add benchmarks

[flying-sheep]

No description provided.

[codecov]

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[codspeed-hq]

CodSpeed Performance Report

Congrats! CodSpeed is installed 🎉

🆕 8 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_to_dense_benchmark[csc-float32-C] (4.2 ms)
• test_to_dense_benchmark[csc-float32-F] (4.2 ms)
• test_to_dense_benchmark[csc-float64-C] (8.3 ms)
• test_to_dense_benchmark[csc-float64-F] (8.3 ms)
• test_to_dense_benchmark[csr-float32-C] (4.2 ms)
• test_to_dense_benchmark[csr-float32-F] (4.2 ms)
• test_to_dense_benchmark[csr-float64-C] (8.3 ms)
• test_to_dense_benchmark[csr-float64-F] (8.3 ms)