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Re: [Qemu-discuss] Throttle in virtio-net
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From: |
Alberto Garcia |
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Subject: |
Re: [Qemu-discuss] Throttle in virtio-net |
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Date: |
Tue, 06 Sep 2016 16:10:05 +0200 |
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User-agent: |
Notmuch/0.18.2 (http://notmuchmail.org) Emacs/24.4.1 (i586-pc-linux-gnu) |
On Mon 05 Sep 2016 10:52:40 AM CEST, Pradeep Kiruvale wrote:
>> > I am planning to implement throttling functionality for virtio-net
>> > driver using the throttling APIs that exist inside qemu.
>>
>> the problem with implementing throttling for the network is that
>> it's useless if you use the vhost_net kernel accelerator, because it
>> bypasses QEMU entirely:
>>
>> https://access.redhat.com/documentation/en-US/Red_Hat_
>> Enterprise_Linux/7/html/Virtualization_Tuning_and_Optimization_Guide/sect-
>> Virtualization_Tuning_Optimization_Guide-Networking-
>> Virtio_and_vhostnet.html
>
> Thanks for this very valuable information. What if someone wants to
> just use virtio-net without the vhost acceleration?
I think you can use tc just the same, as far as I'm aware that's what
libvirt does.
Berto