Re: [PATCH net-next 2/2] virtio-net: coalesce rx frags when possible during rx

2013-10-31 Thread Jason Wang
On 11/01/2013 10:13 AM, Rusty Russell wrote: > Jason Wang writes: >> Commit 2613af0ed18a11d5c566a81f9a6510b73180660a (virtio_net: migrate >> mergeable >> rx buffers to page frag allocators) try to increase the payload/truesize for >> MTU-sized traffic. But this will introduce the extra overhead f

Re: [PATCH net-next 2/2] virtio-net: coalesce rx frags when possible during rx

2013-10-31 Thread Rusty Russell
Jason Wang writes: > Commit 2613af0ed18a11d5c566a81f9a6510b73180660a (virtio_net: migrate mergeable > rx buffers to page frag allocators) try to increase the payload/truesize for > MTU-sized traffic. But this will introduce the extra overhead for GSO packets > received because of the frag list. Th

Re: [PATCH net-next 2/2] virtio-net: coalesce rx frags when possible during rx

2013-10-31 Thread Michael S. Tsirkin
On Thu, Oct 31, 2013 at 06:28:33PM +0800, Jason Wang wrote: > Commit 2613af0ed18a11d5c566a81f9a6510b73180660a (virtio_net: migrate mergeable > rx buffers to page frag allocators) try to increase the payload/truesize for > MTU-sized traffic. But this will introduce the extra overhead for GSO packets

[PATCH net-next 2/2] virtio-net: coalesce rx frags when possible during rx

2013-10-31 Thread Jason Wang
Commit 2613af0ed18a11d5c566a81f9a6510b73180660a (virtio_net: migrate mergeable rx buffers to page frag allocators) try to increase the payload/truesize for MTU-sized traffic. But this will introduce the extra overhead for GSO packets received because of the frag list. This commit tries to reduce th