[libvirt-users] Need to increase the rx and tx buffer size of my interface

[Ashish Kurian]

Hi Michal,

I installed the latest version from the git and did run the libvirt from
the new directory using /home/to/your/checkout/daemon/libvirtd

But I still see that the version is 1.3.1. I have also stopped the already
running libvirt daemon and ran the new daemon from the directory and it is
showing 1.3.1

Best Regards,
Ashish Kurian

On Thu, Oct 26, 2017 at 10:50 AM, Ashish Kurian <ashishbnv at gmail.com> wrote:

> Hi Michal,
>
> Mine is
>
> iplab at iceman:~$ libvirtd --version
> libvirtd (libvirt) 1.3.1
>
> I think this can be the issue. I will update and try again
>
>
>
> Best Regards,
> Ashish Kurian
>
> On Thu, Oct 26, 2017 at 10:46 AM, Michal Privoznik <mprivozn at redhat.com>
> wrote:
>
>> On 10/26/2017 10:38 AM, Ashish Kurian wrote:
>> > Hi Yalan and Michal,
>> >
>> > Thank you for your response. So what I understand is that I can change
>> > rx_queue size even if I use direct type interface and qemu driver as
>> long
>> > as the driver is virtio. Am I right?
>>
>> Yes.
>>
>> > If that is the case why am I getting
>> > the error saying that
>> >
>> > error: XML document failed to validate against schema: Unable to
>> validate
>> > doc against /usr/share/libvirt/schemas/domain.rng
>> > Extra element devices in interleave
>> > Element domain failed to validate content
>>
>> What's your libvirt version? For rx_queue_size you need 2.3.0 or newer.
>> For tx_queue_size you need 3.7.0 or newer (not that there's one yet).
>>
>> >
>> > for the following xml config? Btw I changed vepa to bridged mode hoping
>> it
>> > would help me. Also note that I tried the following without any driver
>> name
>> > and it still failed.
>> >
>> >
>> > <interface type='direct'>
>> >       <mac address='52:54:00:72:f9:eb'/>
>> >       <source dev='enp7s0f0' mode='bridge'/>
>> >       <model type='virtio'/>
>> >       <driver name='qemu' queues='5' rx_queue_size='512'>
>> >         <host csum='off' gso='off' tso4='off' tso6='off' ecn='off'
>> > ufo='off' mrg_rxbuf='off'/>
>> >         <guest csum='off' tso4='off' tso6='off' ecn='off' ufo='off'/>
>> >       </driver>
>> >
>>
>> This works for me. I'm running recent git.
>>
>> Michal
>>
>
>
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