Dynamic cross-block cache size

[shekhirin]

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Problem

Currently we're allocating 4GB to inter-block caches, but on beefier machines with >32GB this is nothing, and we can allocate much more to increase the hit rate https://github.com/paradigmxyz/reth/blob/eb8102c7c27fa998acf291568ad62a91f007b3d9/crates/engine/primitives/src/config.rs#L20

Solution

Allocate 30% of available RAM to cross-block caches.