[Bug 102995] [BAT] igt at gem_mmap_gtt@basic-wc - Failed assertion: gtt_writes > cpu_writes/2

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102995

Elizabeth <elizabethx.de.la.torre.mena at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|CLOSED                      |REOPENED
         Resolution|WORKSFORME                  |---

--- Comment #6 from Elizabeth <elizabethx.de.la.torre.mena at intel.com> ---
On QA BYT the issue still exists, not sure what's different.
$ : time sudo -E ./gem_mmap_gtt --r basic-wc
IGT-Version: 1.20-g9fe5a9a (x86_64) (Linux:
4.14.0-rc8-drm-intel-qa-ww45-commit-b911f67+ x86_64)
(gem_mmap_gtt:6261) CRITICAL: Test assertion failure function test_wc, file
gem_mmap_gtt.c:286:
(gem_mmap_gtt:6261) CRITICAL: Failed assertion: gtt_writes > cpu_writes/2
(gem_mmap_gtt:6261) CRITICAL: Write-Combined writes are expected to be roughly
equivalent to WB writes: WC (gtt)=2623.16MiB/s, WB (cpu)=5517.15MiB/s

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