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authorVito Caputo <vcaputo@pengaru.com>2023-06-19 17:32:52 -0700
committerVito Caputo <vcaputo@pengaru.com>2023-06-19 17:48:47 -0700
commitfd727b42f29074290f41142016a7b5157b7bca56 (patch)
tree3c7d36af2fe1d09e1d7fb7647b03ce4555768d09 /src/modules/mixer
parenta2f7397d289a21d1077c205e1d3c2beee7b39ac4 (diff)
mem_fb: keep spare pages on a free list
Snapshotting made page alloc/free more frequent, and modules/mixer really hammers on snapshots in fade mode... drizzle as well, but mixer snapshots both module outputs per frame. So by keeping these around the reclaimed page snapshots can be held onto at within the fb as spares for quicker allocation. In practice it should just hit a high water mark of a working set for spare pages, once in a steady state, assuming snapshots aren't leaking. Future commits will replicate this change in {drm,sdl}_fb
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