On Wed, Nov 25, 2015 at 7:19 PM, Steinar H. Gunderson <sesse@xxxxxxxxxx> wrote: > Add a new interface for userspace to preallocate memory that can be > used with usbfs. This gives two primary benefits: Extended testing over one hour shows significant improved CPU usage and stability: The old CPU usage is about 12% +/- 5%. The new CPU usage is 4% +/- 1%. The setup is an i7-4600U laptop running Kinect v2 with 260MB/s isochronous and 20MB/s bulk transfers. The improvement in reducing jitter is particularly preferable to Kinect v2 driver because the isochronous data is structured and one packet lost means discarding a lot of data. Regards, Lingzhu -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
