 直接安装到 SSD 上时，读取速度达到 2700MB/s。
• 在我安装 VMW-ESX-5.5.0-intel-nvme-1.0e.1.1-2791094 之前，我的读取速度是 800MB/s。
• 现在我已经安装它了，但读取速度仍然只有 1700MB/s。

我可能忽略了什么导致它仍然运行缓慢？

[root@localhost:~] esxcfg-scsidevs -a
vmhba38 ahci              link-n/a  sata.vmhba38                            (0000:00:1f.2) Intel Corporation Wellsburg AHCI Controller
vmhba39 ahci              link-n/a  sata.vmhba39                            (0000:00:1f.2) Intel Corporation Wellsburg AHCI Controller
vmhba0  ahci              link-n/a  sata.vmhba0                             (0000:00:11.4) Intel Corporation Wellsburg AHCI Controller
vmhba1  ahci              link-n/a  sata.vmhba1                             (0000:00:1f.2) Intel Corporation Wellsburg AHCI Controller
vmhba2  intel-nvme        link-n/a  pscsi.vmhba2                            (0000:04:00.0) Intel Corporation DC P3700 AIC
vmhba40 ahci              link-n/a  sata.vmhba40                            (0000:00:1f.2) Intel Corporation Wellsburg AHCI Controller
vmhba41 pernixgateway     link-n/a  gsan.0430f73826a28                      () Unknown
vmhba32 usb-storage       link-n/a  usb.vmhba32                             () USB
vmhba33 ahci              link-n/a  sata.vmhba33                            (0000:00:11.4) Intel Corporation Wellsburg AHCI Controller
vmhba34 ahci              link-n/a  sata.vmhba34                            (0000:00:11.4) Intel Corporation Wellsburg AHCI Controller
vmhba35 ahci              link-n/a  sata.vmhba35                            (0000:00:11.4) Intel Corporation Wellsburg AHCI Controller
vmhba36 ahci              link-n/a  sata.vmhba36                            (0000:00:1f.2) Intel Corporation Wellsburg AHCI Controller
vmhba37 ahci              link-n/a  sata.vmhba37                            (0000:00:1f.2) Intel Corporation Wellsburg AHCI Controller
[root@localhost:~] for a in $(esxcfg-scsidevs -a |awk '{print $2}') ;do vmkload_mod -s $a |grep -i version ;done
Version: Version 3.0-22vmw, Build: 3029758, Interface: 9.2 Built on: Aug 31 2015
Version: Version 3.0-22vmw, Build: 3029758, Interface: 9.2 Built on: Aug 31 2015
Version: Version 3.0-22vmw, Build: 3029758, Interface: 9.2 Built on: Aug 31 2015
Version: Version 3.0-22vmw, Build: 3029758, Interface: 9.2 Built on: Aug 31 2015
Version: 1.0e.1.1-1OEM.550.0.0.1391871
Version: Version 3.0-22vmw, Build: 3029758, Interface: 9.2 Built on: Aug 31 2015
Version: Version 1.0-3vmw, Build: 3029758, Interface: 9.2 Built on: Aug 31 2015
Version: Version 3.0-22vmw, Build: 3029758, Interface: 9.2 Built on: Aug 31 2015
Version: Version 3.0-22vmw, Build: 3029758, Interface: 9.2 Built on: Aug 31 2015
Version: Version 3.0-22vmw, Build: 3029758, Interface: 9.2 Built on: Aug 31 2015
Version: Version 3.0-22vmw, Build: 3029758, Interface: 9.2 Built on: Aug 31 2015
Version: Version 3.0-22vmw, Build: 3029758, Interface: 9.2 Built on: Aug 31 2015