RE: Tuning Linux for faster high-latency outbound transfers

From: Jeff Haran
Date: Wed Jan 27 2010 - 18:07:41 EST


> -----Original Message-----
> From: linux-net-owner@xxxxxxxxxxxxxxx
> [mailto:linux-net-owner@xxxxxxxxxxxxxxx] On Behalf Of Ketil Froyn
> Sent: Wednesday, January 27, 2010 12:05 PM
> To: Matt Zagrabelny
> Cc: linux-net@xxxxxxxxxxxxxxx
> Subject: Re: Tuning Linux for faster high-latency outbound transfers
>
> 1. ping shows a ~1% packet loss (2 packets out of 120 missing).

Not that I am an expert, but 1% packet loss seems very high to me. It could be the whole reason you are seeing the poor throughput.

If I was you, I'd concentrate on getting that fixed before I spent a lot of time tuning TCP parameters.

Jeff Haran
Brocade Communications
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