Re: Why do speedtest websites show much lower download speed in the Chromium browser?

Hi,

You could ask the maintainer of Chromium (chromium@FreeBSD.org) if this is a known issue.
Or make some network dumps (see tcpdump and wireshark) and compare the network traffic. Maybe one of them handles smaller packets or something like that.

You can also look at this:
# netstat
Active Internet connections
Proto Recv-Q Send-Q Local Address          Foreign Address        (state)    
tcp4       0      0 rpi4.thuis.DDDD..ssh   MacBonkers.thuis.55545 ESTABLISHED
tcp4       0      0 rpi4.thuis.DDDD..jetdi monitoring.thuis.17925 ESTABLISHED
udp6       0      0 2001-XXXX-YYYY-7.ntp   *.*                    
udp4       0      0 localhost.ntp          *.*                    

If Recv-Q contains a lot of bytes it means the application is not fast enough in handling the incoming traffic and the OS will throttle the traffic at some threshold.

Regards,
Ronald.

 
Van: Yuri <yuri@FreeBSD.org>
Datum: dinsdag, 22 november 2022 22:30
Aan: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>
Onderwerp: Why do speedtest websites show much lower download speed in the Chromium browser?
> 
> When I run https://fiber.google.com/speedtest/ or https://www.speedtest.net/ in Firefox - they show ~400Mbps download speed, and ~25Mbps upload speed.
> 
> Same websites, when run in Chromium, show ~50Mbps download speed, and ~25Mbps upload speed.
> 
> 
> Something appears to be wrong with Chromium that it doesn't show the real speed.
> 
> Anybody has an idea what might be wrong?
> 
> 
> Sorry for this being potentially off-topic here. I couldn't think of any other forum where to ask this.
> 
> 
> Thanks,
> 
> Yuri
> 
> 
> Â 
> 
> 
>