vk_pipeline_cache: Fix unbounded memory growth during shader compilation #134

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Collecting merged 1 commit from fix-unbounded-memory into main

2026-02-11 15:21:31 -05:00

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2026-02-11 15:19:53 -05:00

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Previously, the emulator would only evict old shader pipelines from RAM when the GPU's VRAM was exhausted (VK_ERROR_OUT_OF_DEVICE_MEMORY).

This caused a significant memory leak on systems with ample VRAM but limited system RAM, as the shader cache could grow indefinitely during gameplay, leading to OOM crashes.

This commit introduces a hard limit (MAX_PIPELINES_IN_RAM = 4096) on the number of pipelines kept in host memory. When this limit is reached, EvictOldPipelines() is triggered proactively to free up resources, ensuring stable memory usage.

Previously, the emulator would only evict old shader pipelines from RAM when the GPU's VRAM was exhausted (VK_ERROR_OUT_OF_DEVICE_MEMORY). This caused a significant memory leak on systems with ample VRAM but limited system RAM, as the shader cache could grow indefinitely during gameplay, leading to OOM crashes. This commit introduces a hard limit (MAX_PIPELINES_IN_RAM = 4096) on the number of pipelines kept in host memory. When this limit is reached, EvictOldPipelines() is triggered proactively to free up resources, ensuring stable memory usage.

Collecting added 1 commit

2026-02-11 15:19:53 -05:00

vk_pipeline_cache: Fix unbounded memory growth during shader compilation 65280c707c