<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [GEN7/8] 1-10% perf drop on in offscreen benchmarks with "intel/isl: Only create a CCS buffer if the image supports rendering""
href="https://bugs.freedesktop.org/show_bug.cgi?id=101677">101677</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[GEN7/8] 1-10% perf drop on in offscreen benchmarks with "intel/isl: Only create a CCS buffer if the image supports rendering"
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr>
<tr>
<th>Version</th>
<td>git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>Drivers/DRI/i965
</td>
</tr>
<tr>
<th>Assignee</th>
<td>nanleychery@gmail.com
</td>
</tr>
<tr>
<th>Reporter</th>
<td>eero.t.tamminen@intel.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Performance in all (GPU bound) GLB 2.7 & GfxBench v4.0 offscreen benchmarks
dropped on 26th June, with a commit that ezbench bisected to:
-------------------------------------------------------
commit 8aaa13467dc289d35dc7900ab9fab9a7689c4178
Author: Nanley Chery <<a href="mailto:nanley.g.chery@intel.com">nanley.g.chery@intel.com</a>>
AuthorDate: Mon Mar 6 14:27:44 2017 -0800
Commit: Nanley Chery <<a href="mailto:nanley.g.chery@intel.com">nanley.g.chery@intel.com</a>>
CommitDate: Mon Jun 26 11:09:12 2017 -0700
intel/isl: Only create a CCS buffer if the image supports rendering
v2: Omit the commit message.
Signed-off-by: Nanley Chery <<a href="mailto:nanley.g.chery@intel.com">nanley.g.chery@intel.com</a>>
Reviewed-by: Iago Toral Quiroga <<a href="mailto:itoral@igalia.com">itoral@igalia.com</a>>
Reviewed-by: Jason Ekstrand <<a href="mailto:jason@jlekstrand.net">jason@jlekstrand.net</a>>
-------------------------------------------------------
On BDW GT3, GLB 2.7 Egypt offscreen test drops by ~10% and GLB 2.7 Fill
offscreen & GfxBench v4.0 Tessellation offscreen drop by ~7%.
Fairly similar drops are visible on BDW GT2 and somewhat smaller drops on BSW,
HSW GT2 and BYT.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
</ul>
</body>
</html>