Messages in this thread |  | | | Subject | Re: 2.6.19-rc1: Volanomark slowdown | | From | Arjan van de Ven <> | | Date | Wed, 08 Nov 2006 16:55:18 +0100 |
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On Tue, 2006-11-07 at 10:32 -0800, Tim Chen wrote: > The patch > > [TCP]: Send ACKs each 2nd received segment > commit: 1ef9696c909060ccdae3ade245ca88692b49285b > http://kernel.org/git/? > p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1ef9696c909060ccdae3ade245ca88692b49285b > > reduced Volanomark benchmark throughput by 10%. > This is because Volanomark sends > short message (<100 bytes) on its TCP > connections. This patch increases the number of ACKs > traffic by 3.5 times. > > By adopting this patch, we assume that with > small segment, having short delay is important > enough that we are willing to reduce bandwidth > with more ACKs.
I wonder if it's an option to use low priority QoS fields for these acks (heck I don't even know if ACKs have such fields in their packet) so that they can get dropped if there are more packets then there is bandwidth ....
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