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

From: Daniel Jeliński <>
Date: Sat, 4 Aug 2018 07:53:24 +0200

2018-08-03 4:07 GMT+02:00 Jan Ehrhardt <>:
>>I also have a Windows 8.1 64-bits running in a Virtualbox on the Wondows
>>2008 R2 server. No speed improvement. Most of the times the patched
>>version is a little bit faster, but sometimes even slower. Typical
>>result below.
> The same happens with other Windows versions in a Virtualbox (on the
> Win2k8 server).

That one is disturbing. Wonder if this happens because ideal send
buffer query fails under virtualbox, or if it returns bogus values
(like 8 KiB). Which version of Virtualbox is that? How did you set up
the network adapter? I'd like to try and reproduce this here.
Thank you,
Received on 2018-08-04