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<head>
<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BDW]GFX device consume the same Watt as Idle when it's active"
href="https://bugs.freedesktop.org/show_bug.cgi?id=80078">80078</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BDW]GFX device consume the same Watt as Idle when it's active
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>lei.a.liu@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=101142" name="attach_101142" title="dmesg">attachment 101142</a> <a href="attachment.cgi?id=101142&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
3.15-kernel-2014Q2-release (fail)
commit:1860e379875dfe7271c649058aeddffe5afd9d0d
==kernel==
--------------------------
-nightly: b438e8793c6d18b0998d75cdf8115a5898ed21d1 (works)
drm-intel-nightly: 2014y-06m-13d-22h-09m-12s integration manifest
-queued: 868d665b43473e230d560d5186535270a3d57a19 (works)
drm/i915: Fix memory leak in intel_dsi_init() error path
-fixes: 223a6f2b975ab35d93270ea1d4fb6e0ac6b27fe6 (works)
drm/i915/bdw: remove erroneous chv specific workarounds from bdw code
==Bug detailed description==
-----------------------------
GFX device consume same Watt no matter when it's idle or active.
[root@x-bdw05 tests]# /GFX/Test/P304 frames in 5.0 seconds = 60.730 FPS
erformance/performance_pnp/301 frames in 5.0 seconds = 60.001 FPS
turbostat
301 frames in 5.0 seconds = 60.001 FPS
Core CPU Avg_MHz %Busy Bzy_MHz TSC_MHz SMI CPU%c1 CPU%c3
CPU%c6 CPU%c7 CoreTmp PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 Pkg%pc8 Pkg%pc9
Pk%pc10 PkgWatt CorWatt GFXWatt
- - 7 0.43 1631 1796 0 99.57 0.00
0.00 0.00 35 36 0.00 0.00 0.00 0.00 0.00 0.00
0.00 2.23 0.06 0.06
0 0 12 0.77 1559 1796 0 99.23 0.00
0.00 0.00 35 36 0.00 0.00 0.00 0.00 0.00 0.00
0.00 2.23 0.06 0.06
0 2 0 0.01 1500 1796 0 99.99
1 1 16 0.92 1694 1796 0 99.08 0.00
0.00 0.00 34
1 3 0 0.01 1378 1796 0 99.99
==Reproduce steps==
----------------------------
xinit &
glxgears &
./turbostat</pre>
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