[Bloat] DSLReports Speed Test doesn't like Remote Desktop

[Jonathan Morton]

> On 27 Aug, 2021, at 2:25 am, Kenneth Porter <shiva at sewingwitch.com> wrote:
> 
> The DSLReports speed test gives me <5 Mbps download speed when used over a Remote Desktop connection. The same test gives me around 200 Mbps when run on my machine connected to my display. The Waveform test shows 200 Mbps from the remote machine. All are done with Chrome. Bunch of tabs open on both, similar sets of extensions.
> 
> I'm testing my Comcast XB3 modem + OpenWrt router before upgrading it to XB7.
> 
> I use two computers, both Win10-x64. One's a half-height with a bit better CPU and memory that I use for development and web/mail, while the other has a full-height tower chassis so it has my good video card for gaming. I have my big 43" display hooked to the latter and I remote to the short machine for "business" use.
> 
> https://www.waveform.com/tools/bufferbloat?test-id=62b54f0c-eb3e-40c8-ab99-4f2105f39525
> 
> This one looks very poor, 4 Mbps:
> 
> http://www.dslreports.com/speedtest/69341504
> 
> Much better, direct instead of through RDP:
> 
> http://www.dslreports.com/speedtest/69341657

A browser-based speed test like DSLreports depends heavily on the responsiveness of the browser itself.  It would appear that RDP interferes with that quite spectacularly, although I'm unsure exactly why.  The only advice I can give is "don't do that, then".

 - Jonathan Morton