[dpdk-dev] Is vhost vring_avail size tunable?

[Ouyang, Changchun]

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Tim Deng
> Sent: Sunday, June 7, 2015 4:02 PM
> To: dev at dpdk.org
> Subject: [dpdk-dev] Is vhost vring_avail size tunable?
> 
> 
> Hi,
> 
> Under heavy work load, I found there were some packet lost caused by
> "Failed to get enough desc from vring...", is there any way to get the vring
> size larger?
> 

Qemu has hard code to set the vring size as 256, you need change the value to a bigger one if you want to enlarge it.

Thanks
Changchun