I think that this also causes problems with watching youtube: stutters like crazy. My laptop gets speeds of about 180Mbit down and 30 up, which is about my line speed. This is from within the browser as well as the speedtest command line. Speedtest results are between 2 and 12Mbit down and up to 23 up. Now, maybe a different issue here but I am also getting very slow speeds on WiFi. In context, CPU usage is less than 25% during the VPN speed tests where I achieve the 100/100 speeds." I know the pi doesn't have hardware accelerated encryption, but with all of the improvements between the 3B+ and the 4B, I would've expected a larger gain in throughout speeds. I was hoping for more, having read the OpenVPN Performance Thread and wondered if my above issue was contributing. I don't understand how the upload can go much faster, using less CPU while the download is limited so harshly.Īdditionally pivpn speeds on the 4B are 100/100mb/s. I was wondering if anyone else had noticed this as well and had any troubleshooting advice. Other ethernet connected computer (desktop) able to hit 950/950mb/s. I'm running the latest version of Buster. I have run vcgencmd measure_temp with nothing higher than 54C during tests. I've factory reset my router, used many different speed tests and servers, all with the similar results (I can list if need be). On the download side, there is a clear link between CPU usage and network speeds and I don't know what's triggering this. Running browser speed tests through chromium, I'm getting a peak of 200mb/s down with speeds ranging from 20-80mb/s at the end of the test (with 100% CPU usage at peak) and 600-800mb/s up on average, peaking at 900mb/s (with about 50% CPU usage at peak). I bought a pi 4B, anticipating I'd get a sizable network performance boost given the better CPU, 4GB ram, and gig Ethernet. "I own a 3B+, run pivpn and get speeds of approximately 70/70mb/s when connected to the VPN (ISP speeds are gig symmetrical connected via ethernet VPN cipher is aes-256-cbc CPU usage at 80% when speeds hit 70's and limits speeds from going higher). In my post below, I outlined the troubleshooting I did without success Ethernet and wifi connection occasionally dropping for 1-3 seconds, intermittently. Uploads are not affected and I get at least 600 each test, most times in the 800's without the same CPU usage. In short, I am getting a peak of 200-300Mb/s download before my CPU usage goes to 100% and my speed falls to about 50-100Mb/s. I posted an article on the raspberry pi reddit page but didn't get any response there (I'll paste the post below).
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