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fix(render): keep a canvas's GPU cache at 256 MB or more - #31
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This was referenced Nov 10, 2026
A canvas's GPU cache was capped at the image budget, 64 MB by default. It also holds every frame's path geometry, and 10,000 paths need about 86 MB, so the geometry was evicted and rebuilt every frame. A larger image budget still raises the cache; resources unused for 120 frames are freed as before.
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Stacked on #30.
A canvas's GPU cache was capped at the image budget, 64 MB by default. It also holds every frame's path geometry; 10,000 paths need about 86 MB, so the geometry was evicted and rebuilt every frame, and tgfx fell below skia at that count.
The cache is now
max(image budget, 256 MB). A larger image budget still raises it; resources unused for 120 frames are freed as before.Samsung SM-E146B, 10,000 paths, two runs each:
No other row moved beyond noise. Full before/after tables are in #32.