tests: Vendor blink perf tests (#38654)

Vendors the [blink perf tests](https://chromium.googlesource.com/chromium/src/+/HEAD/third_party/blink/perf_tests/). These perf tests are useful to evaluate the performance of servo. The license that governs the perf tests is included in the folder. Running benchmark cases automatically is left to future work. The update.py script is taken from mozjs and slightly adapted, so we can easily filter (and patch if this should be necessary in the future. Testing: This PR just adds the perf_tests, but does not use or modify them in any way. --------- Signed-off-by: Jonathan Schwender <schwenderjonathan@gmail.com>
2025-09-11 15:38:24 +01:00 · 2025-08-17 11:54:04 +02:00 · 2025-08-17 11:54:04 +02:00 · ee781b71b4
commit ee781b71b4
parent 7621332824
648 changed files with 359694 additions and 0 deletions
--- a/tests/blink_perf_tests/perf_tests/webgpu/binding-setBindGroup.html
+++ b/tests/blink_perf_tests/perf_tests/webgpu/binding-setBindGroup.html
@ -0,0 +1,110 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+  <title>
+    Test CPU performance of the GPURenderPassEncoder.setBindGroup binding
+  </title>
+  <script src="../resources/runner.js"></script>
+  <script src="./resources/webgpu-perf-utils.js"></script>
+</head>
+
+<body>
+  <canvas id="canvas" width=400 height=400></canvas>
+  <script>
+    (async () => {
+      const adapter = navigator.gpu && await navigator.gpu.requestAdapter();
+      if (!adapter) {
+        return skipTest('WebGPU not supported');
+      }
+
+      const device = await adapter.requestDevice();
+      const canvas = document.getElementById('canvas');
+      const context = canvas.getContext('webgpu');
+      const contextFormat = navigator.gpu.getPreferredCanvasFormat();
+
+      context.configure({
+        device,
+        format: contextFormat,
+      });
+
+      const pipeline = await device.createRenderPipelineAsync({
+        layout: 'auto',
+        vertex: {
+          module: device.createShaderModule({
+            code: `
+              @group(0) @binding(0) var<storage, read> pos : array<vec2f, 3>;
+
+              @vertex
+              fn main(@builtin(vertex_index) VertexIndex : u32) -> @builtin(position) vec4<f32> {
+                return vec4f(pos[VertexIndex], 0.0, 1.0);
+              }`
+          }),
+        },
+        fragment: {
+          module: device.createShaderModule({
+            code: `
+              @fragment
+              fn main() -> @location(0) vec4f {
+                return vec4f(0.0, 1.0, 0.0, 1.0);
+              }`
+          }),
+          targets: [{
+            format: contextFormat,
+          }],
+        },
+      });
+
+      const renderPassDescriptor = {
+        colorAttachments: [{
+          view: undefined,
+          loadOp: 'clear',
+          clearValue: { r: 0.0, g: 0.0, b: 0.0, a: 1.0 },
+          storeOp: 'store',
+        }],
+      };
+
+      const posBuffer = device.createBuffer({
+        size: Float32Array.BYTES_PER_ELEMENT * 2 * 3,
+        mappedAtCreation: true,
+        usage: GPUBufferUsage.STORAGE,
+      });
+      new Float32Array(posBuffer.getMappedRange()).set([
+        0.0, 0.5,
+        -0.5, -0.5,
+        0.5, -0.5,
+      ]);
+      posBuffer.unmap();
+
+      const bindGroup = device.createBindGroup({
+        layout: pipeline.getBindGroupLayout(0),
+        entries: [{
+          binding: 0,
+          resource: { buffer: posBuffer },
+        }],
+      });
+
+      const iterations = 10000;
+      PerfTestRunner.measureInnerRAFTime({
+        description: `CPU time for ${iterations} calls to GPURenderPassEncoder.setBindGroup`,
+        warmUpCount: 100,
+        run() {
+          const commandEncoder = device.createCommandEncoder();
+          renderPassDescriptor.colorAttachments[0].view = context.getCurrentTexture().createView();
+
+          const passEncoder = commandEncoder.beginRenderPass(renderPassDescriptor);
+          passEncoder.setPipeline(pipeline);
+          for (let i = 0; i < iterations; ++i) {
+            passEncoder.setBindGroup(0, bindGroup);
+          }
+          passEncoder.draw(3, 1, 0, 0);
+          passEncoder.end();
+
+          device.queue.submit([commandEncoder.finish()]);
+        }
+      });
+    })();
+  </script>
+</body>
+
+</html>