Bug 97494 - Tonga vce perf regression since drm/amdgpu: add vce bypass mode for tonga.
Summary: Tonga vce perf regression since drm/amdgpu: add vce bypass mode for tonga.
Status: RESOLVED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/AMDgpu (show other bugs)
Version: DRI git
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Default DRI bug account
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Reported: 2016-08-26 12:05 UTC by Andy Furniss
Modified: 2016-09-15 09:18 UTC (History)
0 users

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Description Andy Furniss 2016-08-26 12:05:35 UTC 
R9285 agd5f drm-next-4.9-wip since 

commit c04399f19436616875879ee2711c5b78a90dd1b0
Author: Rex Zhu <Rex.Zhu@amd.com>
Date:   Thu Aug 18 18:27:14 2016 +0800

    drm/amdgpu: add vce bypass mode for tonga.
    
    fix issue that encode test failed on the second time when
    vce dpm enabled on tonga.

vce clocks seem stuck low, forcing gpu perf to high doesn't help.

500 frames 2160p nv12 from/to ram.

omx 8 seconds -> 35

vaapi 12 seconds -> 51
Comment 1 Andy Furniss 2016-09-15 09:18:26 UTC 
Working OK with current agd5f drm-next-4.9-wip

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