Re: [PATCH v2] Add support for usbfs zerocopy.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Jan 08, 2016 at 11:00:54PM -0500, Lingzhu Xiang wrote:
> 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.

Thanks for testing this! It's not unexpected, but it's good to see others
are also seeing performance improvements.

/* Steinar */
-- 
Software Engineer, Google Switzerland
--
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



[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux