Re: [virtio-dev] RE: [PATCH v5 2/2] virtio-net: use mtu size as buffer length for big packets
From: Si-Wei Liu <hidden>
Date: 2022-09-07 21:40:26
Also in:
virtualization
From: Si-Wei Liu <hidden>
Date: 2022-09-07 21:40:26
Also in:
virtualization
On 9/7/2022 12:51 PM, Parav Pandit wrote:
quoted
And I'd like commit log to include results of perf testing - with indirect feature onWhich device do you suggest using for this test?
You may use software vhost-net backend with and without fix to compare. Since this driver fix effectively lowers down the buffer size for the indirect=on case as well, it's a natural request to make sure no perf degradation is seen on devices with indirect descriptor enabled. I don't expect degradation though and think this patch should improve efficiency with less memory foot print. Cheers, -Siwei