fix: Use simulated circuit for tiny reset

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[AztecBot]

Benchmark results

Metrics with a significant change:

• proof_construction_time_sha256_100_ms (16): 5,473 (-17%)
• protocol_circuit_simulation_time_in_ms (private-kernel-reset-tiny): 298 (-77%)
• avm_simulation_time_ms (Token:transfer_public): 30.3 (-47%)
• protocol_circuit_proving_time_in_ms (base-parity): 1,395 (-31%)

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.

Proof generation

Each column represents the number of threads used in proof generation.

Metric	1 threads	4 threads	16 threads	32 threads	64 threads
proof_construction_time_sha256_ms	5,769 (+1%)	1,556 (+1%)	709 (+1%)	748 (+1%)	774
proof_construction_time_sha256_30_ms	11,873 (-2%)	3,169 (+1%)	1,415	1,450 (+1%)	1,474
proof_construction_time_sha256_100_ms	44,105 (+1%)	11,880 (+1%)	⚠️ 5,473 (-17%)	5,431	5,407 (-9%)
proof_construction_time_poseidon_hash_ms	78.0	34.0	34.0 (-3%)	58.0 (-2%)	88.0 (+1%)
proof_construction_time_poseidon_hash_30_ms	1,526 (+1%)	420 (+1%)	201 (+1%)	230 (+4%)	267 (+1%)
proof_construction_time_poseidon_hash_100_ms	5,660 (+1%)	1,532 (+1%)	683 (+1%)	743 (+2%)	742 (-1%)

L2 block published to L1

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

Metric	4 txs	8 txs	16 txs
l1_rollup_calldata_size_in_bytes	708	708	708
l1_rollup_calldata_gas	6,600	6,594	6,576
l1_rollup_execution_gas	583,062	583,207	583,340
l2_block_processing_time_in_ms	763 (+2%)	1,412 (-1%)	2,695
l2_block_building_time_in_ms	13,154 (-1%)	25,954 (-1%)	50,959 (+1%)
l2_block_rollup_simulation_time_in_ms	13,154 (-1%)	25,954 (-1%)	50,958 (+1%)
l2_block_public_tx_process_time_in_ms	11,026 (-1%)	23,608 (-1%)	48,595 (+1%)

L2 chain processing

Each column represents the number of blocks on the L2 chain where each block has 8 txs.

Metric	3 blocks	5 blocks
node_history_sync_time_in_ms	6,977 (-2%)	9,869
node_database_size_in_bytes	12,431,440	16,445,520
pxe_database_size_in_bytes	16,254	26,813

Circuits stats

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

Circuit	simulation_time_in_ms	witness_generation_time_in_ms	input_size_in_bytes	output_size_in_bytes	proving_time_in_ms	proof_size_in_bytes	num_public_inputs	size_in_gates
private-kernel-init	116 (-2%)	412 (+3%)	21,732	54,085	N/A	N/A	N/A	N/A
private-kernel-inner	230	720 (-1%)	81,199	54,264	N/A	N/A	N/A	N/A
private-kernel-tail	1,123 (-1%)	2,526 (-3%)	61,808	61,554	N/A	N/A	N/A	N/A
base-parity	6.49	824 (-1%)	160	96.0	⚠️ 1,395 (-31%)	12,676	3.00	131,072
root-parity	108 (+1%)	117 (-2%)	64,860	96.0	48,986	12,676	3.00	4,194,304
base-rollup	4,234	4,922 (-1%)	180,315	632	49,078 (+2%)	13,476	28.0	4,194,304
root-rollup	152	124 (+2%)	51,261	652	41,741 (-1%)	13,412	26.0	4,194,304
public-kernel-setup	196 (-2%)	2,417 (-2%)	112,536	80,310	22,862	118,916	3,323	2,097,152
public-kernel-app-logic	150 (-1%)	3,336 (+1%)	112,536	80,310	10,153 (-2%)	118,916	3,323	1,048,576
public-kernel-tail	895	27,868 (+1%)	409,413	10,046	71,827	24,868	384	8,388,608
private-kernel-reset-tiny	⚠️ 298 (-77%)	1,018	77,007	53,954	N/A	N/A	N/A	N/A
private-kernel-tail-to-public	6,929 (-1%)	2,917 (-1%)	777,415	1,632	N/A	N/A	N/A	N/A
public-kernel-teardown	141 (-3%)	3,350 (+1%)	112,536	80,310	22,951 (+1%)	118,916	3,323	2,097,152
merge-rollup	57.4 (-4%)	N/A	33,566	632	N/A	N/A	N/A	N/A
undefined	N/A	N/A	N/A	N/A	159,932 (-1%)	N/A	N/A	N/A

Stats on running time collected for app circuits

Function	input_size_in_bytes	output_size_in_bytes	witness_generation_time_in_ms	proof_size_in_bytes	proving_time_in_ms
ContractClassRegisterer:register	1,312	9,344	396 (-2%)	N/A	N/A
ContractInstanceDeployer:deploy	1,376	9,344	25.4 (+1%)	N/A	N/A
MultiCallEntrypoint:entrypoint	1,888	9,344	631	N/A	N/A
GasToken:deploy	1,344	9,344	566	N/A	N/A
SchnorrAccount:constructor	1,280	9,344	429 (-1%)	N/A	N/A
SchnorrAccount:entrypoint	2,272	9,344	766 (+1%)	N/A	N/A
Token:privately_mint_private_note	1,248	9,344	498 (-2%)	N/A	N/A
FPC:fee_entrypoint_public	1,312	9,344	101 (-2%)	N/A	N/A
Token:transfer	1,280	9,344	1,472	N/A	N/A
AuthRegistry:set_authorized (avm)	19,222	N/A	N/A	95,392	2,109 (-1%)
FPC:prepare_fee (avm)	26,664	N/A	N/A	95,456	2,853 (-2%)
Token:transfer_public (avm)	42,914	N/A	N/A	95,456	3,271
AuthRegistry:consume (avm)	33,100	N/A	N/A	95,424	2,804 (-1%)
FPC:pay_refund (avm)	36,829	N/A	N/A	95,424	11,029 (-2%)
Benchmarking:create_note	1,312	9,344	427	N/A	N/A
SchnorrAccount:verify_private_authwit	1,248	9,344	41.7	N/A	N/A
Token:unshield	1,344	9,344	1,189 (-1%)	N/A	N/A
FPC:fee_entrypoint_private	1,344	9,344	1,563 (-1%)	N/A	N/A

AVM Simulation

Time to simulate various public functions in the AVM.

Function	time_ms	bytecode_size_in_bytes
GasToken:_increase_public_balance	98.4 (-3%)	13,790
GasToken:set_portal	10.8 (-20%)	3,339
Token:constructor	125 (-5%)	23,692
FPC:constructor	92.7 (+2%)	13,592
GasToken:mint_public	81.0	10,158
Token:mint_public	335 (-10%)	19,034
Token:assert_minter_and_mint	50.3 (-3%)	12,925
AuthRegistry:set_authorized	44.7 (-13%)	7,812
FPC:prepare_fee	105 (-24%)	15,062
Token:transfer_public	⚠️ 30.3 (-47%)	31,218
FPC:pay_refund	146 (-2%)	25,260
Benchmarking:increment_balance	1,341	15,267
Token:_increase_public_balance	18.7 (+11%)	15,006
FPC:pay_refund_with_shielded_rebate	182 (+1%)	26,347

Public DB Access

Time to access various public DBs.

Function	time_ms
get-nullifier-index	0.160

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	256 leaves	512 leaves	1024 leaves
batch_insert_into_append_only_tree_16_depth_ms	10.4	16.7	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_16_depth_hash_count	16.8	31.7	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_16_depth_hash_ms	0.599	0.512	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_32_depth_ms	N/A	N/A	48.2 (+1%)	75.6	131	245	468
batch_insert_into_append_only_tree_32_depth_hash_count	N/A	N/A	95.9	159	287	543	1,055
batch_insert_into_append_only_tree_32_depth_hash_ms	N/A	N/A	0.492 (+1%)	0.465	0.451	0.444	0.437
batch_insert_into_indexed_tree_20_depth_ms	N/A	N/A	59.5	111	183 (+1%)	352	692
batch_insert_into_indexed_tree_20_depth_hash_count	N/A	N/A	109	207	355	691	1,363
batch_insert_into_indexed_tree_20_depth_hash_ms	N/A	N/A	0.502	0.499	0.481 (+1%)	0.477	0.474
batch_insert_into_indexed_tree_40_depth_ms	N/A	N/A	72.7	N/A	N/A	N/A	N/A
batch_insert_into_indexed_tree_40_depth_hash_count	N/A	N/A	133	N/A	N/A	N/A	N/A
batch_insert_into_indexed_tree_40_depth_hash_ms	N/A	N/A	0.517	N/A	N/A	N/A	N/A

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	76,837	667,838

Transaction size based on fee payment method

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