Add profiling

[saulshanabrook]

Add profiling to egglog, profiling the lda example and using codspeed on CI

[codspeed-hq]

CodSpeed Performance Report

Congrats! CodSpeed is installed 🎉

🆕 7 new benchmarks were detected.

You will start to see performance impacts in the reports once the benchmarks are run from your default branch.

Detected benchmarks

• test_execution[base] (9.3 ms)
• test_trace (12.9 s)
• test_execution[array_api] (19.9 ms)
• test_execution[array_api-optimized-numba] (838.4 µs)
• test_optimize (135 s)
• test_source_optimized (179.2 s)
• test_execution[array_api-optimized] (3.6 ms)

[saulshanabrook]

This seems good enough for now! The benchmarks are very slow (run with valgrind) but they show some interesting places where things shouldn't be slow but they are, like converting to egglog expressions: