[Bug 110781] Radeon: heavy r300 performance drop regression between 11.x and 19.x

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110781

--- Comment #38 from Richard Thier <u9vata at gmail.com> ---
Hello everyone!

While hopefully someone is testing Marek's solution as I went to test if the
"minor problem" between 04ea03d99d8 and 19.x is causing a slowdown or not.

Despite most of the heavy slowdown went away now, I am still unsure if the more
ioctl calls in later versions (let's call it ioctl spamming) can cause a
slowdown in cases or not so I plan to compare performance of more heavy games
between a patched 19.x and the last working 17.x just to see how it is and
maybe start bisecting from 04ea03d99d8 if there is still a slowdown.

It just bugs me as a bad feeling so I want to be sure with heavier games than
extreme tux racer...

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