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Re: [Xen-devel] [PATCH net-next] xen-netfront: try linearizing SKB if it occupies too many slots
On Fri, 2014-05-16 at 17:51 +0100, Zoltan Kiss wrote:
> But reducing the gso_max_size would have a bad impact on the general
> network throughput, right?
Not really.
Sending TSO packets with 44 MSS in them instead of 45 might in fact help
a bit. I never could detect any difference.
LRO/GRO receivers aggregate at most 17 or 22 segments anyway.
I said 56000 only as a quick way to test the thing
If you want an explicit formula, it might be :
SKB_WITH_OVERHEAD(65535 - LL_MAX_HEADER) or something like that...
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