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fix #225: stabilize render pacing and frame CPU

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Replace scheduler-quantized software sleeps with a reusable Windows high-resolution deadline timer, expose pacing in the frame profiler, and make shutdown wake every persistent mesh worker without losing the shared signal.

Preserve retail alpha order while using a stable radix, skip duplicate deferred-alpha SSBO packing, pack light sets, cache static selection descriptors, and retire historical material groups at the whole-frame boundary. The fixed dense-Caul sample improved from roughly 9-12 ms CPU to 5.3-6.2 ms without reducing visual quality.

Release build succeeds with zero warnings and all 6,300 tests pass with five intentional skips. Three independent retail, architecture, and adversarial reviews are clean; the post-review connected route remains pending because local ACE is offline.

Co-authored-by: OpenAI Codex <codex@openai.com>
This commit is contained in:
Erik 2026-07-19 06:29:30 +02:00
parent 47d7086a74
commit 3718e341be
17 changed files with 1103 additions and 225 deletions
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10
tests/AcDream.App.Tests/FrameProfilerReportTests.cs
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@ -11,7 +11,13 @@ public class FrameProfilerReportTests
var cpu = new FrameStatsBuffer(16);
var gpu = new FrameStatsBuffer(16);
var alloc = new FrameStatsBuffer(16);
var stages = new[] { new FrameStatsBuffer(16), new FrameStatsBuffer(16), new FrameStatsBuffer(16) };
var stages = new[]
{
new FrameStatsBuffer(16),
new FrameStatsBuffer(16),
new FrameStatsBuffer(16),
new FrameStatsBuffer(16),
};
for (long i = 1; i <= 10; i++)
{
cpu.Push(i * 1000); // 1..10 ms in µs
@ -20,6 +26,7 @@ public class FrameProfilerReportTests
stages[0].Push(i * 200);
stages[1].Push(i * 50);
stages[2].Push(i * 10);
stages[3].Push(i * 300);
}
string line = FrameProfiler.FormatReport(
@ -33,6 +40,7 @@ public class FrameProfilerReportTests
Assert.Contains("alloc_kb p50=5.0 max=10.0", line);
Assert.Contains("gc=3/1/0", line);
Assert.Contains("upd p50=1.0", line); // stage 0: 200µs·5 = 1.0 ms
Assert.Contains("pace p50=1.5", line);
Assert.DoesNotContain(",0", line.Replace("gc=3/1/0", "")); // no comma decimals (invariant culture)
}