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Re: NetBSD disk performance on VirtualBox

On 18.03.2018 15:41, Sad Clouds wrote:
> On Sun, 18 Mar 2018 15:38:40 +0100
> Kamil Rytarowski <> wrote:
>> On 18.03.2018 14:41, Sad Clouds wrote:
>>> Hello, are there known I/O performance issues with NetBSD on
>>> VirtualBox? I've setup two similar VMs, one Linux, another one
>>> NetBSD, both use SATA virtual controller with one disk.
>>> Writing 1GB file sequentially:
>>> - Linux gives 425MB/sec,
>>> - NetBSD gives 27MB/sec.
>>> Repeated this several times, and got the same result.
>>> Is this expected with NetBSD?
>> I've been observing performance issues under qemu+KVM (on a hosting
>> provider), making the OS very slow. This was related to virtio
>> drivers.
>> I have not investigated it so far.
> Hello, would that be any virtio drivers, or just disk drivers? I'm
> using VirtualBox virtio-net for network adapter, not sure if this has
> any effect.

This is virtio disk related.

I don't need virtio-net performance that much and I have not been
benchmarking it.

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