You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
Hello, I would like to ask how the utilized bandwidth is measured, and what are the chances that the measurements are very wrong. I am benchmarking a USB hub with 3 Kinect devices and usbtop reports ~1800KiB/s for my typical use of a single Kinect sensor. When I run three of them, the results are clearly show a bottleneck as the sum of the three bandwidth numbers usbtop show never exceeds 3000KiB/s, I see frame drops and ~15fps stream instead of 30.
However if I run a different application the same HUB and same Kinect reports 15263 KiB/s when used as webcam.
What could be the reason of these numbers? Is it possible that the actual bandwidth need by the Kinect is much more than what usbtop show?
The text was updated successfully, but these errors were encountered:
I've also been wondering something similar myself. I've got a UVC device and usbtop is only showing around 15MiB/s, which seems far too low for the amount of data it should be pushing. I'd expect more like 93MB/s for an the raw data coming from it.
I did some more poking, and it seems like usbtop was accurate for the UVC device in bulk mode, but was still showing low for isochronous mode. Potentially there's a bug there.
Hello, I would like to ask how the utilized bandwidth is measured, and what are the chances that the measurements are very wrong. I am benchmarking a USB hub with 3 Kinect devices and usbtop reports ~1800KiB/s for my typical use of a single Kinect sensor. When I run three of them, the results are clearly show a bottleneck as the sum of the three bandwidth numbers usbtop show never exceeds 3000KiB/s, I see frame drops and ~15fps stream instead of 30.
However if I run a different application the same HUB and same Kinect reports 15263 KiB/s when used as webcam.
What could be the reason of these numbers? Is it possible that the actual bandwidth need by the Kinect is much more than what usbtop show?
The text was updated successfully, but these errors were encountered: