Ocarina of Time's prewarm list gets the pipelines of first looks at new places and of an iPad's own lists: on iOS, where each pipeline no list names is built at its first draw (0.1-0.9 s on an iPad Pro M5), Hyrule Field built 344 render pipelines in play and the forest bridge 362 with the iPad's lists alone; on a Mac with the rows 0 and 5

dm/games/0400486024DEC000/README.md

@@ -48,7 +48,7 @@ Measured on an M6 Mac with 16 GB, headless, on one walk with camera turns (`walk
 - Open: frames of 100–650 ms when an area first loads (640 first uploads, 321 MB, in one frame of 294 ms; another 640 ms of submit with 68 MB).
 - `DM_NVN_TBDR=1` was tried and does not help: p95 19 ms on the same walk, against 17.8.
 - The first long run on a new chain is slower (p50 60–114 ms), while `MTLCompilerService` compiles pipelines; the next run is not.
-- [`pso_manifest.tsv`](pso_manifest.tsv) seeds the [prepare step](../../../docs/development.md#the-prepare-step) of a first start: 9,625 rows (8,376 shaders, 1,112 render and 137 compute pipelines) recorded on an M3 Pro Mac (macOS 27.2) with no lists present, over boot, the title and its movie, a new game and the opening, Link's house, Kokiri Forest and a save load ([PR 1493](https://github.com/seedds/nxnative/pull/1493)), and five compute pipelines Saria's greeting builds (Deku Scrub, Business Scrub, Deku Baba), found in [PR 1488](https://github.com/seedds/nxnative/pull/1488). With the list empty, a first start with a cold Metal shader cache showed a black picture with the title music for minutes: one title frame built 11 pipelines and loaded 12 shader libraries in 252.6 s on that Mac ([issue 1477](https://github.com/seedds/nxnative/issues/1477)). Before compute pipelines were in the offline archive, a true first start with the list prepared for 134.7 s on an M4 MacBook Air and then had no frame over 0.25 s to a save load. Open: the first start has not been measured with the archive's compute pipelines, nor on iOS, where this game has no bundled archive (no `pso_mtl4`) and the list is all a first start has; the render bases the `R` rows need are not in the offline archive. A longer list from hours of iPad play (PR 1488, 9,789 rows) prepared 16 s longer on that MacBook and avoided only 7 render builds that made no frame over 100 ms.
+- [`pso_manifest.tsv`](pso_manifest.tsv) seeds the [prepare step](../../../docs/development.md#the-prepare-step) of a first start: 9,625 rows (8,376 shaders, 1,112 render and 137 compute pipelines) recorded on an M3 Pro Mac (macOS 27.2) with no lists present, over boot, the title and its movie, a new game and the opening, Link's house, Kokiri Forest and a save load ([PR 1493](https://github.com/seedds/nxnative/pull/1493)), and five compute pipelines Saria's greeting builds (Deku Scrub, Business Scrub, Deku Baba), found in [PR 1488](https://github.com/seedds/nxnative/pull/1488). With the list empty, a first start with a cold Metal shader cache showed a black picture with the title music for minutes: one title frame built 11 pipelines and loaded 12 shader libraries in 252.6 s on that Mac ([issue 1477](https://github.com/seedds/nxnative/issues/1477)). Before compute pipelines were in the offline archive, a true first start with the list prepared for 134.7 s on an M4 MacBook Air and then had no frame over 0.25 s to a save load. Open: the first start has not been measured with the archive's compute pipelines, nor on iOS, where this game has no bundled archive (no `pso_mtl4`) and the list is all a first start has; the render bases the `R` rows need are not in the offline archive. A longer list from hours of iPad play (PR 1488, 9,789 rows) prepared 16 s longer on that MacBook and avoided only 7 render builds that made no frame over 100 ms. The list's last 4,959 rows (3,193 shaders, 1,579 render and 187 compute pipelines) are the rows of an iPad Pro (M5)'s own lists that it lacked, and rows recorded on a Mac on first looks at places a new player reaches next: the forest bridge (Saria's farewell), Hyrule Field, the Lost Woods and Kokiri Forest. There, with only the iPad's lists, the Mac built 344 render pipelines in play in Hyrule Field and 362 on the bridge (frames up to 749 and 1,273 ms), against 0 and 5 with them (up to 236 and 385 ms, the load frame and the bridge's cutscene); on the iPad, where each is built at its first draw (0.1-0.9 s), the stutter at a first look went away except in the forest's heaviest area. Cost: the prepare step of a cold first start builds those pipelines too.
 - With a window, the first start on a new chain runs the pipeline prebuild first: 33,190 shader pairs, 691 s on this Mac. A run with no window skips it.
 - The opening movie runs at the movie's own 24 fps pace during the story section and cannot be skipped: about 8 minutes on a new file.