[Bug 105712] intel-gpu-overlay is showing insane power consumption amounts

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105712

Lakshmi  changed:

   What|Removed |Added

 Status|RESOLVED|CLOSED

--- Comment #12 from Lakshmi  ---
Closing this bug, as it was resolved/fixed.

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[Bug 105712] intel-gpu-overlay is showing insane power consumption amounts

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105712

Chris Wilson  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #11 from Chris Wilson  ---
Thank you for the bug report and the invaluable testing.

commit 3fa0b027304ec28cd24b314349d3731b55dfcc0a (HEAD, upstream/master)
Author: Chris Wilson 
Date:   Tue Mar 27 15:20:51 2018 +0100

overlay: Call setlocale around strtod

strtod() is locale-dependent. The decimal conversion depends on the radix
character ('.' for some of us like myself) varies by locale. As the
kernel reports its values using the "C" locale, we need to switch to
that when parsing; and switch back before reporting to the user.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105712
Signed-off-by: Chris Wilson 
Cc: Tvrtko Ursulin 
Reviewed-by: Tvrtko Ursulin 

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[Bug 105712] intel-gpu-overlay is showing insane power consumption amounts

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105712

--- Comment #10 from leozinho29...@hotmail.com ---
With this patch, the power consumption is shown correctly.

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[Bug 105712] intel-gpu-overlay is showing insane power consumption amounts

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105712

--- Comment #9 from Chris Wilson  ---
Created attachment 138378
  --> https://bugs.freedesktop.org/attachment.cgi?id=138378=edit
Use setlocale("C") around strtod

Please try the attached patch.

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[Bug 105712] intel-gpu-overlay is showing insane power consumption amounts

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105712

--- Comment #8 from leozinho29...@hotmail.com ---
$ sudo cat /sys/devices/power/events/energy-gpu.scale
2.3283064365386962890625e-10

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[Bug 105712] intel-gpu-overlay is showing insane power consumption amounts

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105712

--- Comment #7 from Chris Wilson  ---
And for completeness:  cat /sys/devices/power/events/energy-gpu.scale

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[Bug 105712] intel-gpu-overlay is showing insane power consumption amounts

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105712

--- Comment #6 from leozinho29...@hotmail.com ---
The lines

fprintf(stderr, "rapl_type_id()=%"PRIx64",
rapl_gpu_power()=%"PRIx64"\n",
rapl_type_id(), rapl_gpu_power());

made the overlay fail to build. I have changed that to (using lx is not
perfect, but PRIx64 made it fail to build):

fprintf(stderr, "rapl_type_id()=%lx\n",rapl_type_id());
fprintf(stderr, "rapl_gpu_power()=%lx\n",rapl_gpu_power());

which should result in the intended output. It was:

rapl_type_id()=d
rapl_gpu_power()=4
rapl_gpu_power_scale()=2,00

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[Bug 105712] intel-gpu-overlay is showing insane power consumption amounts

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105712

--- Comment #5 from Chris Wilson  ---
Add a couple of printfs,

diff --git a/overlay/power.c b/overlay/power.c
index 9ac90fde..e6ac728a 100644
--- a/overlay/power.c
+++ b/overlay/power.c
@@ -117,8 +117,12 @@ int power_init(struct power *power)
memset(power, 0, sizeof(*power));

power->fd = igt_perf_open(rapl_type_id(), rapl_gpu_power());
+   fprintf(stderr, "rapl_type_id()=%"PRIx64",
rapl_gpu_power()=%"PRIx64"\n",
+   rapl_type_id(), rapl_gpu_power());
if (power->fd >= 0) {
power->rapl_scale = rapl_gpu_power_scale();
+   fprintf(stderr, "rapl_gpu_power_scale()=%f\n",
+   rapl_gpu_power_scale());

if (power->rapl_scale != NAN) {
power->rapl_scale *= 1e3; /* from nano to micro */

and run with -f (so that it doesn't detach and we can see the output).

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[Bug 105712] intel-gpu-overlay is showing insane power consumption amounts

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105712

--- Comment #4 from leozinho29...@hotmail.com ---
With this change it is showing the values as expected, 350 mW instead of
35000 mW.

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[Bug 105712] intel-gpu-overlay is showing insane power consumption amounts

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105712

--- Comment #3 from Chris Wilson  ---
Ok, try changing intel-gpu-tools:

diff --git a/overlay/power.c b/overlay/power.c
index 9ac90fde..e02edec8 100644
--- a/overlay/power.c
+++ b/overlay/power.c
@@ -116,7 +116,8 @@ int power_init(struct power *power)

memset(power, 0, sizeof(*power));

-   power->fd = igt_perf_open(rapl_type_id(), rapl_gpu_power());
+   power->fd = -1;
+   //power->fd = igt_perf_open(rapl_type_id(), rapl_gpu_power());
if (power->fd >= 0) {
power->rapl_scale = rapl_gpu_power_scale();

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[Bug 105712] intel-gpu-overlay is showing insane power consumption amounts

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105712

--- Comment #2 from leozinho29...@hotmail.com ---
I suppose drm-tip is this: https://cgit.freedesktop.org/drm-tip

I have tried to use that kernel but intel-gpu-overlay is still showing the
super high values. Both older versions of intel-gpu-overlay and turbostat show
sane values.

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[Bug 105712] intel-gpu-overlay is showing insane power consumption amounts

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105712

--- Comment #1 from Chris Wilson  ---
Please try drm-tip as the interface intel-gpu-overlay uses has finally been
upstreamed, hopefully it's just that.

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[Bug 105712] intel-gpu-overlay is showing insane power consumption amounts

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=105712

Bug ID: 105712
   Summary: intel-gpu-overlay is showing insane power consumption
amounts
   Product: DRI
   Version: unspecified
  Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
  Severity: normal
  Priority: medium
 Component: IGT
  Assignee: dri-devel@lists.freedesktop.org
  Reporter: leozinho29...@hotmail.com

Created attachment 138312
  --> https://bugs.freedesktop.org/attachment.cgi?id=138312=edit
Screenshot showing intel-gpu-overlay in Xnest

The program intel-gpu-overlay from intel-gpu-tools is showing very high numbers
of power consumption. It is showing values as high as 60 GW of power
(60 mW). Comparing the values to versions that were OK previously
(intel-gpu-tools 1.18 shows proper values), it appears that there are many
additional numbers that should be in the decimal places, so that 60
mW would be 6000,00 mW, or 6 W (which, usually, is the maximum I've
seen so far).

This is happening both with intel-gpu-tools 1.22 and with the latest git
(c2ee9077).

-- chipset: Intel Core i3-6100U
-- system architecture: 64-bit
-- xf86-video-intel: 2:2.99.917+git20171229-1
-- xserver: 2:1.19.6-1ubuntu3
-- mesa: 18.1.0-devel (git-903e9952fb)
-- libdrm: 2.4.91-2
-- kernel: 4.16.0-rc6
-- Linux distribution: Xubuntu 18.04 (Development branch)
-- Machine or mobo model: Lenovo Ideapad 310-14ISK 80UG
-- Display connector: eDP and VGA

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