feat(avm)!: make JUMP(I) 16-bit

[fcarreiro]

Earns ~2-5%.

I did not add an 8bit version because the jump currently rarely fits, and once we move to byte-indexed PC, it will almost never fit.

[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 (FeeJuice:_increase_public_balance): 47.7 (-70%)
• avm_simulation_time_ms (Token:mint_public): 309 (+581%)
• avm_simulation_time_ms (Token:assert_minter_and_mint): 391 (+18%)
• avm_simulation_bytecode_size_in_bytes (FeeJuice:_increase_public_balance): 1,732 (-24%)
• avm_simulation_bytecode_size_in_bytes (FeeJuice:set_portal): 1,746 (-33%)
• avm_simulation_bytecode_size_in_bytes (Token:constructor): 9,230 (-29%)
• avm_simulation_bytecode_size_in_bytes (FPC:constructor): 5,377 (-31%)
• avm_simulation_bytecode_size_in_bytes (FeeJuice:check_balance): 1,467 (-27%)
• avm_simulation_bytecode_size_in_bytes (Token:mint_public): 3,339 (-25%)
• avm_simulation_bytecode_size_in_bytes (Token:assert_minter_and_mint): 2,193 (-25%)
• avm_simulation_bytecode_size_in_bytes (AuthRegistry:set_authorized): 670 (-29%)
• avm_simulation_bytecode_size_in_bytes (FPC:prepare_fee): 2,621 (-34%)
• avm_simulation_bytecode_size_in_bytes (Token:transfer_public): 6,306 (-29%)
• avm_simulation_bytecode_size_in_bytes (FPC:pay_refund): 3,282 (-33%)
• avm_simulation_bytecode_size_in_bytes (Benchmarking:increment_balance): 2,124 (-32%)
• avm_simulation_bytecode_size_in_bytes (Token:_increase_public_balance): 1,738 (-23%)
• avm_simulation_bytecode_size_in_bytes (FPC:pay_refund_with_shielded_rebate): 3,282 (-33%)

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	5,748	1,545	705 (+2%)	758 (-1%)	775
proof_construction_time_sha256_30_ms	11,822 (+3%)	3,160 (+4%)	1,402 (+2%)	1,436 (+1%)	1,475 (+2%)
proof_construction_time_sha256_100_ms	44,005 (-3%)	11,741	5,408 (-6%)	6,167 (+4%)	5,354
proof_construction_time_poseidon_hash_ms	79.0 (+1%)	34.0	34.0	58.0	88.0
proof_construction_time_poseidon_hash_30_ms	1,525	415	200 (+1%)	230	272 (+3%)
proof_construction_time_poseidon_hash_100_ms	5,651	1,545 (+3%)	675 (+1%)	733 (+1%)	751 (+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	50,208	92,972	178,024
l1_rollup_execution_gas	843,049	1,576,709	3,361,817
l2_block_processing_time_in_ms	253	443 (-3%)	791 (-2%)
l2_block_building_time_in_ms	11,466	22,658 (+1%)	44,707
l2_block_rollup_simulation_time_in_ms	11,465	22,658 (+1%)	44,707
l2_block_public_tx_process_time_in_ms	9,786	20,954 (+1%)	42,990

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	3,297 (-1%)	4,246 (-3%)
node_database_size_in_bytes	14,188,784	18,178,288
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	73.8 (-2%)	378	21,027	44,933	N/A
private-kernel-inner	142 (+1%)	676	71,803	45,067	N/A
private-kernel-reset-tiny	279 (-3%)	668 (-1%)	64,669	44,922	N/A
private-kernel-tail	151 (-4%)	130 (+3%)	50,553	57,178	N/A
base-parity	5.54	N/A	160	96.0	N/A
root-parity	35.3	N/A	73,964	96.0	N/A
base-rollup	2,590 (+1%)	N/A	189,128	664	N/A
block-root-rollup	41.3	N/A	58,217	2,448	N/A
public-kernel-setup	84.3 (-1%)	N/A	114,433	79,670	N/A
public-kernel-app-logic	98.0	N/A	114,251	79,670	N/A
public-kernel-tail	842	N/A	487,098	16,414	N/A
private-kernel-reset-small	268 (-1%)	N/A	66,345	45,629	N/A
private-kernel-tail-to-public	794 (+1%)	591	449,631	1,825	N/A
public-kernel-teardown	83.6	N/A	114,697	79,670	N/A
merge-rollup	20.2 (+1%)	N/A	38,182	664	N/A
undefined	N/A	N/A	N/A	N/A	86,119 (+3%)

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	342
ContractInstanceDeployer:deploy	1,408	11,731	18.3 (+1%)
MultiCallEntrypoint:entrypoint	1,920	11,731	421 (+1%)
FeeJuice:deploy	1,376	11,731	384 (-1%)
SchnorrAccount:constructor	1,312	11,731	60.1 (+1%)
SchnorrAccount:entrypoint	2,336	11,731	366 (-1%)
FeeJuice:claim	1,344	11,731	37.2
Token:privately_mint_private_note	1,280	11,731	69.0 (-5%)
FPC:fee_entrypoint_public	1,344	11,731	23.9 (-9%)
Token:transfer	1,312	11,731	208
Benchmarking:create_note	1,344	11,731	73.4
SchnorrAccount:verify_private_authwit	1,280	11,731	26.7
Token:unshield	1,376	11,731	489
FPC:fee_entrypoint_private	1,376	11,731	644 (-7%)

AVM Simulation

Time to simulate various public functions in the AVM.

Function	time_ms	bytecode_size_in_bytes
FeeJuice:_increase_public_balance	⚠️ 47.7 (-70%)	⚠️ 1,732 (-24%)
FeeJuice:set_portal	13.4 (-6%)	⚠️ 1,746 (-33%)
Token:constructor	79.3 (+10%)	⚠️ 9,230 (-29%)
FPC:constructor	48.2 (+2%)	⚠️ 5,377 (-31%)
FeeJuice:check_balance	37.2 (-4%)	⚠️ 1,467 (-27%)
Token:mint_public	⚠️ 309 (+581%)	⚠️ 3,339 (-25%)
Token:assert_minter_and_mint	⚠️ 391 (+18%)	⚠️ 2,193 (-25%)
AuthRegistry:set_authorized	38.0 (-20%)	⚠️ 670 (-29%)
FPC:prepare_fee	65.3 (-9%)	⚠️ 2,621 (-34%)
Token:transfer_public	18.2 (-15%)	⚠️ 6,306 (-29%)
FPC:pay_refund	41.0 (+11%)	⚠️ 3,282 (-33%)
Benchmarking:increment_balance	1,229 (+1%)	⚠️ 2,124 (-32%)
Token:_increase_public_balance	38.4 (+2%)	⚠️ 1,738 (-23%)
FPC:pay_refund_with_shielded_rebate	49.9 (-4%)	⚠️ 3,282 (-33%)

Public DB Access

Time to access various public DBs.

Function	time_ms
get-nullifier-index	0.165 (-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	2.16 (+1%)	3.94 (+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%)	0.111 (+2%)	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%)	17.8	30.8 (-1%)	59.2 (-2%)	112 (-3%)
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	0.106 (-1%)	0.103	0.0998 (-1%)	0.102 (-2%)	0.0989 (-4%)
batch_insert_into_indexed_tree_20_depth_ms	N/A	N/A	14.1 (-1%)	25.4 (-3%)	43.7 (-2%)	82.7 (-1%)	161 (-2%)
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	0.107 (-1%)	0.103 (-3%)	0.105 (-2%)	0.103	0.103 (-2%)
batch_insert_into_indexed_tree_40_depth_ms	N/A	N/A	16.1 (-2%)	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	0.106 (-2%)	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 | |
| - | |

[fcarreiro]

Merge activity

• Sep 9, 3:15 PM EDT: @fcarreiro started a stack merge that includes this pull request via Graphite.
• Sep 9, 6:19 PM EDT: Graphite couldn't merge this pull request because a downstack PR feat(avm)!: variants for SET opcode #8441 failed to merge.
• Sep 9, 6:22 PM EDT: @fcarreiro started a stack merge that includes this pull request via Graphite.
• Sep 9, 6:25 PM EDT: Graphite rebased this pull request as part of a merge.
• Sep 9, 7:34 PM EDT: @fcarreiro merged this pull request with Graphite.