<div dir="ltr"><div>Ok, with the workaround I can see the scene and the frame times are absolutely fantastic. Thank you so much once again for this find! Now I can close all 110 of my Chrome tabs :)</div><div><br></div><div>Best regards,</div><div>George</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Apr 7, 2023 at 5:34 PM Mike Blumenkrantz <<a href="mailto:michael.blumenkrantz@gmail.com">michael.blumenkrantz@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">You can try deleting the lvp_find_inlinable_uniforms() call from lvp_pipeline.c as a temporary workaround. I'll try something on my end to make this less stupid.<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Apr 7, 2023 at 10:22 AM George Karpathios <<a href="mailto:gkarpa1@gmail.com" target="_blank">gkarpa1@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Awesome, thanks for the tip! </div><div><br></div><div>Well now I indeed get <b>very</b> nice frame times. Great catch, thank you! But I don't see anything on the viewport, I guess due to the early return. How should I proceed?</div><div><br></div><div>Best regards,</div><div>George</div><div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Apr 7, 2023 at 4:56 PM Mike Blumenkrantz <<a href="mailto:michael.blumenkrantz@gmail.com" target="_blank">michael.blumenkrantz@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Looks like it's compiling a lot of shader variants.<div><br></div><div>You could try adding a return at the top of update_inline_shader_state() to see if it's trying too hard to inline.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Apr 7, 2023 at 9:53 AM George Karpathios <<a href="mailto:gkarpa1@gmail.com" target="_blank">gkarpa1@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hi again, thank you Adam & Marek for your feedback! I appreciate it.</div><div><br></div><div>Unfortunately It's the same amount of time even if I skip the swapchain. I have profiled some seconds of the execution using Visual Studio's profiler (with the swapchain, normally) while panning an almost empty scene, and it's identifying a hotpath. I have uploaded 2 screenshots of the call tree at <a href="https://imgur.com/a/cxtXdOz" target="_blank">https://imgur.com/a/cxtXdOz</a> if you'd like to check it out.</div><div><br></div><div>Another thing I'd like to note is that by using Mesa 23.1-dev (instead of 23.0.1) I got a nice performance boost of ~2-3x. However it's still performing slower than what I'd expect on this system (right now it takes 60ms for 10 lines so I feel that something weird is still going on). Big congratulations on your tremendous work anyway.</div><div><br></div><div>Best regards,</div><div>George</div><div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 4, 2023 at 9:24 PM Adam Jackson <<a href="mailto:ajax@redhat.com" target="_blank">ajax@redhat.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div></div><div>My first suspicion would be to rule out window system interaction. If you render to your own VkImage instead of to a swapchain, how fast can you go?</div><div><br></div><div>- ajax<br></div></div><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 4, 2023 at 12:56 PM George Karpathios <<a href="mailto:gkarpa1@gmail.com" target="_blank">gkarpa1@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi list, I hope all is well.<div><br></div><div>I would like to ask if there are any known issues regarding the performance of Lavapipe in Windows 10.</div><div><br></div><div>I'm trying to add support for Vulkan software rendering into a relatively large 3d modeling/rendering application, so I opted to try Mesa and Lavapipe. I built LLVM 16.0.0 and Mesa 23.0.1 using the documentation (thanks for that!). My environment is an 8-core Intel i7 (with an integrated iGPU) with 32GiB RAM, an nVidia RTX 3070 and Visual Studio 2019/MSVC.</div><div><br></div><div>The build procedure seems to be ok (Release builds, proper linking with either MT or MD runtime libraries, proper DLL loading via VK_ICD_FILENAMES) but the performance I'm getting during runtime is very slow. It looks like it needs 1-1.5 seconds to render a virtually empty scene (think just a floor grid of lines) and over 15-20 seconds for a frame of a few thousand vertices. The CPU utilisation also seems to be low, under 20-25%.</div><div><br></div><div>I understand that the information I provide is probably vague, but at this point I just want to rule some probable causes out, like is there any version of LLVM or Mesa or combination of them that is known to have such issues? Maybe some build/installation configuration parameter or environment variable that is important in Windows specifically and I may have missed (I tried tweaking LP_NUM_THREADS but didn't change anything) ? Anything that could point me in the right direction is highly valuable & appreciated.</div><div><br></div><div>Also probably worth noting is the fact that the vkcube(pp) demo from the Vulkan SDK seems to run ok with Lavapipe, but in this case I also notice (in task manager) a ~50% utilization of the integrated iGPU (why?). In the aforementioned larger application I don't notice any usage of the integrated iGPU.</div><div><br></div><div>Any advice on what I could check/double check is more than welcome. Thank you in advance for your time.</div><div><br></div><div>Best regards,</div><div>George</div><div><br></div><div><br></div></div> </blockquote></div> </blockquote></div></div> </blockquote></div> </blockquote></div></div> </blockquote></div> </blockquote></div></div>