core, trie: intermediate mempool between trie and database (#15857)

This commit reduces database I/O by not writing every state trie to disk.

1 files changed, 5 insertions, 3 deletions

diff --git a/eth/backend.go b/eth/backend.go
index bcd724c0c..94aad2310 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -144,9 +144,11 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
 		}
 		core.WriteBlockChainVersion(chainDb, core.BlockChainVersion)
 	}
-
-	vmConfig := vm.Config{EnablePreimageRecording: config.EnablePreimageRecording}
-	eth.blockchain, err = core.NewBlockChain(chainDb, eth.chainConfig, eth.engine, vmConfig)
+	var (
+		vmConfig    = vm.Config{EnablePreimageRecording: config.EnablePreimageRecording}
+		cacheConfig = &core.CacheConfig{Disabled: config.NoPruning, TrieNodeLimit: config.TrieCache, TrieTimeLimit: config.TrieTimeout}
+	)
+	eth.blockchain, err = core.NewBlockChain(chainDb, cacheConfig, eth.chainConfig, eth.engine, vmConfig)
 	if err != nil {
 		return nil, err
 	}