[Bug 99459] Performace drop on AMD TONGA(380x) on kernels 4.9 and 4.10RC3

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99459

            Bug ID: 99459
           Summary: Performace drop on AMD TONGA(380x) on kernels 4.9 and
                    4.10RC3
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: somebody1121 at gmail.com

Created attachment 129046
  --> https://bugs.freedesktop.org/attachment.cgi?id=129046&action=edit
Performance drop

Performance drop beyond kernel 4.8 on games like alien isolation(heavy fps
drop), pillars of eternity or tomb raider due to higher cpu usage. GPU AMD
TONGA, latest mesa-git, xorg 1.19.1.

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