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Re: Windows users! Help us test upload performance tuning?

From: Daniel Stenberg <>
Date: Tue, 7 Aug 2018 10:56:56 +0200 (CEST)

On Mon, 6 Aug 2018, Daniel Jeliński wrote:

> Well I guess the overhead of WSAIoCtl or setsockopt may be non-negligible
> for fast connections. I can't reproduce this here, can't find a network with
> low enough bandwidth-delay product. On high BDP the patched version is
> consistently faster.

Should we proceed and merge or is there
anything else we should check first?

The patch seems to significantly improve a lot of transfers and so far we've
only seen one case out of 30+ that got worse performance.


Received on 2018-08-07