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feat: collation improvement at the tip of the chain #144

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feat: collation improvement at the tip of the chain #144

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12 changes: 7 additions & 5 deletions execution/stagedsync/exec3.go
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Original file line number Diff line number Diff line change
Expand Up @@ -241,14 +241,16 @@ func ExecV3(ctx context.Context,
chainReader := NewChainReaderImpl(cfg.chainConfig, applyTx, blockReader, logger)
agg := cfg.db.(dbstate.HasAgg).Agg().(*dbstate.Aggregator)
if !inMemExec && !isMining {
// Always use 4 workers for file building to keep chaindata small.
// Chain-tip mode with only 1 worker can't keep up with high-throughput chains
// like Polygon, causing MDBX ReclaimableSpace to grow unbounded.
// 4 workers = all 4 domains (Accounts, Storage, Code, Commitment) in parallel.
agg.SetCollateAndBuildWorkers(min(4, estimate.StateV3Collate.Workers()))
agg.SetMergeWorkers(min(2, estimate.StateV3Collate.Workers()))
if initialCycle {
agg.SetCollateAndBuildWorkers(min(2, estimate.StateV3Collate.Workers()))
agg.SetMergeWorkers(min(1, estimate.StateV3Collate.Workers()))
agg.SetCompressWorkers(estimate.CompressSnapshot.Workers())
} else {
agg.SetCollateAndBuildWorkers(1)
agg.SetMergeWorkers(1)
agg.SetCompressWorkers(1)
agg.SetCompressWorkers(min(2, estimate.CompressSnapshot.Workers()))
}
}

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