test_storage_access_warm_benchmark()

Documentation for tests/benchmark/compute/instruction/test_storage.py::test_storage_access_warm_benchmark@892e6d1e.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/benchmark/compute/instruction/test_storage.py::test_storage_access_warm_benchmark --gas-benchmark-values 1

Benchmark warm storage slot accesses using code generator.

Each iteration accesses a different storage slot (incrementing key) to ensure warm access costs are measured.

Source code in tests/benchmark/compute/instruction/test_storage.py

@pytest.mark.repricing
@pytest.mark.parametrize(
    "storage_action",
    [
        pytest.param(StorageAction.READ, id="SLOAD"),
        pytest.param(StorageAction.WRITE_SAME_VALUE, id="SSTORE same value"),
        pytest.param(StorageAction.WRITE_NEW_VALUE, id="SSTORE new value"),
    ],
)
def test_storage_access_warm_benchmark(
    benchmark_test: BenchmarkTestFiller,
    storage_action: StorageAction,
) -> None:
    """
    Benchmark warm storage slot accesses using code generator.

    Each iteration accesses a different storage slot (incrementing key)
    to ensure warm access costs are measured.
    """
    match storage_action:
        case StorageAction.WRITE_SAME_VALUE:
            # Timestamp is nonzero (no txs run in Genesis block),
            # Always writes to the zero key a nonzero, constant value
            attack_block = Op.SSTORE(Op.PUSH0, Op.TIMESTAMP)
        case StorageAction.WRITE_NEW_VALUE:
            attack_block = Op.SSTORE(Op.PUSH0, Op.GAS)
        case StorageAction.READ:
            attack_block = Op.SLOAD(Op.PUSH0)
        case _:
            raise ValueError("Unspecified storage action")

    benchmark_test(
        target_opcode=Op.SLOAD
        if storage_action == StorageAction.READ
        else Op.SSTORE,
        code_generator=ExtCallGenerator(attack_block=attack_block),
    )

Parametrized Test Cases

This test generates 1 parametrized test case across 3 forks.