chore(avm): smaller transcript

[fcarreiro]

Use array and for loop instead of naming variables.

@Maddiaa0 however, if instead of doing this I just delete or comment out one of the commitments, and remove its serde, everything just works. If I look at the prover/verifier, nothing seems to be using these variables. Things are just passed through send_to_verifier. Could you clarify what's going on?

[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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[github-actions]

Changes to circuit sizes

Generated at commit: 861a756daa70bf13289ffd5c68bfccec9ab6b180, compared to commit: 586c0b019d0c2c462188f03c9c31d25a46e35eb6

🧾 Summary (100% most significant diffs)

Program	ACIR opcodes (+/-)	%	Circuit size (+/-)	%
private_kernel_inner	-1,840 ✅	-4.13%	+101,731 ❌	+9.73%
private_kernel_reset	-128 ✅	-0.10%	-12,887 ✅	-0.76%
private_kernel_tail_to_public	-197 ✅	-0.04%	-13,057 ✅	-0.78%
private_kernel_tail	-197 ✅	-0.92%	-13,057 ✅	-1.05%
private_kernel_reset_big	-128 ✅	-0.14%	-12,887 ✅	-1.07%
private_kernel_reset_medium	-128 ✅	-0.18%	-12,887 ✅	-1.35%
private_kernel_reset_small	-128 ✅	-0.21%	-12,887 ✅	-1.55%
private_kernel_init	-1,240 ✅	-4.80%	-7,845 ✅	-2.06%
private_kernel_init_simulated	0 ➖	0.00%	-80 ✅	-3.56%
private_kernel_inner_simulated	0 ➖	0.00%	-80 ✅	-3.56%
private_kernel_reset_simulated	0 ➖	0.00%	-80 ✅	-3.56%
private_kernel_reset_simulated_big	0 ➖	0.00%	-80 ✅	-3.56%
private_kernel_reset_simulated_medium	0 ➖	0.00%	-80 ✅	-3.56%
private_kernel_reset_simulated_small	0 ➖	0.00%	-80 ✅	-3.56%

---

Full diff report 👇

Program	ACIR opcodes (+/-)	%	Circuit size (+/-)	%
private_kernel_inner	42,765 (-1,840)	-4.13%	1,147,721 (+101,731)	+9.73%
private_kernel_reset	132,175 (-128)	-0.10%	1,683,027 (-12,887)	-0.76%
private_kernel_tail_to_public	444,398 (-197)	-0.04%	1,666,714 (-13,057)	-0.78%
private_kernel_tail	21,180 (-197)	-0.92%	1,233,386 (-13,057)	-1.05%
private_kernel_reset_big	92,199 (-128)	-0.14%	1,187,595 (-12,887)	-1.07%
private_kernel_reset_medium	72,210 (-128)	-0.18%	939,878 (-12,887)	-1.35%
private_kernel_reset_small	62,215 (-128)	-0.21%	816,059 (-12,887)	-1.55%
private_kernel_init	24,591 (-1,240)	-4.80%	372,912 (-7,845)	-2.06%
private_kernel_init_simulated	1 (0)	0.00%	2,168 (-80)	-3.56%
private_kernel_inner_simulated	1 (0)	0.00%	2,168 (-80)	-3.56%
private_kernel_reset_simulated	1 (0)	0.00%	2,168 (-80)	-3.56%
private_kernel_reset_simulated_big	1 (0)	0.00%	2,168 (-80)	-3.56%
private_kernel_reset_simulated_medium	1 (0)	0.00%	2,168 (-80)	-3.56%
private_kernel_reset_simulated_small	1 (0)	0.00%	2,168 (-80)	-3.56%

[AztecBot]

Benchmark results

Metrics with a significant change:

• app_circuit_witness_generation_time_in_ms (MultiCallEntrypoint:entrypoint): 1,158 (+78%)
• app_circuit_witness_generation_time_in_ms (GasToken:deploy): 799 (+46%)
• app_circuit_witness_generation_time_in_ms (SchnorrAccount:entrypoint): 1,592 (+93%)
• app_circuit_witness_generation_time_in_ms (FPC:fee_entrypoint_public): 233 (+150%)
• protocol_circuit_simulation_time_in_ms (private-kernel-inner): 305 (+37%)
• protocol_circuit_simulation_time_in_ms (public-kernel-setup): 547 (+25%)
• protocol_circuit_simulation_time_in_ms (public-kernel-app-logic): 501 (+27%)
• protocol_circuit_simulation_time_in_ms (public-kernel-teardown): 498 (+30%)
• avm_simulation_time_ms (Token:mint_public): 491 (+534%)
• avm_simulation_time_ms (Token:assert_minter_and_mint): 56.1 (-62%)
• avm_simulation_time_ms (Token:transfer_public): 60.8 (+110%)
• avm_simulation_time_ms (Token:_increase_public_balance): 54.1 (+263%)
• app_circuit_proving_time_in_ms (SchnorrAccount:entrypoint): 52,916 (+1009%)
• app_circuit_proving_time_in_ms (FPC:fee_entrypoint_public): 11,091 (+565%)
• app_circuit_size_in_gates (SchnorrAccount:entrypoint): 2,097,152 (+1500%)
• app_circuit_size_in_gates (FPC:fee_entrypoint_public): 524,288 (+700%)
• protocol_circuit_witness_generation_time_in_ms (private-kernel-inner): 880 (+25%)
• protocol_circuit_witness_generation_time_in_ms (base-parity): 1,537 (+18%)
• protocol_circuit_proving_time_in_ms (private-kernel-inner): 49,891 (+65%)
• protocol_circuit_size_in_gates (private-kernel-inner): 2,097,152 (+100%)

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	5,755	1,557	711	758	779 (+1%)
proof_construction_time_sha256_30_ms	11,840	3,168	1,399	1,435 (+1%)	1,463 (-1%)
proof_construction_time_sha256_100_ms	44,010	11,781	5,408	5,379 (-1%)	5,350
proof_construction_time_poseidon_hash_ms	79.0	34.0	34.0	58.0	89.0 (+2%)
proof_construction_time_poseidon_hash_30_ms	1,531	420	200 (+1%)	231 (+1%)	264
proof_construction_time_poseidon_hash_100_ms	5,790	1,575	720	773 (+1%)	793

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	9,440	9,470	9,452
l1_rollup_execution_gas	611,179	611,360	611,493
l2_block_processing_time_in_ms	754	1,423 (+1%)	2,707 (-1%)
l2_block_building_time_in_ms	20,845 (+10%)	41,491 (+11%)	82,074 (+11%)
l2_block_rollup_simulation_time_in_ms	20,845 (+10%)	41,491 (+11%)	82,073 (+11%)
l2_block_public_tx_process_time_in_ms	17,824 (+10%)	38,305 (+12%)	78,876 (+11%)

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	7,078 (+1%)	9,932 (+1%)
node_database_size_in_bytes	12,472,400	16,203,856 (+1%)
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	100 (-8%)	379 (-8%)	13,197 (-8%)	19,418 (-3%)	53,878 (-2%)	71,872 (-3%)	2,179 (-4%)	524,288
private-kernel-inner	⚠️ 305 (+37%)	⚠️ 880 (+25%)	⚠️ 49,891 (+65%)	80,374 (-2%)	53,878 (-2%)	71,872 (-3%)	2,179 (-4%)	⚠️ 2,097,152 (+100%)
private-kernel-tail	1,046 (-1%)	2,482 (-1%)	49,578 (-8%)	61,201 (-2%)	62,057	14,912	399	2,097,152
base-parity	6.17	⚠️ 1,537 (+18%)	2,644	128	64.0	2,208	2.00	131,072
root-parity	49.4 (+2%)	66.4 (-1%)	41,027 (+3%)	27,100	64.0	2,720	18.0	2,097,152
base-rollup	6,528 (+11%)	4,931 (+2%)	90,667 (-1%)	170,330	728	3,648	47.0	4,194,304
root-rollup	110	81.2	23,831 (-1%)	25,253	620	3,456	41.0	1,048,576
public-kernel-setup	⚠️ 547 (+25%)	2,400	41,937 (-1%)	102,121	80,278	106,912	3,274	2,097,152
public-kernel-app-logic	⚠️ 501 (+27%)	3,399 (+1%)	44,406 (+1%)	102,121	80,278	106,912	3,274	2,097,152
public-kernel-tail	1,145 (+1%)	26,681 (-1%)	176,454 (-2%)	399,014	10,014	14,912	399	8,388,608
private-kernel-reset-small	287 (-1%)	1,156 (-13%)	29,991 (+14%)	78,065 (-1%)	53,878 (-2%)	71,872 (-3%)	2,179 (-4%)	1,048,576
public-kernel-teardown	⚠️ 498 (+30%)	3,418 (+2%)	43,992	102,121	80,278	106,912	3,274	2,097,152
merge-rollup	29.4	N/A	N/A	16,486	728	N/A	N/A	N/A
private-kernel-tail-to-public	N/A	8,475	53,856 (-11%)	N/A	N/A	106,912	3,274	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	8,792 (-6%)	397 (+1%)	N/A	N/A	N/A	N/A
ContractInstanceDeployer:deploy	1,408	8,792 (-6%)	24.1 (-2%)	N/A	N/A	N/A	N/A
MultiCallEntrypoint:entrypoint	1,920	8,792 (-6%)	⚠️ 1,158 (+78%)	N/A	N/A	N/A	N/A
GasToken:deploy	1,376	8,792 (-6%)	⚠️ 799 (+46%)	N/A	N/A	N/A	N/A
SchnorrAccount:constructor	1,312	8,792 (-6%)	475 (-2%)	N/A	N/A	N/A	N/A
SchnorrAccount:entrypoint	2,304	8,792 (-6%)	⚠️ 1,592 (+93%)	14,720 (-8%)	⚠️ 52,916 (+1009%)	⚠️ 2,097,152 (+1500%)	393 (-9%)
Token:privately_mint_private_note	1,280	8,792 (-6%)	607 (+13%)	N/A	N/A	N/A	N/A
FPC:fee_entrypoint_public	1,344	8,792 (-6%)	⚠️ 233 (+150%)	14,720 (-8%)	⚠️ 11,091 (+565%)	⚠️ 524,288 (+700%)	393 (-9%)
Token:transfer	1,312	8,792 (-6%)	1,756 (+8%)	14,720 (-8%)	12,939 (+11%)	524,288	393 (-9%)
AuthRegistry:set_authorized (avm)	19,226	N/A	N/A	91,264	1,364 (-2%)	N/A	N/A
FPC:prepare_fee (avm)	26,668	N/A	N/A	91,328	2,849 (-1%)	N/A	N/A
Token:transfer_public (avm)	42,918	N/A	N/A	91,328	3,879 (-1%)	N/A	N/A
AuthRegistry:consume (avm)	33,104	N/A	N/A	91,264	2,760 (-6%)	N/A	N/A
FPC:pay_refund (avm)	36,833	N/A	N/A	91,296	24,022 (+4%)	N/A	N/A
Benchmarking:create_note	1,344	8,792 (-6%)	465	N/A	N/A	N/A	N/A
SchnorrAccount:verify_private_authwit	1,280	8,792 (-6%)	40.4 (-3%)	N/A	N/A	N/A	N/A
Token:unshield	1,376	8,792 (-6%)	1,447 (+10%)	N/A	N/A	N/A	N/A
FPC:fee_entrypoint_private	1,376	8,792 (-6%)	1,987 (+9%)	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	69.3 (-5%)	13,790
GasToken:set_portal	16.6 (+11%)	3,339
Token:constructor	94.2 (+3%)	23,692
FPC:constructor	62.9 (+3%)	13,592
GasToken:mint_public	50.4	10,158
Token:mint_public	⚠️ 491 (+534%)	19,034
Token:assert_minter_and_mint	⚠️ 56.1 (-62%)	12,925
AuthRegistry:set_authorized	29.7 (+7%)	7,812
FPC:prepare_fee	103 (-5%)	15,062
Token:transfer_public	⚠️ 60.8 (+110%)	31,218
FPC:pay_refund	130 (+2%)	25,260
Benchmarking:increment_balance	2,190 (+11%)	15,267
Token:_increase_public_balance	⚠️ 54.1 (+263%)	15,006
FPC:pay_refund_with_shielded_rebate	114 (-25%)	26,347

Public DB Access

Time to access various public DBs.

Function	time_ms
get-nullifier-index	0.155 (+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	10.5 (+1%)	16.8	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	0.606 (+1%)	0.517	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_32_depth_ms	N/A	N/A	48.5 (+1%)	75.8	131 (-1%)	246 (+1%)	471 (-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	0.495 (+1%)	0.466	0.450 (-1%)	0.445 (+1%)	0.439 (-1%)
batch_insert_into_indexed_tree_20_depth_ms	N/A	N/A	59.5	112	183 (-1%)	355 (+1%)	693 (-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	0.502	0.501	0.483 (-1%)	0.480 (+1%)	0.475 (-1%)
batch_insert_into_indexed_tree_40_depth_ms	N/A	N/A	73.0	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	74,057	667,841

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, 7:29 AM EDT: @fcarreiro merged this pull request with Graphite.