USBXpress driver performance with Windows 10 Release 2004 and 20H2
04/97/2021 | 08:42 AM
We are using the USBXpress driver version 4.03 to communicate with a device, based on the C8051F340 Microcontroller. There appears to have been a dramatic drop in performance in recent Windows 10 releases.
A data transfer which previously took about a minute is now taking about 5 minutes. Here are some measurements that I made.
Windows release
Transfer time
Windows 10 release 1909
98s
Windows 10 release 2004
279s
Windows 10 release 20H2
346s
The time required for a single request and response was previously about 5 ms, but is now around 30 ms.
Is this a known problem?
Can anybody suggest a way to get back to the previous transfer speed?
USBXpress driver performance with Windows 10 Release 2004 and 20H2
We are using the USBXpress driver version 4.03 to communicate with a device, based on the C8051F340 Microcontroller. There appears to have been a dramatic drop in performance in recent Windows 10 releases.
A data transfer which previously took about a minute is now taking about 5 minutes. Here are some measurements that I made.
The time required for a single request and response was previously about 5 ms, but is now around 30 ms.
Is this a known problem?
Can anybody suggest a way to get back to the previous transfer speed?
Phil
Do you mean the driver here?