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      <base href="https://bugs.freedesktop.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [GEN9+] 3-7% perf drop in SynMark2 v7 CSDof"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=110745">110745</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[GEN9+] 3-7% perf drop in SynMark2 v7 CSDof
          </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>intel-3d-bugs@lists.freedesktop.org
          </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>Mesa performance in SynMark2 v7 CSDof test dropped 3-7% on all our GEN9
devices.  

Setup:
- Ubuntu 18.04
- Unity / compiz desktop
- Mesa from git
- X server and drm-tip kernel from git within last 1-2 months, with modifier
support enabled
- FullHD monitor

Test-case:
- synmark2 OglCSDof
  (configured to run in fullscreen FullHD resolution.)

Regression happened between following commits:
* 2019-05-14 16:23:12 e81392868e: iris/resource: Drop redundant checks for aux
support
* 2019-05-15 04:34:49 a9cef4f0e5: gallium: Add default check for
PIPE_CAP_FRAGMENT_SHADER_INTERLOCK

Notes:
* There are a lot of compiler changes between these dates
* Only CSDof test performance changed, and only on GEN9 devices (not on GEN7-8
ones)</pre>
        </div>
      </p>


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