LL perf (Objects/world): VOCache containers #321

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opened 2026-10-04 14:09:19 +00:00 by sky_line · 0 comments

sky_line commented

2026-10-04 14:09:19 +00:00

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From the LL-origin inefficiency audit (finding O15). File/line references are from commit 0229f8872c; re-locate them before working.

VOCache containers

mCacheMap is a std::map (llvocache.h:162).
mWaitingList and mVisibleGroups are ordered sets rebuilt per region per frame (llviewerregion.cpp:1399-1495, 1614-1678; llworld.cpp:699-772).
Fix: unordered_map; reusable vectors plus nth_element; skip the walk when the camera is still.
Confirmed. M.

Verify the cost (profile or timer) before and after changing it.

From the LL-origin inefficiency audit (finding O15). File/line references are from commit 0229f8872c; re-locate them before working. **VOCache containers** - `mCacheMap` is a `std::map` (`llvocache.h:162`). - `mWaitingList` and `mVisibleGroups` are ordered sets rebuilt per region per frame (`llviewerregion.cpp:1399-1495, 1614-1678`; `llworld.cpp:699-772`). - **Fix:** `unordered_map`; reusable vectors plus `nth_element`; skip the walk when the camera is still. - Confirmed. M. Verify the cost (profile or timer) before and after changing it.

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