Files
NX2navi/runtime
tangerineturtle1 589c9e8654 Stop the replay from searching the environment on every draw, remember setting lookups, and spread texture streaming over more frames.
The draw path called getenv("NX2NAVI_SKIP_PROG") for each of ~2,000 draws a frame, and getenv walks the whole environment block: in a replay-thread profile it was a sixth of the samples. That switch, the polygon offset log and the ASTC alpha probe now read the environment once. The replay's cost per draw went from 3.7-5.0 us to 1.2-2.8 us in play, and the mean frame rate by minute from 60-131 fps to 103-243 fps (different places in each run, so the figures are approximate).

cfg_get and cfg_value keep each thread's answers per name until the settings version changes (cfg_set, cfg_reset, cfg_load, and cfg_setenv, which the code that sets NX2NAVI_ variables in the process's own environment now uses); NX2NAVI_CFG_MEMO=0 asks every time.

The texture pool creates at most pool_create_budget (NX2NAVI_POOL_CREATE_BUDGET, default 16, was a fixed 64) new texture entries per refresh. The refresh holds the texture lock throughout, and streaming new textures in made 20-40 ms frames; at 16 the lock was held 5 ms per slow frame instead of 24 in a dense area, and the frames over 25 ms in a heavy minute fell from 111-188 to 89, with no pop-in seen.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-09 08:09:26 -05:00
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