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

From: Eric Dumazet
Date: Wed Apr 15 2015 - 14:08:38 EST

On Wed, 2015-04-15 at 10:55 -0700, Rick Jones wrote:
> >
> > Have you tested this patch on a NIC without GSO/TSO ?
> >
> > This would allow more than 500 packets for a single flow.
> >
> > Hello bufferbloat.
> Woudln't the fq_codel qdisc on that interface address that problem?

Last time I checked, default qdisc was pfifo_fast.

These guys do not want to change a sysctl, how pfifo_fast will magically
becomes fq_codel ?

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