diff options
| author | kwg <kwg@web> | 2015-11-23 13:46:45 -0800 |
|---|---|---|
| committer | dri <iki-dri@freedesktop.org> | 2015-11-23 13:46:45 -0800 |
| commit | e584c4691f9612a78dd82df9705d37c927aca338 (patch) | |
| tree | d6f03bdce6686d9ca31ab29ff7e248d9768974b0 /I965Todo.mdwn | |
| parent | 377b5ebe7dcba4ecff1e45b4a4addd9d18bf805d (diff) | |
Mention that HiZ may not be useful on Ironlake
Diffstat (limited to 'I965Todo.mdwn')
| -rw-r--r-- | I965Todo.mdwn | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/I965Todo.mdwn b/I965Todo.mdwn index d015f5f..700eea7 100644 --- a/I965Todo.mdwn +++ b/I965Todo.mdwn @@ -135,8 +135,9 @@ to a surface, like the gen6 code does. [You also have to do the accounting yours ### Port HiZ support to gen5 (hard). -It should be worth a 10-20% performance boost on most apps, but expect -a lot of work in getting piglit fbo-depthstencil tests working. +On Sandybridge, this was worth a 10-20% performance boost on most apps. However, there are rumors that Gen5 hardware limitations may make HiZ not actually beneficial at all. Expect a lot of work in getting piglit fbo-depthstencil tests working. + +Gen4 hardware does not support HiZ at all. ### Use transposed URB reads on g4x (moderate). |