WebGPU Fuzzing Test
Generate controlled, randomized WebGPU compute and render workloads to evaluate GPU pipeline robustness, shader compiler stability, and API validation integrity.
Detecting active hardware adapter and driver features...
Ready to Fuzz WebGPU
Stress compute dispatch queues, render pipelines, and shader compilation with pseudo-random workloads.
Workload Parameters
Bounded Pseudo-RandomReal-Time Execution Telemetry
Error & Robustness Monitor (0)
Captured validation failures, compiler warnings, and device lost events
| Iter | Workload | Category | Timestamp | Message |
|---|---|---|---|---|
| No errors or warnings recorded. | ||||
Iteration Duration (ms)
Execution latency across randomized workloads
Workload Success vs. Failure Distribution
Proportional outcome of generated test cases
WebGPU Fuzzing Test Complete
Calculated from native WebGPU error scopes and iteration timings.
How WebGPU Fuzzing Works
Understanding the automated pipeline that exercises driver compilers, buffers, and compute passes.
Deterministic PRNG
A reproducible pseudo-random number generator (Mulberry32) creates controlled test sequences from a fixed seed, ensuring identical workload streams between diagnostic runs.
Dynamic WGSL Compute
The engine synthesizes mathematical stress algorithms (sine, cosine, fractal iterations, matrix transformations) dispatched across WebGPU storage buffers and workgroup invocations.
Randomized Render Passes
Constructs varied render pipelines and fragment shaders with randomized coordinate and color modulations, testing raster ALUs and render target blits.
Texture Allocation & Sampling
Allocates diverse 2D texture dimensions (128×128 to 512×512), writes raw pseudo-random pixel arrays, and exercises texture-to-render-target transition barriers.
Shader Compiler Stress
Rapidly creates and destroys unique WGSL shader modules to evaluate driver JIT compilation performance, pipeline caching, and memory reclamation.
Hardware Error Scopes
Each iteration is enclosed in pushErrorScope('validation') and pushErrorScope('out-of-memory') blocks, intercepting driver warnings before device loss occurs.
What This Test Can Detect
Key graphics driver, API, and memory anomalies exposed by pseudo-random stress workloads.
API Validation Failures
Detects misaligned buffer offsets, invalid bind group layouts, unsupported texture formats, and pipeline descriptor incompatibilities.
WGSL Compiler Regressions
Catches syntax compilation errors, type deduction faults, and workgroup size boundary issues across browser WebGPU backends (Dawn/wgpu).
GPU Device Loss & TDRs
Monitors Timeout Detection and Recovery (TDR) crashes where long-running compute dispatches cause the OS graphics subsystem to reset the adapter.
VRAM Heap Fragmentation
Rapid allocation and destruction of storage and uniform buffers reveals memory leaks, allocation stalls, and Out-of-Memory (OOM) bottlenecks.
Frequently Asked Questions
Common technical questions regarding WebGPU fuzzing, WGSL compilation, and driver robustness.
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