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products/Sources/formale Sprachen/C/Firefox/dom/webgpu/tests/mochitest/ (Firefox Browser Version 153.0.1^©) Datei vom 27.6.2026 mit Größe 2 kB

Quelle test_queue_write_perf.html

Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/webgpu/tests/mochitest/test_queue_write_perf.html

<!doctype html>
<html>
  <head>
    <meta charset="utf-8" />
    <script src="/tests/SimpleTest/SimpleTest.js"></script>
    <link rel="stylesheet" href="/tests/SimpleTest/test.css" />
  </head>

  <body>
    <script type="text/javascript">
      "use strict";

      var perfMetadata = {
        owner: "Graphics Team",
        name: "Queue Write",
        description:
          "Test the performance of Queue.writeBuffer and Queue.writeTexture",
        test: "mochitest",
        options: {
          default: {
            perfherder: true,
            perfherder_metrics: [
              { name: "writeBuffer Time", unit: "ms" },
              { name: "writeTexture Time", unit: "ms" },
            ],
            manifest: "perftest.toml",
            manifest_flavor: "plain",
          },
        },
      };

      const iters = 100;

      ok(
        SpecialPowers.getBoolPref("dom.webgpu.enabled"),
        "WebGPU pref should be enabled."
      );

      async function runTest() {
        const adapter = await navigator.gpu.requestAdapter();
        const device = await adapter.requestDevice();
        device.onuncapturederror = function (e) {
          ok(false, "WebGPU error: " + e.error.message);
        };
        const buffer = device.createBuffer({
          size: 1024 * 1024,
          usage:
            GPUBufferUsage.COPY_DST |
            GPUBufferUsage.COPY_SRC |
            GPUBufferUsage.VERTEX,
        });
        const arrayBuf = new ArrayBuffer(256 * 1024 * 1024);
        new Int32Array(arrayBuf).fill(0x55);

        performance.mark("start writeBuffer");
        for (var i = 0; i < iters; i++) {
          device.queue.writeBuffer(buffer, 0, arrayBuf, 0, 1024 * 1024);
        }
        const writeBufferTime = performance.measure(
          "writeBuffer",
          "start writeBuffer"
        ).duration;

        const texture = device.createTexture({
          size: [512, 512, 1],
          dimension: "2d",
          format: "rgba8unorm",
          usage: GPUTextureUsage.COPY_DST | GPUTextureUsage.COPY_SRC,
        });

        performance.mark("start writeTexture");
        for (i = 0; i < iters; i++) {
          device.queue.writeTexture(
            { texture },
            arrayBuf,
            { bytesPerRow: 2048 },
            [512, 512, 1]
          );
        }
        const writeTextureTime = performance.measure(
          "writeTexture",
          "start writeTexture"
        ).duration;

        ok(device !== undefined, "");
        info(
          "perfMetrics",
          JSON.stringify({
            "writeBuffer Time": writeBufferTime,
            "writeTexture Time": writeTextureTime,
          })
        );
      }

      SimpleTest.waitForExplicitFinish();

      runTest()
        .catch(e => ok(false, "Unhandled exception " + e))
        .finally(() => SimpleTest.finish());
    </script>
  </body>
</html>

Messung V0.5 in Prozent

¤ Dauer der Verarbeitung: 0.4 Sekunden ¤

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