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From: Jason Wang <jasowang@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: virtualization@lists.linux-foundation.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org
Subject: Re: [PATCH net-next RFC 5/5] vhost_net: basic tx virtqueue batched processing
Date: Thu, 28 Sep 2017 15:52:59 +0800	[thread overview]
Message-ID: <1455d9db-3f2f-4139-8729-29fb03dd73aa@redhat.com> (raw)
In-Reply-To: <20170928011724-mutt-send-email-mst@kernel.org>



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

  parent reply	other threads:[~2017-09-28  7:53 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-22  8:02 [PATCH net-next RFC 0/5] batched tx processing in vhost_net Jason Wang
2017-09-22  8:02 ` [PATCH net-next RFC 1/5] vhost: split out ring head fetching logic Jason Wang
2017-09-22  8:31   ` Stefan Hajnoczi
2017-09-25  2:03     ` Jason Wang
2017-09-22  8:02 ` [PATCH net-next RFC 2/5] vhost: introduce helper to prefetch desc index Jason Wang
2017-09-22  9:02   ` Stefan Hajnoczi
2017-09-25  2:04     ` Jason Wang
2017-09-26 19:19   ` Michael S. Tsirkin
2017-09-27  0:35     ` Jason Wang
2017-09-27 22:57       ` Michael S. Tsirkin
2017-09-28  7:18         ` Jason Wang
2017-09-28  0:47   ` Willem de Bruijn
2017-09-28  7:44     ` Jason Wang
2017-09-22  8:02 ` [PATCH net-next RFC 3/5] vhost: introduce vhost_add_used_idx() Jason Wang
2017-09-22  9:07   ` Stefan Hajnoczi
2017-09-26 19:13   ` Michael S. Tsirkin
2017-09-27  0:38     ` Jason Wang
2017-09-27 22:58       ` Michael S. Tsirkin
2017-09-28  0:59         ` Willem de Bruijn
2017-09-28  7:19         ` Jason Wang
2017-09-22  8:02 ` [PATCH net-next RFC 4/5] vhost_net: rename VHOST_RX_BATCH to VHOST_NET_BATCH Jason Wang
2017-09-22  8:02 ` [PATCH net-next RFC 5/5] vhost_net: basic tx virtqueue batched processing Jason Wang
2017-09-26 19:25   ` Michael S. Tsirkin
2017-09-27  2:04     ` Jason Wang
2017-09-27 22:19       ` Michael S. Tsirkin
2017-09-28  7:02         ` Jason Wang
2017-09-28  7:52         ` Jason Wang [this message]
2017-09-28  0:55   ` Willem de Bruijn
2017-09-28  7:50     ` Jason Wang
2017-09-26 13:45 ` [PATCH net-next RFC 0/5] batched tx processing in vhost_net Michael S. Tsirkin
2017-09-27  0:27   ` Jason Wang
2017-09-27 22:28     ` Michael S. Tsirkin
2017-09-28  7:16       ` Jason Wang
2017-09-26 19:26 ` Michael S. Tsirkin
2017-09-27  2:06   ` Jason Wang

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