| Bug ID | 101278 |
|---|---|
| Summary | Severe slowdown on Shadow of Mordor between 17.1.0 and 17.1.1 |
| Product | Mesa |
| Version | 17.1 |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | Drivers/Gallium/radeonsi |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | nagrigoriadis@gmail.com |
| QA Contact | dri-devel@lists.freedesktop.org |
Shadow of Mordor slowed down significantly for me on my notebook between Mesa 17.1.0 and 17.1.1 My system: Gentoo Linux 64-bit Dell Precision M4700 Intel i7-3720QM quad-core 16 Gig RAM AMD FirePro M4000 (Cape Verde, 512su, 1GB DDR5 RAM, 675Mhz) I then did a bisect to find the commit where the slowdown happened (used the built-in benchmark tool manually, some custom medium-low settings): 35ec26bb00536639b9571f31d8e3f2bcbcfc32fb 30.31fps ad3b5b7f5f7590fd4359ea3483e2309e4cebc472 18.12fps So the commit that causes the big slowdown: https://cgit.freedesktop.org/mesa/mesa/commit/?h=17.1&id=ad3b5b7f5f7590fd4359ea3483e2309e4cebc472 seems to be specific to SI, but appears to fix an issue in tessellation. I double-checked, and tessellation is off in the game settings, so I'm surprised this caused a performance difference.
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