feat(avm): add AvmContextInputs

[fcarreiro]

NOTE: I don't know why this triggered a change in the snapshot.

---

This structure lets us easily pass things from the (TS) context to the constructor of the AvmContext in Noir, using calldata as a vehicle (effectively adding them as public inputs).

The choice to add the structure to the function arguments as LAST and not first is because adding them first would break any non-noir-generated bytecode (since they would have to shift their expected calldata by a magic number N = sizeof(AvmContextInputs)). Putting it last, makes it transparent for them. A calldatacopy would still work.

However, having this makes any external call always have AvmContextInputs in the calldata, bloating it (on chain) for non-noir-generated bytecode. This is not an issue now.

For the moment, this is temporary, but might be useful long term. (Sean mentioned passing maybe env getters like this).

---

Implemented AvmContext.selector() and AvmContext.get_args_hash() using the above.

[fcarreiro]

• feat(avm)!: per function avm run #5421
• feat(avm): add AvmContextInputs #5396 👈
• fix(avm-simulator): hashing opcodes indirection #5376
• master

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[AztecBot]

Benchmark results

Metrics with a significant change:

• note_trial_decrypting_time_in_ms (32): 118 (+197%)

Detailed results

All benchmarks are run on txs on the Benchmarking contract on the repository. Each tx consists of a batch call to create_note and increment_balance, which guarantees that each tx has a private call, a nested private call, a public call, and a nested public call, as well as an emitted private note, an unencrypted log, and public storage read and write.

This benchmark source data is available in JSON format on S3 here.

Values are compared against data from master at commit 933145e8 and shown if the difference exceeds 1%.

L2 block published to L1

Each column represents the number of txs on an L2 block published to L1.

Metric	8 txs	32 txs	64 txs
l1_rollup_calldata_size_in_bytes	676	676	676
l1_rollup_calldata_gas	6,424	6,424	6,424
l1_rollup_execution_gas	585,757	585,757	585,757
l2_block_processing_time_in_ms	1,298	4,690 (-1%)	9,246
note_successful_decrypting_time_in_ms	178 (-4%)	503 (-4%)	1,003 (+4%)
note_trial_decrypting_time_in_ms	81.6 (-10%)	⚠️ 118 (+197%)	35.9 (-62%)
l2_block_building_time_in_ms	14,013 (+1%)	51,432	101,956
l2_block_rollup_simulation_time_in_ms	8,023 (+1%)	27,958 (-1%)	55,103
l2_block_public_tx_process_time_in_ms	5,967 (+1%)	23,423 (+1%)	46,754 (+1%)

L2 chain processing

Each column represents the number of blocks on the L2 chain where each block has 16 txs.

Metric	5 blocks	10 blocks
node_history_sync_time_in_ms	14,149 (+1%)	26,643
note_history_successful_decrypting_time_in_ms	1,250 (-1%)	2,547 (+5%)
note_history_trial_decrypting_time_in_ms	94.9 (+5%)	186 (+58%)
node_database_size_in_bytes	18,612,304	35,098,704
pxe_database_size_in_bytes	29,859	59,414

Circuits stats

Stats on running time and I/O sizes collected for every circuit run across all benchmarks.

Circuit	circuit_simulation_time_in_ms	circuit_input_size_in_bytes	circuit_output_size_in_bytes
private-kernel-init	239 (+2%)	44,377	28,214
private-kernel-ordering	210 (+1%)	52,880	14,296
base-parity	4,414 (-8%)	128	311
root-parity	1,722 (+7%)	1,244	311
base-rollup	18,006	165,760	861
root-rollup	49.8	4,359	725
private-kernel-inner	310 (+2%)	73,794	28,214
public-kernel-app-logic	127 (+2%)	35,251	28,217
public-kernel-tail	171 (+1%)	40,928	28,217
merge-rollup	9.47 (+2%)	2,568	861

Tree insertion stats

The duration to insert a fixed batch of leaves into each tree type.

Metric	1 leaves	16 leaves	64 leaves	128 leaves	512 leaves	1024 leaves	2048 leaves	4096 leaves	32 leaves
batch_insert_into_append_only_tree_16_depth_ms	9.95	15.9 (-1%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_16_depth_hash_count	16.8	31.6	N/A	N/A	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_16_depth_hash_ms	0.580	0.492 (-1%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_32_depth_ms	N/A	N/A	46.5	71.8 (-1%)	232 (+1%)	443	866 (+1%)	1,707 (-1%)	N/A
batch_insert_into_append_only_tree_32_depth_hash_count	N/A	N/A	96.0	159	543	1,055	2,079	4,127	N/A
batch_insert_into_append_only_tree_32_depth_hash_ms	N/A	N/A	0.477	0.443 (-1%)	0.423 (+1%)	0.414	0.413	0.410	N/A
batch_insert_into_indexed_tree_20_depth_ms	N/A	N/A	53.6 (-2%)	106	334 (-2%)	657	1,300 (-1%)	2,593	N/A
batch_insert_into_indexed_tree_20_depth_hash_count	N/A	N/A	104	207	691	1,363	2,707	5,395	N/A
batch_insert_into_indexed_tree_20_depth_hash_ms	N/A	N/A	0.477 (-2%)	0.480	0.455 (-2%)	0.453	0.453	0.451	N/A
batch_insert_into_indexed_tree_40_depth_ms	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	61.0
batch_insert_into_indexed_tree_40_depth_hash_count	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	109
batch_insert_into_indexed_tree_40_depth_hash_ms	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	0.535

Miscellaneous

Transaction sizes based on how many contract classes are registered in the tx.

Metric	0 registered classes	1 registered classes
tx_size_in_bytes	14,966	494,914

Transaction processing duration by data writes.

Metric	0 new note hashes	1 new note hashes
tx_pxe_processing_time_ms	2,435 (+3%)	1,414 (+1%)

Metric	0 public data writes	1 public data writes
tx_sequencer_processing_time_ms	16.7 (+2%)	736 (+1%)

[fcarreiro]

Merge activity

• Mar 25, 1:46 PM EDT: @fcarreiro merged this pull request with Graphite.