[Mesa-dev] [Bug 99618] AVX Intrinsics Run in GUI thread only

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99618

            Bug ID: 99618
           Summary: AVX Intrinsics Run in GUI thread only
           Product: Mesa
           Version: 13.0
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Drivers/Gallium/swr
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: chris at circlecvi.com
        QA Contact: mesa-dev at lists.freedesktop.org

I have been implementing a couple of threaded algorithms using
QtConcurrent::blockingMap(indices, Functor).

The functor utilizes AVX/AVX2 instructions for completing the algorithm.

Using the Gallium driver on LLVMPipe, all 8 of my CPU cores are being used
during the algorithm. When I switch to Gallium driver on swr, the CPU0 is the
only cpu being utilized during the algorithm. Only thing different is the
driver.

Any ideas?

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