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I'm talking about Hyper-V IO performance improvements, not VT-d... My E5-2630 does support VT-d, but under Hyper-V, it's not anywhere near bare metal performanc
by vetinari 9y ago
I'm talking about Hyper-V IO performance improvements, not VT-d... My E5-2630 does support VT-d, but under Hyper-V, it's not anywhere near bare metal performance.
- Fnoord 9y agoAFAIK the I/O issues (hardware-wise, not talking about hyper-V specifically) were solved late '00s. Whether a HVM implements it or not is a different matter. From what I found its called Enlightened I/O as mentioned here [1] and with Hyper-V it works with Windows Vista & later, Windows 2008 & later, Linux kernel 3.14 and later, and "FreeBSD". If what you say is true, and its also true for ESXi, Docker, VirtualBox, KVM, etc. It'd be devastating for containers and cloud. Docker on Windows uses Hyper-V by default btw. [1] https://en.wikipedia.org/wiki/Hyper-V https://en.wikipedia.org/wiki/Hyper-V