Messages in this thread |  | | Subject | Re: [Xen-devel] "tcp: refine TSO autosizing" causes performance regression on Xen | From | Eric Dumazet <> | Date | Wed, 15 Apr 2015 21:30:57 -0700 |
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On Thu, 2015-04-16 at 12:20 +0800, Herbert Xu wrote: > Eric Dumazet <eric.dumazet@gmail.com> wrote: > > > > We already have netdev->gso_max_size and netdev->gso_max_segs > > which are cached into sk->sk_gso_max_size & sk->sk_gso_max_segs > > It is quite dangerous to attempt tricks like this because a > tc redirection or netfilter nat could change the destination > device rendering such hints incorrect.
Right but we are talking of performance hints, on quite basic VM setup.
Here the guest would use xen and this hint would apply.
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