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Hash : cb9609fe
Author :
Date : 2018-12-26T00:52:44
Optimize glDrawElements performance A call to glDrawElements results in a calling depth of up to 4 * glDrawElements * gl::Context::DrawElements * rx::ContextGL::DrawElements * VertexArrayGL::syncDrawState. Each function call has to save/restore a lot of registers which results in a stall in the prologue of rx::ContextGL::DrawElements due to memory bandwidth limitations. The main change is the function gl::Context::DrawElements being inlined to reduce the calling depth by one. In addition the call to ContextGL::syncDrawElementsState is now protected so that it gets called only if it's required. Finally a few small getter functions have been inlined where the calling code was bigger than the actual function. In total this change improves performance of the DrawElementsPerfBenchmark.Run/gl benchmark by 16%. Bug: angleproject:2966 Change-Id: I423d18452f2f5b520ab52850fda2054e1da86991 Reviewed-on: https://chromium-review.googlesource.com/c/1389988 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Markus Tavenrath <matavenrath@nvidia.com>
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Files
- bmp_to_nv12.py
- bootstrap.py
- egl.xml
- egl_angle_ext.xml
- entry_point_packed_gl_enums.json
- gen_angle_gn_info_json.py
- generate_entry_points.py
- generate_loader.py
- generate_new_renderer.py
- generate_vulkan_layers_json.py
- gl.xml
- gl_angle_ext.xml
- msvs_projects.py
- perf_test_runner.py
- registry_xml.py
- remove_file_if_exists.py
- run_code_generation.py
- run_code_generation_hashes.json
- update_canary_angle.py
- vk_mandatory_format_support_capture_to_json.js
