chore(avm): avoid including flavor where possible

[fcarreiro]

The Flavor is difficult for the compiler to process.

[fcarreiro]

• chore(avm): avoid including flavor where possible #7361 👈
• chore(avm): better log_derivative_inverse_round #7360
• chore(avm): smaller prover #7359
• chore(avm): smaller transcript #7357
• master

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[AztecBot]

Benchmark results

Metrics with a significant change:

• avm_simulation_time_ms (Token:mint_public): 84.6 (-76%)
• protocol_circuit_witness_generation_time_in_ms (private-kernel-reset-small): 1,336 (+21%)

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	5,799 (+1%)	1,565	711 (+1%)	763 (-1%)	773
proof_construction_time_sha256_30_ms	11,916	3,184	1,418	1,437	1,481 (+1%)
proof_construction_time_sha256_100_ms	44,314	11,885	5,440	5,426	5,400
proof_construction_time_poseidon_hash_ms	79.0	35.0	34.0	59.0	89.0 (+2%)
proof_construction_time_poseidon_hash_30_ms	1,537 (+1%)	423 (+1%)	202	225 (+1%)	270 (+1%)
proof_construction_time_poseidon_hash_100_ms	5,828 (+1%)	1,606 (+1%)	733	783	803

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	1,412	1,412	1,412
l1_rollup_calldata_gas	9,464	9,458	9,464
l1_rollup_execution_gas	613,492	613,637	613,794
l2_block_processing_time_in_ms	771 (+1%)	1,414 (-1%)	2,739 (+2%)
l2_block_building_time_in_ms	12,834	25,495	49,772
l2_block_rollup_simulation_time_in_ms	12,834	25,494	49,772
l2_block_public_tx_process_time_in_ms	10,790 (-1%)	23,275	47,535

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	7,038 (-1%)	9,913 (-1%)
node_database_size_in_bytes	12,456,016	16,171,088
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	proving_time_in_ms	input_size_in_bytes	output_size_in_bytes	proof_size_in_bytes	num_public_inputs	size_in_gates
private-kernel-init	110 (+2%)	392 (-4%)	15,049 (-1%)	20,022	55,054	74,464	2,260	524,288
private-kernel-inner	221	695 (-2%)	29,095 (+1%)	82,186	55,054	74,464	2,260	1,048,576
private-kernel-tail	1,056	2,436 (-1%)	55,103 (-3%)	62,441	62,089	14,944	400	2,097,152
base-parity	6.23 (-1%)	854 (-7%)	2,629	160	96.0	2,240	3.00	131,072
root-parity	69.3	73.9 (+4%)	38,814 (-11%)	27,868	96.0	2,752	19.0	2,097,152
base-rollup	4,130	4,823 (-1%)	93,751 (+3%)	172,028	632	3,552	44.0	4,194,304
root-rollup	126	88.7 (+4%)	23,295 (+4%)	25,053	652	3,488	42.0	1,048,576
public-kernel-setup	189 (+1%)	2,353 (-3%)	43,105 (+1%)	103,915	80,310	106,944	3,275	2,097,152
public-kernel-app-logic	145 (+1%)	3,284 (-1%)	42,849 (+2%)	103,915	80,310	106,944	3,275	2,097,152
public-kernel-tail	885	23,530 (-14%)	177,183 (-3%)	400,808	10,046	14,944	400	8,388,608
private-kernel-reset-small	293 (+1%)	⚠️ 1,336 (+21%)	29,522 (+11%)	79,305	55,054	74,464	2,260	1,048,576
public-kernel-teardown	134	3,242 (-3%)	42,290 (-1%)	103,915	80,310	106,944	3,275	2,097,152
merge-rollup	40.2	N/A	N/A	16,094	632	N/A	N/A	N/A
private-kernel-tail-to-public	N/A	9,721 (+14%)	56,148 (-3%)	N/A	N/A	106,944	3,275	2,097,152

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	size_in_gates	num_public_inputs
ContractClassRegisterer:register	1,344	9,364	394 (-1%)	N/A	N/A	N/A	N/A
ContractInstanceDeployer:deploy	1,408	9,364	24.7	N/A	N/A	N/A	N/A
MultiCallEntrypoint:entrypoint	1,920	9,364	651	N/A	N/A	N/A	N/A
GasToken:deploy	1,376	9,364	564 (-2%)	N/A	N/A	N/A	N/A
SchnorrAccount:constructor	1,312	9,364	478	N/A	N/A	N/A	N/A
SchnorrAccount:entrypoint	2,304	9,364	826	16,000	4,682 (-1%)	131,072	433
Token:privately_mint_private_note	1,280	9,364	536 (-7%)	N/A	N/A	N/A	N/A
FPC:fee_entrypoint_public	1,344	9,364	101 (-5%)	16,000	1,690	65,536	433
Token:transfer	1,312	9,364	1,627 (-2%)	16,000	11,497 (+1%)	524,288	433
AuthRegistry:set_authorized (avm)	19,226	N/A	N/A	91,264	1,379 (+13%)	N/A	N/A
FPC:prepare_fee (avm)	26,668	N/A	N/A	91,328	3,231 (+5%)	N/A	N/A
Token:transfer_public (avm)	42,918	N/A	N/A	91,328	3,907 (+4%)	N/A	N/A
AuthRegistry:consume (avm)	33,104	N/A	N/A	91,264	2,985 (+10%)	N/A	N/A
FPC:pay_refund (avm)	36,833	N/A	N/A	91,296	23,692 (+1%)	N/A	N/A
Benchmarking:create_note	1,344	9,364	469 (+1%)	N/A	N/A	N/A	N/A
SchnorrAccount:verify_private_authwit	1,280	9,364	41.8 (+1%)	N/A	N/A	N/A	N/A
Token:unshield	1,376	9,364	1,372 (+3%)	N/A	N/A	N/A	N/A
FPC:fee_entrypoint_private	1,376	9,364	1,769 (+3%)	N/A	N/A	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	76.6 (-5%)	13,790
GasToken:set_portal	14.4 (-10%)	3,339
Token:constructor	108 (+5%)	23,692
FPC:constructor	72.4 (-4%)	13,592
GasToken:mint_public	64.6 (+5%)	10,158
Token:mint_public	⚠️ 84.6 (-76%)	19,034
Token:assert_minter_and_mint	65.8 (+1%)	12,925
AuthRegistry:set_authorized	34.0	7,812
FPC:prepare_fee	104 (+1%)	15,062
Token:transfer_public	37.5 (+24%)	31,218
FPC:pay_refund	132	25,260
Benchmarking:increment_balance	1,314	15,267
Token:_increase_public_balance	15.7 (+5%)	15,006
FPC:pay_refund_with_shielded_rebate	162 (-1%)	26,347

Public DB Access

Time to access various public DBs.

Function	time_ms
get-nullifier-index	0.154 (-1%)

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	17.0 (+1%)	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	0.604	0.522 (+1%)	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_32_depth_ms	N/A	N/A	48.1	76.1	132	245 (-1%)	478 (+2%)
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	0.491	0.467	0.454	0.444 (-1%)	0.445 (+1%)
batch_insert_into_indexed_tree_20_depth_ms	N/A	N/A	59.5	112 (-1%)	184	353 (-1%)	703 (+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	0.503	0.504	0.487	0.478 (-1%)	0.481 (+1%)
batch_insert_into_indexed_tree_40_depth_ms	N/A	N/A	72.8	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	0.519	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	74,090	667,873

Transaction size based on fee payment method

| Metric | |
| - | |

[jeanmon]

LGTM

[fcarreiro]

Merge activity

• Jul 8, 7:28 AM EDT: @fcarreiro started a stack merge that includes this pull request via Graphite.
• Jul 8, 7:32 AM EDT: Graphite rebased this pull request as part of a merge.
• Jul 8, 8:48 AM EDT: @fcarreiro merged this pull request with Graphite.