This gives a nice boost, +20% at this time on my Vega 56. Shader ballot should be enabled by default at some point but it reduces performance a bit (-6%) with Wolfeinstein II. Enable it only for Youngblood at the moment, like what we did for Talos in the past.
As a bonus point, it gets rid of some minor artifacts that only happens when ballot is disabled for some reasons. Signed-off-by: Samuel Pitoiset <[email protected]> --- src/amd/vulkan/radv_device.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c index 49518d43218..c04f6a27e82 100644 --- a/src/amd/vulkan/radv_device.c +++ b/src/amd/vulkan/radv_device.c @@ -554,6 +554,14 @@ radv_handle_per_app_options(struct radv_instance *instance, */ if (HAVE_LLVM < 0x900) instance->debug_flags |= RADV_DEBUG_NO_LOAD_STORE_OPT; + } else if (!strcmp(name, "Wolfenstein: Youngblood")) { + if (!(instance->debug_flags & RADV_DEBUG_NO_SHADER_BALLOT)) { + /* Force enable VK_AMD_shader_ballot because it looks + * safe and it gives a nice boost (+20% on Vega 56 at + * this time). + */ + instance->perftest_flags |= RADV_PERFTEST_SHADER_BALLOT; + } } } -- 2.22.1 _______________________________________________ mesa-dev mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-dev
