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Re: [Xen-devel] "tcp: refine TSO autosizing" causes performance regression on Xen
- To: Rick Jones <rick.jones2@xxxxxx>
- From: Eric Dumazet <eric.dumazet@xxxxxxxxx>
- Date: Wed, 15 Apr 2015 11:32:14 -0700
- Cc: Jonathan Davies <Jonathan.Davies@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Wei Liu <wei.liu2@xxxxxxxxxx>, Ian Campbell <Ian.Campbell@xxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxxxxx>, netdev <netdev@xxxxxxxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Eric Dumazet <edumazet@xxxxxxxxxx>, Paul Durrant <paul.durrant@xxxxxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, Felipe Franciosi <felipe.franciosi@xxxxxxxxxx>, Christoffer Dall <christoffer.dall@xxxxxxxxxx>, David Vrabel <david.vrabel@xxxxxxxxxx>
- Delivery-date: Wed, 15 Apr 2015 18:32:38 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On Wed, 2015-04-15 at 11:19 -0700, Rick Jones wrote:
> Well, I'm not sure that it is George and Jonathan themselves who don't
> want to change a sysctl, but the customers who would have to tweak that
> in their VMs?
Keep in mind some VM users install custom qdisc, or even custom TCP
sysctls.
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