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milescovielloandClaude Opus 5.5
8868e09624
Every shader source keeps up to 256 materialized results of Recompile(request, capture) in its result memo, and as many patch recipes in its masked memo, with no limit on their bytes. In Ghost of Tsushima's opening the memos held about 500 MiB after 5 minutes and kept growing, at a 13 % hit rate. Each memo entry now counts the bytes its result's vectors keep (the bindings' vectors included; the module is shared with the prepared module cache), plus its patch recipe in the masked memo. A result held by both tables counts once in each. Past a budget, 256 MiB unless APS5_RESULT_MEMO_MB sets another (0 sets none), the least recently used entries of both tables of all sources are dropped until three quarters of the budget is left. The recency stamps come from one clock for all sources and both tables so they compare across them. The profile line also reports the trimmed and held entries and their MiB. The trim takes its lock blocking and repeats, re-reading the bytes held, until they are within the budget, so the insertion that pushed them over has its trim run after any other; it stops when nothing is left to drop. SetResultMemoBudget and ResultMemoBytes let agc_shader_result_memo_budget check that a memo over its budget keeps the most recently used results and drops the oldest one, with the masked memo off. A one-shot hook inside the trim (SetResultMemoTrimHook) lets agc_shader_result_memo_budget_threads insert two results from other threads after the trim has read the bytes held: the memo must still end within its budget. agc_shader_result_memo_budget_masked, with the masked memo on, checks that a first result counts its masked entry too and that a trim empties the masked memo. Co-Authored-By: Claude Opus 5.5 <[email protected]>