feat(avm)!: variants for MOV opcode

[fcarreiro]

Yields an 11% to 21% reduction in bytecode size:

avm_simulation_bytecode_size_in_bytes (Token:constructor): 10,658 (-18%)
avm_simulation_bytecode_size_in_bytes (FPC:constructor): 6,144 (-21%)
avm_simulation_bytecode_size_in_bytes (FPC:prepare_fee): 3,089 (-21%)
avm_simulation_bytecode_size_in_bytes (Token:transfer_public): 7,401 (-17%)
avm_simulation_bytecode_size_in_bytes (FPC:pay_refund): 3,911 (-19%)
avm_simulation_bytecode_size_in_bytes (Benchmarking:increment_balance): 2,620 (-16%)
avm_simulation_bytecode_size_in_bytes (FPC:pay_refund_with_shielded_rebate): 3,911 (-19%)

There are some gas-related things to cleanup later.

[fcarreiro]

• feat(avm)!: make JUMP(I) 16-bit #8443
• feat(avm)!: variants for SET opcode #8441
• feat(avm)!: variants for MOV opcode #8440 👈
• feat(avm-transpiler): optionally count opcode types #8439
• master

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[AztecBot]

Benchmark results

Metrics with a significant change:

• avm_simulation_time_ms (Token:transfer_public): 15.6 (-50%)
• avm_simulation_bytecode_size_in_bytes (Token:constructor): 10,680 (-18%)
• avm_simulation_bytecode_size_in_bytes (FPC:constructor): 6,166 (-21%)
• avm_simulation_bytecode_size_in_bytes (FPC:prepare_fee): 3,111 (-21%)
• avm_simulation_bytecode_size_in_bytes (Token:transfer_public): 7,423 (-17%)
• avm_simulation_bytecode_size_in_bytes (FPC:pay_refund): 3,933 (-19%)
• avm_simulation_bytecode_size_in_bytes (Benchmarking:increment_balance): 2,642 (-16%)
• avm_simulation_bytecode_size_in_bytes (FPC:pay_refund_with_shielded_rebate): 3,933 (-19%)

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	5,736 (-1%)	1,544	710 (+2%)	762 (-1%)	775
proof_construction_time_sha256_30_ms	11,415 (-1%)	3,049	1,369 (+1%)	1,415	1,458 (+1%)
proof_construction_time_sha256_100_ms	45,171	11,759	5,435	5,868 (-1%)	5,399 (+1%)
proof_construction_time_poseidon_hash_ms	78.0	34.0	34.0	57.0 (-2%)	87.0
proof_construction_time_poseidon_hash_30_ms	1,526	418 (+1%)	200 (+1%)	227 (+2%)	267 (-1%)
proof_construction_time_poseidon_hash_100_ms	5,624 (-1%)	1,498	666	728 (-2%)	744 (-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	4,356	7,876	14,884
l1_rollup_calldata_gas	50,256	92,972	178,144
l1_rollup_execution_gas	843,097	1,576,709	3,361,937
l2_block_processing_time_in_ms	247 (+1%)	444 (-1%)	811 (+1%)
l2_block_building_time_in_ms	11,493 (-1%)	22,585	44,876
l2_block_rollup_simulation_time_in_ms	11,492 (-1%)	22,585	44,876
l2_block_public_tx_process_time_in_ms	9,829	20,887 (+1%)	43,157

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	3,389 (+1%)	4,283 (+2%)
node_database_size_in_bytes	14,196,976	18,174,192
pxe_database_size_in_bytes	16,258	26,818

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
private-kernel-init	71.1	375 (-1%)	21,027	44,933	N/A
private-kernel-inner	138	673	71,803	45,067	N/A
private-kernel-reset-tiny	293 (+1%)	672 (+1%)	64,669	44,922	N/A
private-kernel-tail	151 (+1%)	127 (-1%)	50,553	57,178	N/A
base-parity	5.60	N/A	160	96.0	N/A
root-parity	35.0	N/A	73,964	96.0	N/A
base-rollup	2,630	N/A	189,128	664	N/A
block-root-rollup	41.7 (+1%)	N/A	58,217	2,448	N/A
public-kernel-setup	83.8 (-2%)	N/A	114,433	79,670	N/A
public-kernel-app-logic	97.6	N/A	114,251	79,670	N/A
public-kernel-tail	843	N/A	487,098	16,414	N/A
private-kernel-reset-small	270	N/A	66,345	45,629	N/A
private-kernel-tail-to-public	779 (-1%)	593 (-1%)	449,631	1,825	N/A
public-kernel-teardown	82.8 (-1%)	N/A	114,697	79,670	N/A
merge-rollup	20.4 (+3%)	N/A	38,182	664	N/A
undefined	N/A	N/A	N/A	N/A	81,269 (-4%)

Stats on running time collected for app circuits

Function	input_size_in_bytes	output_size_in_bytes	witness_generation_time_in_ms
ContractClassRegisterer:register	1,344	11,731	344 (+1%)
ContractInstanceDeployer:deploy	1,408	11,731	18.2
MultiCallEntrypoint:entrypoint	1,920	11,731	424 (+1%)
FeeJuice:deploy	1,376	11,731	388
SchnorrAccount:constructor	1,312	11,731	60.6 (+1%)
SchnorrAccount:entrypoint	2,336	11,731	372 (+1%)
FeeJuice:claim	1,344	11,731	35.1 (-1%)
Token:privately_mint_private_note	1,280	11,731	67.6
FPC:fee_entrypoint_public	1,344	11,731	24.4 (+1%)
Token:transfer	1,312	11,731	210 (+1%)
Benchmarking:create_note	1,344	11,731	73.2 (-1%)
SchnorrAccount:verify_private_authwit	1,280	11,731	27.2 (-5%)
Token:unshield	1,376	11,731	513 (-1%)
FPC:fee_entrypoint_private	1,376	11,731	725 (+7%)

AVM Simulation

Time to simulate various public functions in the AVM.

Function	time_ms	bytecode_size_in_bytes
FeeJuice:_increase_public_balance	164 (+1%)	2,015 (-12%)
FeeJuice:set_portal	12.2 (+2%)	2,230 (-15%)
Token:constructor	71.4 (-1%)	⚠️ 10,680 (-18%)
FPC:constructor	45.9 (-6%)	⚠️ 6,166 (-21%)
FeeJuice:check_balance	37.0	1,762 (-12%)
Token:mint_public	315 (+1%)	3,857 (-13%)
Token:assert_minter_and_mint	52.3 (-15%)	2,549 (-13%)
AuthRegistry:set_authorized	37.4 (-19%)	845 (-11%)
FPC:prepare_fee	64.7 (-10%)	⚠️ 3,111 (-21%)
Token:transfer_public	⚠️ 15.6 (-50%)	⚠️ 7,423 (-17%)
FPC:pay_refund	43.4 (-4%)	⚠️ 3,933 (-19%)
Benchmarking:increment_balance	1,226	⚠️ 2,642 (-16%)
Token:_increase_public_balance	39.9 (+3%)	2,016 (-11%)
FPC:pay_refund_with_shielded_rebate	53.5 (+3%)	⚠️ 3,933 (-19%)

Public DB Access

Time to access various public DBs.

Function	time_ms
get-nullifier-index	0.160 (-5%)

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	2.16	3.85 (+1%)	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_16_depth_hash_count	16.7	31.8	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_16_depth_hash_ms	0.113 (+1%)	0.108 (+1%)	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_32_depth_ms	N/A	N/A	11.1 (-1%)	17.4	30.5	59.4	112 (+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	0.107 (-1%)	0.102	0.0996	0.102	0.101 (+1%)
batch_insert_into_indexed_tree_20_depth_ms	N/A	N/A	14.1 (-1%)	25.6 (-1%)	43.8	82.5 (-1%)	161 (+1%)
batch_insert_into_indexed_tree_20_depth_hash_count	N/A	N/A	109	207	357	691	1,363
batch_insert_into_indexed_tree_20_depth_hash_ms	N/A	N/A	0.108	0.103 (-1%)	0.106	0.102	0.102
batch_insert_into_indexed_tree_40_depth_ms	N/A	N/A	16.0 (-1%)	N/A	N/A	N/A	N/A
batch_insert_into_indexed_tree_40_depth_hash_count	N/A	N/A	129	N/A	N/A	N/A	N/A
batch_insert_into_indexed_tree_40_depth_hash_ms	N/A	N/A	0.105 (-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	72,416	668,302

Transaction size based on fee payment method

| Metric | |
| - | |

[dbanks12]

Very nice!

[fcarreiro]

Merge activity

• Sep 9, 3:15 PM EDT: @fcarreiro started a stack merge that includes this pull request via Graphite.
• Sep 9, 3:17 PM EDT: Graphite rebased this pull request as part of a merge.
• Sep 9, 4:34 PM EDT: @fcarreiro merged this pull request with Graphite.