fix: introduce NativeBeaconStateView and simplify bindings

[twoeths]

Motivation

• it's tricky to use BitArray, which is defined in ssz for binding, see this concern

Description

• the native binding does not have to do anything with BitArray, use {uint8Array: Uint8Array; bitLen: number} instead, the binding needs to conform toIBeaconStateViewNative overall
• implement NativeBeaconStateView wrapper that conform to the public api of IBeaconStateViewLatestFork so beacon-node does not need to change. It also contains a cache layer so that it does not need to fetch native multiple times for the same data

[gemini-code-assist]

Code Review

This pull request introduces an AbstractBeaconStateView base class to abstract the executionPayloadAvailability getter, wrapping a minimal {uint8Array, bitLen} shape into a BitArray for consumers. The review feedback suggests optimizing this abstraction by checking if the raw value is already a BitArray to avoid redundant instantiation, and returning the BitArray directly from BeaconStateView to prevent creating temporary objects.

[github-actions]

⚠️ Performance Alert ⚠️

Possible performance regression was detected for some benchmarks.
Benchmark result of this commit is worse than the previous benchmark result exceeding threshold.

Benchmark suite	Current: f78a2e0	Previous: f715896	Ratio
phase0 getAttestationDeltas - 250000 worstcase	18.301 ms/op	5.3226 ms/op	3.44

Full benchmark results

Benchmark suite	Current: f78a2e0	Previous: f715896	Ratio
getPubkeys - index2pubkey - req 1000 vs - 250000 vc	1.2700 ms/op	900.60 us/op	1.41
getPubkeys - validatorsArr - req 1000 vs - 250000 vc	40.738 us/op	39.278 us/op	1.04
BLS verify - blst	751.37 us/op	701.64 us/op	1.07
BLS verifyMultipleSignatures 3 - blst	1.3577 ms/op	1.3146 ms/op	1.03
BLS verifyMultipleSignatures 8 - blst	2.1767 ms/op	2.0931 ms/op	1.04
BLS verifyMultipleSignatures 32 - blst	6.7844 ms/op	6.6452 ms/op	1.02
BLS verifyMultipleSignatures 64 - blst	13.154 ms/op	13.063 ms/op	1.01
BLS verifyMultipleSignatures 128 - blst	25.883 ms/op	25.542 ms/op	1.01
BLS deserializing 10000 signatures	652.12 ms/op	634.53 ms/op	1.03
BLS deserializing 100000 signatures	6.5873 s/op	6.2642 s/op	1.05
BLS verifyMultipleSignatures - same message - 3 - blst	711.11 us/op	792.59 us/op	0.90
BLS verifyMultipleSignatures - same message - 8 - blst	887.39 us/op	881.25 us/op	1.01
BLS verifyMultipleSignatures - same message - 32 - blst	1.4920 ms/op	1.5474 ms/op	0.96
BLS verifyMultipleSignatures - same message - 64 - blst	2.3045 ms/op	2.3132 ms/op	1.00
BLS verifyMultipleSignatures - same message - 128 - blst	4.0550 ms/op	3.9757 ms/op	1.02
BLS aggregatePubkeys 32 - blst	17.844 us/op	17.495 us/op	1.02
BLS aggregatePubkeys 128 - blst	62.136 us/op	62.679 us/op	0.99
getSlashingsAndExits - default max	63.546 us/op	46.489 us/op	1.37
getSlashingsAndExits - 2k	461.77 us/op	329.75 us/op	1.40
proposeBlockBody type=full, size=empty	691.05 us/op	677.61 us/op	1.02
isKnown best case - 1 super set check	168.00 ns/op	172.00 ns/op	0.98
isKnown normal case - 2 super set checks	165.00 ns/op	160.00 ns/op	1.03
isKnown worse case - 16 super set checks	165.00 ns/op	162.00 ns/op	1.02
validate api signedAggregateAndProof - struct	1.4759 ms/op	1.4759 ms/op	1.00
validate gossip signedAggregateAndProof - struct	1.4554 ms/op	1.4668 ms/op	0.99
batch validate gossip attestation - vc 640000 - chunk 32	103.78 us/op	104.46 us/op	0.99
batch validate gossip attestation - vc 640000 - chunk 64	92.307 us/op	93.023 us/op	0.99
batch validate gossip attestation - vc 640000 - chunk 128	86.200 us/op	85.986 us/op	1.00
batch validate gossip attestation - vc 640000 - chunk 256	82.665 us/op	82.075 us/op	1.01
bytes32 toHexString	281.00 ns/op	282.00 ns/op	1.00
bytes32 Buffer.toString(hex)	163.00 ns/op	158.00 ns/op	1.03
bytes32 Buffer.toString(hex) from Uint8Array	225.00 ns/op	223.00 ns/op	1.01
bytes32 Buffer.toString(hex) + 0x	162.00 ns/op	156.00 ns/op	1.04
Return object 10000 times	0.20680 ns/op	0.21100 ns/op	0.98
Throw Error 10000 times	3.1857 us/op	3.2239 us/op	0.99
toHex	84.115 ns/op	86.148 ns/op	0.98
Buffer.from	79.645 ns/op	78.985 ns/op	1.01
shared Buffer	49.915 ns/op	50.867 ns/op	0.98
fastMsgIdFn sha256 / 200 bytes	1.4500 us/op	1.4490 us/op	1.00
fastMsgIdFn h32 xxhash / 200 bytes	146.00 ns/op	161.00 ns/op	0.91
fastMsgIdFn h64 xxhash / 200 bytes	198.00 ns/op	203.00 ns/op	0.98
fastMsgIdFn sha256 / 1000 bytes	4.5860 us/op	4.6530 us/op	0.99
fastMsgIdFn h32 xxhash / 1000 bytes	235.00 ns/op	249.00 ns/op	0.94
fastMsgIdFn h64 xxhash / 1000 bytes	245.00 ns/op	255.00 ns/op	0.96
fastMsgIdFn sha256 / 10000 bytes	40.339 us/op	41.035 us/op	0.98
fastMsgIdFn h32 xxhash / 10000 bytes	1.2280 us/op	1.2700 us/op	0.97
fastMsgIdFn h64 xxhash / 10000 bytes	797.00 ns/op	832.00 ns/op	0.96
send data - 1000 256B messages	4.2946 ms/op	4.3675 ms/op	0.98
send data - 1000 512B messages	4.3522 ms/op	4.3062 ms/op	1.01
send data - 1000 1024B messages	4.6649 ms/op	4.3473 ms/op	1.07
send data - 1000 1200B messages	4.8694 ms/op	4.6494 ms/op	1.05
send data - 1000 2048B messages	4.8982 ms/op	4.7135 ms/op	1.04
send data - 1000 4096B messages	5.7350 ms/op	5.5779 ms/op	1.03
send data - 1000 16384B messages	66.201 ms/op	33.578 ms/op	1.97
send data - 1000 65536B messages	131.03 ms/op	126.68 ms/op	1.03
enrSubnets - fastDeserialize 64 bits	738.00 ns/op	754.00 ns/op	0.98
enrSubnets - ssz BitVector 64 bits	255.00 ns/op	257.00 ns/op	0.99
enrSubnets - fastDeserialize 4 bits	103.00 ns/op	106.00 ns/op	0.97
enrSubnets - ssz BitVector 4 bits	258.00 ns/op	268.00 ns/op	0.96
prioritizePeers score -10:0 att 32-0.1 sync 2-0	199.87 us/op	202.24 us/op	0.99
prioritizePeers score 0:0 att 32-0.25 sync 2-0.25	227.88 us/op	244.58 us/op	0.93
prioritizePeers score 0:0 att 32-0.5 sync 2-0.5	336.49 us/op	337.04 us/op	1.00
prioritizePeers score 0:0 att 64-0.75 sync 4-0.75	582.40 us/op	592.75 us/op	0.98
prioritizePeers score 0:0 att 64-1 sync 4-1	683.61 us/op	691.26 us/op	0.99
array of 16000 items push then shift	1.2209 us/op	1.2583 us/op	0.97
LinkedList of 16000 items push then shift	7.2450 ns/op	7.3190 ns/op	0.99
array of 16000 items push then pop	73.625 ns/op	68.227 ns/op	1.08
LinkedList of 16000 items push then pop	5.8510 ns/op	5.9070 ns/op	0.99
array of 24000 items push then shift	1.8104 us/op	1.8471 us/op	0.98
LinkedList of 24000 items push then shift	7.0220 ns/op	6.9420 ns/op	1.01
array of 24000 items push then pop	107.29 ns/op	94.938 ns/op	1.13
LinkedList of 24000 items push then pop	5.8340 ns/op	5.9150 ns/op	0.99
intersect bitArray bitLen 8	4.8010 ns/op	4.7100 ns/op	1.02
intersect array and set length 8	28.606 ns/op	28.827 ns/op	0.99
intersect bitArray bitLen 128	23.655 ns/op	23.715 ns/op	1.00
intersect array and set length 128	487.90 ns/op	487.78 ns/op	1.00
bitArray.getTrueBitIndexes() bitLen 128	1.1100 us/op	1.1050 us/op	1.00
bitArray.getTrueBitIndexes() bitLen 248	1.9000 us/op	1.9560 us/op	0.97
bitArray.getTrueBitIndexes() bitLen 512	3.7750 us/op	3.9390 us/op	0.96
Full columns - reconstruct all 6 blobs	187.20 us/op	201.96 us/op	0.93
Full columns - reconstruct half of the blobs out of 6	127.85 us/op	152.57 us/op	0.84
Full columns - reconstruct single blob out of 6	33.677 us/op	47.154 us/op	0.71
Half columns - reconstruct all 6 blobs	372.76 ms/op	379.95 ms/op	0.98
Half columns - reconstruct half of the blobs out of 6	187.94 ms/op	190.51 ms/op	0.99
Half columns - reconstruct single blob out of 6	67.495 ms/op	67.736 ms/op	1.00
Full columns - reconstruct all 10 blobs	229.22 us/op	289.76 us/op	0.79
Full columns - reconstruct half of the blobs out of 10	240.07 us/op	185.60 us/op	1.29
Full columns - reconstruct single blob out of 10	54.651 us/op	28.578 us/op	1.91
Half columns - reconstruct all 10 blobs	619.63 ms/op	621.12 ms/op	1.00
Half columns - reconstruct half of the blobs out of 10	314.75 ms/op	313.06 ms/op	1.01
Half columns - reconstruct single blob out of 10	67.263 ms/op	66.611 ms/op	1.01
Full columns - reconstruct all 20 blobs	530.41 us/op	885.64 us/op	0.60
Full columns - reconstruct half of the blobs out of 20	364.68 us/op	258.69 us/op	1.41
Full columns - reconstruct single blob out of 20	31.039 us/op	51.541 us/op	0.60
Half columns - reconstruct all 20 blobs	1.2569 s/op	1.2466 s/op	1.01
Half columns - reconstruct half of the blobs out of 20	626.65 ms/op	626.14 ms/op	1.00
Half columns - reconstruct single blob out of 20	68.197 ms/op	67.830 ms/op	1.01
Set add up to 64 items then delete first	2.1546 us/op	2.0233 us/op	1.06
OrderedSet add up to 64 items then delete first	3.5010 us/op	3.2477 us/op	1.08
Set add up to 64 items then delete last	2.1090 us/op	2.0511 us/op	1.03
OrderedSet add up to 64 items then delete last	3.2700 us/op	3.1988 us/op	1.02
Set add up to 64 items then delete middle	2.1123 us/op	2.0283 us/op	1.04
OrderedSet add up to 64 items then delete middle	4.7368 us/op	4.5530 us/op	1.04
Set add up to 128 items then delete first	4.1668 us/op	4.0474 us/op	1.03
OrderedSet add up to 128 items then delete first	6.5095 us/op	6.1664 us/op	1.06
Set add up to 128 items then delete last	3.7888 us/op	3.7599 us/op	1.01
OrderedSet add up to 128 items then delete last	5.7132 us/op	5.5743 us/op	1.02
Set add up to 128 items then delete middle	3.7438 us/op	3.7043 us/op	1.01
OrderedSet add up to 128 items then delete middle	11.393 us/op	11.636 us/op	0.98
Set add up to 256 items then delete first	7.7104 us/op	7.5901 us/op	1.02
OrderedSet add up to 256 items then delete first	12.002 us/op	11.807 us/op	1.02
Set add up to 256 items then delete last	7.4892 us/op	7.4189 us/op	1.01
OrderedSet add up to 256 items then delete last	11.791 us/op	11.223 us/op	1.05
Set add up to 256 items then delete middle	7.4383 us/op	7.4611 us/op	1.00
OrderedSet add up to 256 items then delete middle	34.424 us/op	34.372 us/op	1.00
pass gossip attestations to forkchoice per slot	2.5120 ms/op	2.4882 ms/op	1.01
forkChoice updateHead vc 100000 bc 64 eq 0	383.81 us/op	469.03 us/op	0.82
forkChoice updateHead vc 600000 bc 64 eq 0	2.2884 ms/op	2.3180 ms/op	0.99
forkChoice updateHead vc 1000000 bc 64 eq 0	3.7967 ms/op	3.8118 ms/op	1.00
forkChoice updateHead vc 600000 bc 320 eq 0	2.2875 ms/op	2.3023 ms/op	0.99
forkChoice updateHead vc 600000 bc 1200 eq 0	2.3369 ms/op	2.3129 ms/op	1.01
forkChoice updateHead vc 600000 bc 7200 eq 0	2.6740 ms/op	2.5947 ms/op	1.03
forkChoice updateHead vc 600000 bc 64 eq 1000	2.8816 ms/op	2.9163 ms/op	0.99
forkChoice updateHead vc 600000 bc 64 eq 10000	2.9447 ms/op	3.1321 ms/op	0.94
forkChoice updateHead vc 600000 bc 64 eq 300000	6.5416 ms/op	6.6203 ms/op	0.99
computeDeltas 1400000 validators 0% inactive	12.237 ms/op	12.444 ms/op	0.98
computeDeltas 1400000 validators 10% inactive	11.435 ms/op	11.714 ms/op	0.98
computeDeltas 1400000 validators 20% inactive	10.454 ms/op	10.666 ms/op	0.98
computeDeltas 1400000 validators 50% inactive	8.0352 ms/op	8.2176 ms/op	0.98
computeDeltas 2100000 validators 0% inactive	18.335 ms/op	18.632 ms/op	0.98
computeDeltas 2100000 validators 10% inactive	17.319 ms/op	17.362 ms/op	1.00
computeDeltas 2100000 validators 20% inactive	15.600 ms/op	15.772 ms/op	0.99
computeDeltas 2100000 validators 50% inactive	9.3323 ms/op	9.1998 ms/op	1.01
altair processAttestation - 250000 vs - 7PWei normalcase	2.5194 ms/op	1.8298 ms/op	1.38
altair processAttestation - 250000 vs - 7PWei worstcase	3.5035 ms/op	2.5459 ms/op	1.38
altair processAttestation - setStatus - 1/6 committees join	97.286 us/op	100.91 us/op	0.96
altair processAttestation - setStatus - 1/3 committees join	203.69 us/op	203.23 us/op	1.00
altair processAttestation - setStatus - 1/2 committees join	281.88 us/op	280.66 us/op	1.00
altair processAttestation - setStatus - 2/3 committees join	358.77 us/op	379.36 us/op	0.95
altair processAttestation - setStatus - 4/5 committees join	504.44 us/op	508.37 us/op	0.99
altair processAttestation - setStatus - 100% committees join	600.94 us/op	602.27 us/op	1.00
altair processBlock - 250000 vs - 7PWei normalcase	3.9641 ms/op	3.8067 ms/op	1.04
altair processBlock - 250000 vs - 7PWei normalcase hashState	14.247 ms/op	13.292 ms/op	1.07
altair processBlock - 250000 vs - 7PWei worstcase	21.897 ms/op	21.060 ms/op	1.04
altair processBlock - 250000 vs - 7PWei worstcase hashState	45.280 ms/op	40.573 ms/op	1.12
phase0 processBlock - 250000 vs - 7PWei normalcase	1.3630 ms/op	1.3669 ms/op	1.00
phase0 processBlock - 250000 vs - 7PWei worstcase	16.296 ms/op	17.020 ms/op	0.96
altair processEth1Data - 250000 vs - 7PWei normalcase	283.35 us/op	293.99 us/op	0.96
getExpectedWithdrawals 250000 eb:1,eth1:1,we:0,wn:0,smpl:16	5.1500 us/op	3.7400 us/op	1.38
getExpectedWithdrawals 250000 eb:0.95,eth1:0.1,we:0.05,wn:0,smpl:220	20.046 us/op	20.106 us/op	1.00
getExpectedWithdrawals 250000 eb:0.95,eth1:0.3,we:0.05,wn:0,smpl:43	5.6260 us/op	5.4780 us/op	1.03
getExpectedWithdrawals 250000 eb:0.95,eth1:0.7,we:0.05,wn:0,smpl:19	3.4290 us/op	3.4560 us/op	0.99
getExpectedWithdrawals 250000 eb:0.1,eth1:0.1,we:0,wn:0,smpl:1021	89.375 us/op	89.093 us/op	1.00
getExpectedWithdrawals 250000 eb:0.03,eth1:0.03,we:0,wn:0,smpl:11778	1.3777 ms/op	1.3500 ms/op	1.02
getExpectedWithdrawals 250000 eb:0.01,eth1:0.01,we:0,wn:0,smpl:16384	1.8080 ms/op	1.7643 ms/op	1.02
getExpectedWithdrawals 250000 eb:0,eth1:0,we:0,wn:0,smpl:16384	1.7947 ms/op	1.7761 ms/op	1.01
getExpectedWithdrawals 250000 eb:0,eth1:0,we:0,wn:0,nocache,smpl:16384	3.6160 ms/op	3.6749 ms/op	0.98
getExpectedWithdrawals 250000 eb:0,eth1:1,we:0,wn:0,smpl:16384	2.0258 ms/op	2.0248 ms/op	1.00
getExpectedWithdrawals 250000 eb:0,eth1:1,we:0,wn:0,nocache,smpl:16384	3.8993 ms/op	3.8102 ms/op	1.02
Tree 40 250000 create	343.03 ms/op	308.36 ms/op	1.11
Tree 40 250000 get(125000)	92.536 ns/op	92.436 ns/op	1.00
Tree 40 250000 set(125000)	1.0820 us/op	976.72 ns/op	1.11
Tree 40 250000 toArray()	13.101 ms/op	11.237 ms/op	1.17
Tree 40 250000 iterate all - toArray() + loop	13.052 ms/op	11.135 ms/op	1.17
Tree 40 250000 iterate all - get(i)	37.271 ms/op	35.191 ms/op	1.06
Array 250000 create	2.3621 ms/op	2.0821 ms/op	1.13
Array 250000 clone - spread	723.22 us/op	646.42 us/op	1.12
Array 250000 get(125000)	0.29200 ns/op	0.29200 ns/op	1.00
Array 250000 set(125000)	0.29400 ns/op	0.29700 ns/op	0.99
Array 250000 iterate all - loop	57.281 us/op	56.797 us/op	1.01
phase0 afterProcessEpoch - 250000 vs - 7PWei	56.418 ms/op	39.731 ms/op	1.42
Array.fill - length 1000000	2.1648 ms/op	1.9339 ms/op	1.12
Array push - length 1000000	9.0095 ms/op	7.2446 ms/op	1.24
Array.get	0.20684 ns/op	0.20251 ns/op	1.02
Uint8Array.get	0.23531 ns/op	0.23864 ns/op	0.99
phase0 beforeProcessEpoch - 250000 vs - 7PWei	16.945 ms/op	14.202 ms/op	1.19
altair processEpoch - mainnet_e81889	270.60 ms/op	258.16 ms/op	1.05
mainnet_e81889 - altair beforeProcessEpoch	14.719 ms/op	14.757 ms/op	1.00
mainnet_e81889 - altair processJustificationAndFinalization	6.3350 us/op	5.4650 us/op	1.16
mainnet_e81889 - altair processInactivityUpdates	3.4708 ms/op	3.4334 ms/op	1.01
mainnet_e81889 - altair processRewardsAndPenalties	19.722 ms/op	18.969 ms/op	1.04
mainnet_e81889 - altair processRegistryUpdates	532.00 ns/op	525.00 ns/op	1.01
mainnet_e81889 - altair processSlashings	128.00 ns/op	131.00 ns/op	0.98
mainnet_e81889 - altair processEth1DataReset	130.00 ns/op	126.00 ns/op	1.03
mainnet_e81889 - altair processEffectiveBalanceUpdates	2.3880 ms/op	1.3102 ms/op	1.82
mainnet_e81889 - altair processSlashingsReset	700.00 ns/op	667.00 ns/op	1.05
mainnet_e81889 - altair processRandaoMixesReset	1.2250 us/op	1.1080 us/op	1.11
mainnet_e81889 - altair processHistoricalRootsUpdate	127.00 ns/op	127.00 ns/op	1.00
mainnet_e81889 - altair processParticipationFlagUpdates	417.00 ns/op	424.00 ns/op	0.98
mainnet_e81889 - altair processSyncCommitteeUpdates	104.00 ns/op	104.00 ns/op	1.00
mainnet_e81889 - altair afterProcessEpoch	41.368 ms/op	41.587 ms/op	0.99
capella processEpoch - mainnet_e217614	826.16 ms/op	811.08 ms/op	1.02
mainnet_e217614 - capella beforeProcessEpoch	62.976 ms/op	55.783 ms/op	1.13
mainnet_e217614 - capella processJustificationAndFinalization	6.8010 us/op	5.5030 us/op	1.24
mainnet_e217614 - capella processInactivityUpdates	14.893 ms/op	15.504 ms/op	0.96
mainnet_e217614 - capella processRewardsAndPenalties	93.359 ms/op	85.625 ms/op	1.09
mainnet_e217614 - capella processRegistryUpdates	4.5450 us/op	4.4490 us/op	1.02
mainnet_e217614 - capella processSlashings	132.00 ns/op	135.00 ns/op	0.98
mainnet_e217614 - capella processEth1DataReset	128.00 ns/op	132.00 ns/op	0.97
mainnet_e217614 - capella processEffectiveBalanceUpdates	12.130 ms/op	11.803 ms/op	1.03
mainnet_e217614 - capella processSlashingsReset	682.00 ns/op	684.00 ns/op	1.00
mainnet_e217614 - capella processRandaoMixesReset	1.3340 us/op	1.1370 us/op	1.17
mainnet_e217614 - capella processHistoricalRootsUpdate	129.00 ns/op	131.00 ns/op	0.98
mainnet_e217614 - capella processParticipationFlagUpdates	427.00 ns/op	421.00 ns/op	1.01
mainnet_e217614 - capella afterProcessEpoch	107.10 ms/op	111.49 ms/op	0.96
phase0 processEpoch - mainnet_e58758	330.31 ms/op	295.05 ms/op	1.12
mainnet_e58758 - phase0 beforeProcessEpoch	68.611 ms/op	60.368 ms/op	1.14
mainnet_e58758 - phase0 processJustificationAndFinalization	6.7550 us/op	6.1540 us/op	1.10
mainnet_e58758 - phase0 processRewardsAndPenalties	16.263 ms/op	16.007 ms/op	1.02
mainnet_e58758 - phase0 processRegistryUpdates	2.2510 us/op	2.2720 us/op	0.99
mainnet_e58758 - phase0 processSlashings	135.00 ns/op	133.00 ns/op	1.02
mainnet_e58758 - phase0 processEth1DataReset	132.00 ns/op	131.00 ns/op	1.01
mainnet_e58758 - phase0 processEffectiveBalanceUpdates	811.31 us/op	824.40 us/op	0.98
mainnet_e58758 - phase0 processSlashingsReset	889.00 ns/op	863.00 ns/op	1.03
mainnet_e58758 - phase0 processRandaoMixesReset	1.3210 us/op	1.2640 us/op	1.05
mainnet_e58758 - phase0 processHistoricalRootsUpdate	135.00 ns/op	134.00 ns/op	1.01
mainnet_e58758 - phase0 processParticipationRecordUpdates	1.1720 us/op	1.0040 us/op	1.17
mainnet_e58758 - phase0 afterProcessEpoch	33.358 ms/op	33.668 ms/op	0.99
phase0 processEffectiveBalanceUpdates - 250000 normalcase	1.1163 ms/op	1.0120 ms/op	1.10
phase0 processEffectiveBalanceUpdates - 250000 worstcase 0.5	1.5611 ms/op	1.5817 ms/op	0.99
altair processInactivityUpdates - 250000 normalcase	12.811 ms/op	14.467 ms/op	0.89
altair processInactivityUpdates - 250000 worstcase	13.029 ms/op	13.412 ms/op	0.97
phase0 processRegistryUpdates - 250000 normalcase	2.1710 us/op	2.2860 us/op	0.95
phase0 processRegistryUpdates - 250000 badcase_full_deposits	145.86 us/op	138.30 us/op	1.05
phase0 processRegistryUpdates - 250000 worstcase 0.5	64.763 ms/op	56.791 ms/op	1.14
altair processRewardsAndPenalties - 250000 normalcase	16.216 ms/op	15.413 ms/op	1.05
altair processRewardsAndPenalties - 250000 worstcase	15.868 ms/op	14.547 ms/op	1.09
phase0 getAttestationDeltas - 250000 normalcase	5.3366 ms/op	8.3761 ms/op	0.64
phase0 getAttestationDeltas - 250000 worstcase	18.301 ms/op	5.3226 ms/op	3.44
phase0 processSlashings - 250000 worstcase	58.875 us/op	58.531 us/op	1.01
altair processSyncCommitteeUpdates - 250000	10.204 ms/op	10.139 ms/op	1.01
BeaconState.hashTreeRoot - No change	184.00 ns/op	162.00 ns/op	1.14
BeaconState.hashTreeRoot - 1 full validator	80.276 us/op	70.803 us/op	1.13
BeaconState.hashTreeRoot - 32 full validator	934.18 us/op	847.74 us/op	1.10
BeaconState.hashTreeRoot - 512 full validator	8.1997 ms/op	6.3600 ms/op	1.29
BeaconState.hashTreeRoot - 1 validator.effectiveBalance	103.06 us/op	88.940 us/op	1.16
BeaconState.hashTreeRoot - 32 validator.effectiveBalance	1.4824 ms/op	1.2658 ms/op	1.17
BeaconState.hashTreeRoot - 512 validator.effectiveBalance	18.691 ms/op	13.812 ms/op	1.35
BeaconState.hashTreeRoot - 1 balances	78.717 us/op	59.489 us/op	1.32
BeaconState.hashTreeRoot - 32 balances	769.63 us/op	667.36 us/op	1.15
BeaconState.hashTreeRoot - 512 balances	6.4515 ms/op	5.0513 ms/op	1.28
BeaconState.hashTreeRoot - 250000 balances	143.32 ms/op	113.97 ms/op	1.26
aggregationBits - 2048 els - zipIndexesInBitList	19.231 us/op	19.043 us/op	1.01
regular array get 100000 times	22.763 us/op	22.785 us/op	1.00
wrappedArray get 100000 times	22.732 us/op	22.788 us/op	1.00
arrayWithProxy get 100000 times	12.023 ms/op	9.5548 ms/op	1.26
ssz.Root.equals	21.317 ns/op	21.246 ns/op	1.00
byteArrayEquals	21.268 ns/op	21.076 ns/op	1.01
Buffer.compare	8.8080 ns/op	8.7540 ns/op	1.01
processSlot - 1 slots	8.7190 us/op	8.6020 us/op	1.01
processSlot - 32 slots	2.0089 ms/op	1.6941 ms/op	1.19
getEffectiveBalanceIncrementsZeroInactive - 250000 vs - 7PWei	5.5222 ms/op	3.0272 ms/op	1.82
getCommitteeAssignments - req 1 vs - 250000 vc	1.6918 ms/op	1.6869 ms/op	1.00
getCommitteeAssignments - req 100 vs - 250000 vc	3.4402 ms/op	3.4173 ms/op	1.01
getCommitteeAssignments - req 1000 vs - 250000 vc	3.7072 ms/op	3.6765 ms/op	1.01
findModifiedValidators - 10000 modified validators	634.32 ms/op	637.81 ms/op	0.99
findModifiedValidators - 1000 modified validators	393.73 ms/op	446.60 ms/op	0.88
findModifiedValidators - 100 modified validators	274.32 ms/op	277.04 ms/op	0.99
findModifiedValidators - 10 modified validators	211.51 ms/op	201.50 ms/op	1.05
findModifiedValidators - 1 modified validators	161.11 ms/op	136.29 ms/op	1.18
findModifiedValidators - no difference	151.68 ms/op	151.47 ms/op	1.00
migrate state 1500000 validators, 3400 modified, 2000 new	3.0593 s/op	2.7766 s/op	1.10
RootCache.getBlockRootAtSlot - 250000 vs - 7PWei	3.7800 ns/op	3.7100 ns/op	1.02
state getBlockRootAtSlot - 250000 vs - 7PWei	382.53 ns/op	333.11 ns/op	1.15
computeProposerIndex 100000 validators	1.3392 ms/op	1.3008 ms/op	1.03
getNextSyncCommitteeIndices 1000 validators	2.8718 ms/op	2.8205 ms/op	1.02
getNextSyncCommitteeIndices 10000 validators	25.114 ms/op	24.877 ms/op	1.01
getNextSyncCommitteeIndices 100000 validators	87.812 ms/op	84.644 ms/op	1.04
computeProposers - vc 250000	557.56 us/op	543.84 us/op	1.03
computeEpochShuffling - vc 250000	39.795 ms/op	38.696 ms/op	1.03
getNextSyncCommittee - vc 250000	9.5235 ms/op	9.3502 ms/op	1.02
nodejs block root to RootHex using toHex	88.940 ns/op	89.126 ns/op	1.00
nodejs block root to RootHex using toRootHex	51.514 ns/op	51.254 ns/op	1.01
nodejs fromHex(blob)	742.09 us/op	703.07 us/op	1.06
nodejs fromHexInto(blob)	627.33 us/op	620.88 us/op	1.01
nodejs block root to RootHex using the deprecated toHexString	549.24 ns/op	475.04 ns/op	1.16
nodejs byteArrayEquals 32 bytes (block root)	25.805 ns/op	25.540 ns/op	1.01
nodejs byteArrayEquals 48 bytes (pubkey)	37.367 ns/op	37.097 ns/op	1.01
nodejs byteArrayEquals 96 bytes (signature)	33.660 ns/op	33.009 ns/op	1.02
nodejs byteArrayEquals 1024 bytes	41.686 ns/op	40.691 ns/op	1.02
nodejs byteArrayEquals 131072 bytes (blob)	1.7576 us/op	1.7302 us/op	1.02
browser block root to RootHex using toHex	143.93 ns/op	141.75 ns/op	1.02
browser block root to RootHex using toRootHex	131.34 ns/op	129.11 ns/op	1.02
browser fromHex(blob)	1.5226 ms/op	1.4315 ms/op	1.06
browser fromHexInto(blob)	625.45 us/op	618.32 us/op	1.01
browser block root to RootHex using the deprecated toHexString	363.08 ns/op	464.64 ns/op	0.78
browser byteArrayEquals 32 bytes (block root)	27.826 ns/op	27.767 ns/op	1.00
browser byteArrayEquals 48 bytes (pubkey)	39.448 ns/op	39.241 ns/op	1.01
browser byteArrayEquals 96 bytes (signature)	73.837 ns/op	73.322 ns/op	1.01
browser byteArrayEquals 1024 bytes	751.79 ns/op	745.88 ns/op	1.01
browser byteArrayEquals 131072 bytes (blob)	94.615 us/op	93.904 us/op	1.01

by benchmarkbot/action

[wemeetagain]

How would we hook the NativeBeaconStateView to AbstractBeaconStateView?
I don't understand how the POJO object returned from the NativeBeaconStateView gets turned into a BitArray here

[twoeths]

How would we hook the NativeBeaconStateView to AbstractBeaconStateView?
I don't understand how the POJO object returned from the NativeBeaconStateView gets turned into a BitArray here

I did not fully implement the solution. The idea is to keep IBeaconStateViewLatestFork with BitArray for beacon-node to work with, while separate to an IBeaconStateViewNative interface with {uint8Array: Uint8Array; bitLen: number} for native to implement

[twoeths]

@wemeetagain I ended up with implementing NativeBeaconStateView, binding needs to implement IBeaconStateViewNative
at a 1st glance, it feels too much, but we need a cache layer inside NativeBeaconStateView anyway, ie we should not always call native for the same data from NodeJS side
this makes it ready to switch to NativeBeaconStateView later

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 52.56%. Comparing base (fc6798b) to head (376be33).
⚠️ Report is 161 commits behind head on unstable.

Additional details and impacted files

@@             Coverage Diff              @@
##           unstable    #9412      +/-   ##
============================================
+ Coverage     52.46%   52.56%   +0.09%     
============================================
  Files           848      848              
  Lines         62953    60937    -2016     
  Branches       4658     4485     -173     
============================================
- Hits          33030    32031     -999     
+ Misses        29855    28844    -1011     
+ Partials         68       62       -6     

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Export the native view contract for consumers

When the Zig/.node binding is built outside this package, it cannot import this wrapper from @lodestar/state-transition: packages/state-transition/package.json exposes only the root entry point, and src/index.ts does not re-export NativeBeaconStateView or IBeaconStateViewNative (a repo-wide search also shows no exported stateView subpath). The tests use relative paths, so they do not catch that the new binding contract is unreachable to external native consumers; export the wrapper/type from the package entry point or an exported subpath.

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[wemeetagain]

at a 1st glance, it feels too much, but we need a cache layer

totally agree. Imo this looks great. Also gives us some flexibility on the lodestar-z side.

One thing now tho, I don't think we need the AbstractBeaconStateView. My preference is for a concrete implementation on both sides. For example, the TS implementation shouldn't need the bitarray wrapper! its just needed for the native wrapper. So lets just leave it there.

[spiral-ladder]

So AbstractBeaconStateView is an additional layer for APIs incompatible with the incoming zig native view?

[twoeths]

So AbstractBeaconStateView is an additional layer for APIs incompatible with the incoming zig native view?

just removed it, the binding layer needs to follow IBeaconStateViewNative after this PR, which avoid BitArray and use the POJO {uint8Array: Uint8Array; bitLen: number} instead