Re: [REGRESSION][BISECTED] tun/tap & vhost-net: multi-threaded network performance

[Brett Sheffield]

On 2026-07-02 18:55, Michael S. Tsirkin wrote:
> On Thu, Jul 02, 2026 at 01:07:47PM +0200, Brett Sheffield wrote:
> > On 2026-07-02 09:24, Simon Schippers wrote:
> > > On 7/1/26 22:56, Michael S. Tsirkin wrote:
> > > > - does it help to increase the tun queue size?
> > > 
> > > I agree, this would be great to know.

I tried adding a queue (qdisc pfifo limit 500) on both host and guest - no
apparent difference in drops or performance.

If there's any other setting you want me to try, let me know.

> Maybe it's the supposedly rare case? Does this change anything
> for you?

I also tried both patches, but again, no noticable difference.


-- 
Brett Sheffield (he/him)
Librecast - Decentralising the Internet with Multicast
https://librecast.net/
https://blog.brettsheffield.com/