USB 3.0 Speeds – Now and Later
Very interestin article posted by Eric Huang on his blog. I only give you this little preview:
The performance of any standard is based not on just the standard, but the implementation. It’s always execution that matters. Factors that influence performance are:
- USB controller implementation on the device
- Interface to the controller in the device
- Interrupt latency on the bus on the device
- Bus latency on the device
- Firmware and driver implementation on the device
- Operating system on the device
- PHY implementation on the device
- Quality of the USB cable
- PHY implementation on the host
- Operating system on the host
- Stacks and drivers on the host
- Bus latency on the host (for example PCI-Express):
I’m waiting for a real good USB 3.0 implementation!
