Re: [Xen-devel] "tcp: refine TSO autosizing" causes performance regression on Xen

Tim Deegan
2015-04-16T13:36:01Z

At 12:39 +0100 on 16 Apr (1429187952), George Dunlap wrote:
> Your comment lists three benefits:
> 1. better RTT estimation
> 2. faster recovery
> 3. high rates
>
> #3 is just marketing fluff; it's also contradicted by the statement that
> immediately follows it -- i.e., there are drivers for which the
> limitation does *not* give high rates.

AFAICT #3 is talking about throughput _under TCP_, where inflating the
RTT will absolutely cause problems.

Tim.