#Usb hub with ethernet comparison upgrade
#Usb hub with ethernet comparison download

If you use Internet traffic, that could be limited by your router, by your cabling, by your ISP. How are you measuring? If you use iperf, and don't have any other things running on the Pi, then it should test raw data throughput.There are a number of reasons you might not be getting more than 100 Mbps of throughput:

#Usb hub with ethernet comparison upgrade

Dramatic onboard LAN upgrade in model 2?.Pi2 - is the file transfer over ethernet better than B+ ?.Benchmark various network configurations.So, if you need the raw throughput increase, using a USB 3.0 Gigabit adapter will definitely take you further than using onboard LAN-at the cost of slightly higher total power consumption and an unsightly dongle hanging off the Pi :) Switching to a Gigabit adapter almost doubled the throughput, and I was able to serve about 5000 requests/second at a rate of 200 Mbps! In working on building a high-performance cluster of Raspberry Pi 3s for my Dramble cluster, I wanted to see just how scalable I could make the Nginx load balancer (which was also acting as a reverse proxy cache).Īfter making sure the Nginx configuration could support thousands of requests per second on the 4-core Pi, I discovered that I was easily able to saturate the onboard 10/100 LAN at about 95 Mbps serving cached content at around 1800 requests/second.

#Usb hub with ethernet comparison download

Here's an additional graph, comparing speeds between the B+/A+ and the model 2/3 (the onboard LAN has been dramatically improved, and I double-checked these results to confirm the increased download bandwidth!): If you're hungry for faster networking, and you can't wait until the Raspberry Pi 4 (or whatever starts including Gigabit Ethernet), know that you can more-than-double the built-in bandwidth capacity. However, for many real-world use cases, the Pi's other subsystems (CPU and disk I/O especially, since I/O is on a single, shared USB 2.0 bus) will limit the available bandwidth. streaming full-res HD video, streaming and processing large amounts of data, etc.).

Or, in a nice graphical format (note that this chart is slightly out of date as of early 2016):įor certain use cases, this more-than-doubled bandwidth can be extremely beneficial (e.g. (These were as measured on a Pi 3-the model 2 and B+ have slight speed differences which I'll enumerate in a chart below). After configuring the interface by editing /etc/network/interfaces and adding a line for the new eth1 adapter, I ran standard iperf benchmarks on all the interfaces and found the following results: I then purchased a TRENDnet USB 3.0 Gigabit adapter from Amazon to test on my Pi. I've tested the onboard LAN port (rated as 10/100 Fast Ethernet, and driven through the onboard USB 2.0 bus), and a few different 802.11n WiFi cards, and the raw throughput speeds ranged from ~45 Mbps with the 802.11n cards (with a very strong signal) to ~94 Mbps with the onboard LAN. If you're taxing the CPU and USB device bandwidth on the new USB 3.0 ports, you might not get consistent Gbps-range performance, but in my testing so far, the Pi 4 can sustain over 900 Mbps (// I received a shipment of some Raspberry Pi 2 model B computers for a project I'm working on (more on that to come!), and as part of my project, I've been performing a ton of benchmarks on every aspect of the 2, B+, and A+ Pis I have on hand-CPU, disk (microSD), external SSD, external HDD, memory, and networking. Note about model 4: The Raspberry Pi 4 model B finally has true Gigabit wired LAN, owing to it's new I/O architecture. So if you have a 3 B+, there's no need to buy an external USB Gigabit adapter if you want to max out the wired networking speed! Note about model 3 B+: The Raspberry Pi 3 model B+ includes a Gigabit wired LAN adapter onboard-though it's still hampered by the USB 2.0 bus speed (so in real world use you get ~224 Mbps instead of ~950 Mbps). Tl dr You can get Gigabit networking working on any current Raspberry Pi (A+, B+, Pi 2 model B, Pi 3 model B), and you can increase the throughput to at least 300+ Mbps (up from the standard 100 Mbps connection via built-in Ethernet).