Re: [Mesa-dev] [PATCH 6/7] vulkan: Add new VK_MESA_query_timestamp extension

Lionel Landwerlin writes: > I'm assuming the correlation is done outside the vulkan driver? With a > clock_gettime() maybe? > > If that's the case, I'm afraid this will be highly inaccurate. > The kernel might execute other tasks when the ioctl() happens and that

Re: [Mesa-dev] [PATCH 6/7] vulkan: Add new VK_MESA_query_timestamp extension

On 13/02/18 00:20, Dylan Baker wrote: Quoting Keith Packard (2018-02-09 20:45:15) This extension adds a single function to query the current GPU timestamp, just like glGetInteger64v(GL_TIMESTAMP, ). This function is needed to complete the implementation of GOOGLE_display_timing, which needs to