Benchmark layers kept

[Peter554]

I think it's helpful to benchmark this case, as it might be possible to take a shortcut when the contract is kept (I want to do this in the rust implementation, should be much faster when the contract is kept). We want to optimise for this case, since in most cases most contracts will be kept (CI is green most of the time).

[codspeed-hq]

CodSpeed Performance Report

Merging #179 will not alter performance

_{Comparing Peter554:benchmark-layers-kept (572d605) with master (ac959a9)}

Summary

✅ 10 untouched benchmarks
🆕 4 new benchmarks
⁉️ 2 (👁 2) dropped benchmarks

Benchmarks breakdown

	Benchmark	master	Peter554:benchmark-layers-kept	Change
🆕	test_deep_layers_large_graph_kept	N/A	1.5 s	N/A
🆕	test_deep_layers_large_graph_violated	N/A	1.5 s	N/A
🆕	test_top_level_large_graph_kept	N/A	765.3 ms	N/A
🆕	test_top_level_large_graph_violated	N/A	788 ms	N/A
👁	test_deep_layers_large_graph	1.5 s	N/A	N/A
👁	test_top_level_large_graph	787 ms	N/A	N/A

[seddonym]

Nice idea.