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9c2f43ed0e
* Speed up altair block processing >2x Like #3089, this PR drastially speeds up historical REST queries and other long state replays. * cache sync committee validator indices * use ~80mb less memory for validator pubkey mappings * batch-verify sync aggregate signature (fixes #2985) * document sync committee hack with head block vs sync message block * add batch signature verification failure tests Before: ``` ../env.sh nim c -d:release -r ncli_db --db:mainnet_0/db bench --start-slot:-1000 All time are ms Average, StdDev, Min, Max, Samples, Test Validation is turned off meaning that no BLS operations are performed 5830.675, 0.000, 5830.675, 5830.675, 1, Initialize DB 0.481, 1.878, 0.215, 59.167, 981, Load block from database 8422.566, 0.000, 8422.566, 8422.566, 1, Load state from database 6.996, 1.678, 0.042, 14.385, 969, Advance slot, non-epoch 93.217, 8.318, 84.192, 122.209, 32, Advance slot, epoch 20.513, 23.665, 11.510, 201.561, 981, Apply block, no slot processing 0.000, 0.000, 0.000, 0.000, 0, Database load 0.000, 0.000, 0.000, 0.000, 0, Database store ``` After: ``` 7081.422, 0.000, 7081.422, 7081.422, 1, Initialize DB 0.553, 2.122, 0.175, 66.692, 981, Load block from database 5439.446, 0.000, 5439.446, 5439.446, 1, Load state from database 6.829, 1.575, 0.043, 12.156, 969, Advance slot, non-epoch 94.716, 2.749, 88.395, 100.026, 32, Advance slot, epoch 11.636, 23.766, 4.889, 205.250, 981, Apply block, no slot processing 0.000, 0.000, 0.000, 0.000, 0, Database load 0.000, 0.000, 0.000, 0.000, 0, Database store ``` * add comment