lkml.org 
[lkml]   [2016]   [Jan]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2] Add support for usbfs zerocopy.
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

\
 
 \ /
  Last update: 2016-01-09 12:41    [W:1.465 / U:1.156 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site