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perf(webgpu): stop reserving GPU memory in 128-256 MiB blocks #215

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Merged
triniwiz merged 1 commit into from
Nov 14, 2026
Merged

perf(webgpu): stop reserving GPU memory in 128-256 MiB blocks #215

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5 changes: 4 additions & 1 deletion crates/canvas-c/src/webgpu/gpu_adapter.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -176,7 +176,10 @@ pub extern "C" fn canvas_native_webgpu_adapter_request_device(
label: label.clone(),
required_features: features,
required_limits: limits,
memory_hints: Default::default(),
// Exact-size allocations for large resources, as Dawn makes. The default hints
// sub-allocate from 128-256 MiB blocks that count as graphics memory in full: a fresh
// device reserved 192 MiB, and a 4K texture with mips about 128 MiB.
memory_hints: wgt::MemoryHints::MemoryUsage,
default_queue: wgt::QueueDescriptor { label: None },
trace: Default::default(),
experimental_features: Default::default(),
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