netdev - Re: [PATCH net-next RFC 5/5] vhost_net: basic tx virtqueue batched processing

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Message-ID: <1455d9db-3f2f-4139-8729-29fb03dd73aa@redhat.com>
Date:   Thu, 28 Sep 2017 15:52:59 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     "Michael S. Tsirkin" <mst@...hat.com>
Cc:     virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH net-next RFC 5/5] vhost_net: basic tx virtqueue batched
 processing



On 2017年09月28日 06:19, Michael S. Tsirkin wrote:
>
>>> 2. add new APIs and move the loop into vhost core
>>>      for more speedups
>> I don't see any advantages, looks like just need some e.g callbacks in this
>> case.
>>
>> Thanks
> IUC callbacks pretty much destroy the code cache locality advantages,
> IP is jumping around too much.

I may miss something, but we need net specific code anyway in this case?

Thanks