feat: Profile app circuits with megahonk

[sirasistant]

After this PR #7722 we can profile with megahonk, to get more accurate gate counts.

[LeilaWang]

🚀

[AztecBot]

Benchmark results

Metrics with a significant change:

• avm_simulation_time_ms (Token:transfer_public): 51.1 (+104%)
• protocol_circuit_proving_time_in_ms (base-parity): 1,414 (-30%)

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	5,780 (+1%)	1,556 (+1%)	705 (-1%)	751 (-1%)	769 (+1%)
proof_construction_time_sha256_30_ms	11,835 (+1%)	3,167 (+1%)	1,409	1,439	1,465
proof_construction_time_sha256_100_ms	44,260 (+1%)	12,377	5,769 (+1%)	5,545 (-1%)	5,481 (-1%)
proof_construction_time_poseidon_hash_ms	78.0	34.0	34.0	59.0 (+2%)	88.0
proof_construction_time_poseidon_hash_30_ms	1,519	417	200	228 (-2%)	266 (+1%)
proof_construction_time_poseidon_hash_100_ms	5,609	1,517	676	727 (-1%)	743 (-6%)

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	6,590	6,588
l1_rollup_execution_gas	611,442	611,583	611,732
l2_block_processing_time_in_ms	742 (-2%)	1,408	2,680 (-1%)
l2_block_building_time_in_ms	10,141 (-2%)	19,797	39,290 (-1%)
l2_block_rollup_simulation_time_in_ms	10,141 (-2%)	19,797	39,290 (-1%)
l2_block_public_tx_process_time_in_ms	8,424 (-3%)	17,891	37,284 (-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	7,012 (-1%)	9,806
node_database_size_in_bytes	12,714,064	16,912,464
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	105 (-1%)	415 (+3%)	21,718	44,795	N/A	N/A	N/A	N/A
private-kernel-inner	174	708	72,440	44,942	N/A	N/A	N/A	N/A
private-kernel-tail	727	945	52,998	46,729	N/A	N/A	N/A	N/A
base-parity	6.50 (+1%)	633 (-1%)	160	96.0	⚠️ 1,414 (-30%)	13,188	19.0	131,072
root-parity	113	131 (+6%)	69,084	96.0	32,133 (+3%)	13,188	19.0	4,194,304
base-rollup	3,237	5,056 (+2%)	182,192	632	44,861	13,988	44.0	4,194,304
root-rollup	158	123 (-2%)	54,461	684	29,947 (+5%)	13,956	43.0	4,194,304
public-kernel-setup	86.5 (-1%)	2,780 (+1%)	98,393	65,654	18,680	123,012	3,451	2,097,152
public-kernel-app-logic	101	3,944 (-4%)	98,393	65,654	11,285 (-1%)	123,012	3,451	1,048,576
public-kernel-tail	620 (-1%)	27,500 (+1%)	396,134	10,814	69,038 (-2%)	26,372	431	8,388,608
private-kernel-reset-tiny	229 (-1%)	902 (-1%)	68,504	44,687	N/A	N/A	N/A	N/A
private-kernel-tail-to-public	5,281 (-3%)	1,713 (+3%)	918,792	1,697	N/A	N/A	N/A	N/A
public-kernel-teardown	82.1	4,067 (-2%)	98,393	65,654	19,690 (-4%)	123,012	3,451	2,097,152
merge-rollup	61.2	N/A	35,678	632	N/A	N/A	N/A	N/A
undefined	N/A	N/A	N/A	N/A	158,373	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	11,699	350 (+1%)	N/A	N/A
ContractInstanceDeployer:deploy	1,376	11,699	27.6 (-1%)	N/A	N/A
MultiCallEntrypoint:entrypoint	1,888	11,699	612	N/A	N/A
GasToken:deploy	1,344	11,699	447 (+1%)	N/A	N/A
SchnorrAccount:constructor	1,280	11,699	430 (-1%)	N/A	N/A
SchnorrAccount:entrypoint	2,272	11,699	819	N/A	N/A
Token:privately_mint_private_note	1,248	11,699	503 (-2%)	N/A	N/A
FPC:fee_entrypoint_public	1,312	11,699	87.1 (-2%)	N/A	N/A
Token:transfer	1,280	11,699	1,276	N/A	N/A
AuthRegistry:set_authorized (avm)	18,427	N/A	N/A	102,048	2,027 (+3%)
FPC:prepare_fee (avm)	22,894	N/A	N/A	102,112	2,262 (+4%)
Token:transfer_public (avm)	46,817	N/A	N/A	102,112	7,390 (+8%)
AuthRegistry:consume (avm)	26,670	N/A	N/A	102,080	2,632 (+3%)
FPC:pay_refund (avm)	26,163	N/A	N/A	102,080	3,568 (+1%)
Benchmarking:create_note	1,312	11,699	421	N/A	N/A
SchnorrAccount:verify_private_authwit	1,248	11,699	45.8	N/A	N/A
Token:unshield	1,344	11,699	1,101	N/A	N/A
FPC:fee_entrypoint_private	1,344	11,699	1,415 (+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	96.6 (+2%)	8,139
GasToken:set_portal	12.7 (-19%)	2,362
Token:constructor	122 (+1%)	16,400
FPC:constructor	93.5	9,304
GasToken:mint_public	81.6	6,150
Token:mint_public	94.7 (+8%)	11,720
Token:assert_minter_and_mint	100 (+12%)	8,028
AuthRegistry:set_authorized	8.43 (-23%)	4,537
FPC:prepare_fee	277 (+5%)	8,812
Token:transfer_public	⚠️ 51.1 (+104%)	32,641
FPC:pay_refund	70.6 (-1%)	12,114
Benchmarking:increment_balance	991 (-1%)	7,450
Token:_increase_public_balance	12.0 (-2%)	8,960
FPC:pay_refund_with_shielded_rebate	146 (+1%)	12,663

Public DB Access

Time to access various public DBs.

Function	time_ms
get-nullifier-index	0.157

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	0.600	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	47.4 (-1%)	74.7 (-2%)	129 (-2%)	242 (-1%)	467 (-1%)
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	0.484 (-1%)	0.459 (-2%)	0.443 (-2%)	0.439 (-1%)	0.436 (-1%)
batch_insert_into_indexed_tree_20_depth_ms	N/A	N/A	58.7 (-2%)	110 (-1%)	179 (-2%)	348 (-1%)	683 (-1%)
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	0.496 (-1%)	0.494 (-1%)	0.475 (-2%)	0.472 (-1%)	0.470 (-1%)
batch_insert_into_indexed_tree_40_depth_ms	N/A	N/A	71.8 (-1%)	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	0.510 (-1%)	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	59,027	663,408

Transaction size based on fee payment method

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