[PATCH] drm/i915: add rc6 residency times to debugfs

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

 



On Thu, Mar 22, 2012 at 22:42, Ben Widawsky <ben at bwidawsk.net> wrote:

> RC6 residency should be in intervals of 1.28us, and the counter wraps.
> Here is an example using awk to get the RC6 and RC6+ residency in
> seconds, since boot.
>
> cat /sys/kernel/debug/dri/0/i915_drpc_info  | grep residency | awk -F':'
> -F' '  '{print $5 * 1.28 / 1000000}'
>
> This is primarily for QA, but has other applications as well.
>

Note that we already have this in intel_reg_dumper as well, since
http://cgit.freedesktop.org/xorg/app/intel-gpu-tools/commit/?id=47a5bc505cb972cc94f1fbd9882d4e5c2e72ac43
.

But if it makes sense to include it into kernel as well, why not?

Reviewed-by: Eugeni Dodonov <eugeni.dodonov at intel.com>

-- 
Eugeni Dodonov
<http://eugeni.dodonov.net/>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20120323/33396c0c/attachment.html>


[Index of Archives]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]
  Powered by Linux