On Thursday, May 4, 2017 7:46:34 PM PDT Dmitry Rogozhkin wrote: > > On 5/4/2017 9:51 AM, Kenneth Graunke wrote: > > MediaSDK is not a benchmark. If I'm not mistaken, it's a userspace > > driver produced by Intel engineers, one which Intel has the full > > capability to change. What you're saying is that Intel's MediaSDK > > engineers are unwilling to change their software to provide better > > performance for their Linux users. > > > > That's pretty mental. > You are mistaken. Media SDK is not a driver. It is a user space library > which talks to the user space driver. And Media SDK does not set _any_ > caching policies you are discussing here. That's the driver who sets > these policies. I don't want to go further here who supports this > driver, Intel or not, but there are mediasdk engineers whom you blame to > not willing to do something and who actually only indirectly are related > to this topic. Please, if you mean driver, say a driver.
Sorry, that's my mistake - and I think a number of other people in the thread were similarly confused. So, the suggestion isn't to change MediaSDK at all - it's to change the closed-source libva driver that's setting MOCS values that aren't supported by the upstream kernel. IIRC the upstream libva-intel-driver does not have this bug. My point largely stands, when redirected - someone is developing a broken closed source userspace driver and is apparently unwilling to change it. That's the real problem.
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