Hi Pierre, On Tue, Sep 5, 2017 at 11:15 PM, Pierre-Loup A. Griffais <pgriff...@valvesoftware.com> wrote: > Hi Daniel, > > In the past couple of months we've been working on gpuvis, a GPU tracing > tool similar to GPUView on Windows. It's lower level than other API-based > tracing tools and lets you debug system-wide GPU scheduling issues, eg. > interaction between several processes using the GPU, which is pretty > critical for VR usecases. > > It's all based on ftrace; we've initially developped it with support for > amdgpu, and had to patch the kernel code there to change what tracing events > are reported and how. Now that we have a good idea of what's needed and it's > more or less proven in production, we were wondering if you had any interest > in adding a similar set of events for Intel GPUs so we could read them and > present them the same way? We have pretty specific requirements, but this > work-in-progress documentation should give a good idea of what they are: > > https://github.com/mikesart/gpuvis/wiki/Overview > > More raw details here: > > https://github.com/mikesart/gpuvis/wiki/TechDocs > > Even though VR is not really a factor there yet, we think supporting Intel > GPUs could be interesting to your userspace driver devs. That tool is > growing quite useful. We're also working with NVIDIA devs to get us similar > data exposed from their stack, so it'd be good if gpuvis could 'just work' > on all systems going forward. > > (Ian Romanick suggested I reach out to you first, but if you have a > different set of people that should be included feel free to add them)
Yeah I'm not exactly the tracing/perf guy around here :-) Adding relevant people who should be able to point you in a useful direction. We already have a pile of tracepoints and there's patches floating for global perf PMUs, but not sure what exactly you need. Also adding mailing lists, better to discuss stuff in public. Thanks, Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
