[Bug 82050] R9270X pyrit benchmark perf regressions with latest kernel/llvm

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=82050

--- Comment #30 from Mathieu Belanger <b747xx at gmail.com> ---
Yes.

Minecraft is unplayable with latest Kernel+latest Mesa.

In the beginning, it's smooth.. after 30 sec or so it start to stuter a
little... By the five minutes mark. if you move in the game, it pause for like
5 to 7 seconde, move for 2 secondes, pause for 5 secondes...

By pause I mean the whole system pause, mouse, other terminals.. Everything.

I think it's related to this bug, it started with the kernel 3.17 (Like the OP,
I did update mesa, llvm, libdrm, glamor...)

going back to 3.16 did not fix it, I got to downgrade Mesa and LLVM too (to the
first relase of the first of this month to be sure) and after that, I played
for like 4 hours without any issue.

I tried to revert 150ac07b855b5c5f879bf6ce9ca421ccd1a6c938 but I got massive
gfx corruptions.

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