Only recompute space-view heuristics if something has changed #3110
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jleibs
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This is very related to the new store view functionality. |
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Related (almost duplicate to): |
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Dec 16, 2023
…ist of entities per system incrementally (#4558) ### What * Part of #3110 Turns out this doesn't result in a large perf win so far since in samples like ` python .\examples\python\open_photogrammetry_format\main.py --no-frames ` the accumulated cost of doing queries in `all_possible_space_views` overshadows any of these smaller wins. Furthermore, the biggest of getting the per-entities list seems to be the queries necessary to call `heuristic_filter` for each entity. Still, this is an important step for our general dataflow & infrastructure in this area! ### Checklist * [x] I have read and agree to [Contributor Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and the [Code of Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md) * [x] I've included a screenshot or gif (if applicable) * [x] I have tested the web demo (if applicable): * Using newly built examples: [app.rerun.io](https://app.rerun.io/pr/4558/index.html) * Using examples from latest `main` build: [app.rerun.io](https://app.rerun.io/pr/4558/index.html?manifest_url=https://app.rerun.io/version/main/examples_manifest.json) * Using full set of examples from `nightly` build: [app.rerun.io](https://app.rerun.io/pr/4558/index.html?manifest_url=https://app.rerun.io/version/nightly/examples_manifest.json) * [x] The PR title and labels are set such as to maximize their usefulness for the next release's CHANGELOG - [PR Build Summary](https://build.rerun.io/pr/4558) - [Docs preview](https://rerun.io/preview/1493e68738be62586a7012eb970f6206eb16e638/docs) <!--DOCS-PREVIEW--> - [Examples preview](https://rerun.io/preview/1493e68738be62586a7012eb970f6206eb16e638/examples) <!--EXAMPLES-PREVIEW--> - [Recent benchmark results](https://build.rerun.io/graphs/crates.html) - [Wasm size tracking](https://build.rerun.io/graphs/sizes.html) --------- Co-authored-by: Jeremy Leibs <jeremy@rerun.io>
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Specifically, entities_per_system_per_class (and the things it depends on) can be trivially cached if we have not inserted any new components in the data-store.
An easy cache-key for this is to simply sum the number of components across all entity-paths.
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