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cmd, core, eth, light, trie: add trie read caching layer

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This commit is contained in:
Péter Szilágyi
2018-11-12 18:47:34 +02:00
parent 9a000601c6
commit 434dd5bc00
33 changed files with 1660 additions and 127 deletions
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21
core/blockchain.go
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@ -68,9 +68,10 @@ const (
// CacheConfig contains the configuration values for the trie caching/pruning
// that's resident in a blockchain.
type CacheConfig struct {
Disabled bool // Whether to disable trie write caching (archive node)
TrieNodeLimit int // Memory limit (MB) at which to flush the current in-memory trie to disk
TrieTimeLimit time.Duration // Time limit after which to flush the current in-memory trie to disk
Disabled bool // Whether to disable trie write caching (archive node)
TrieCleanLimit int // Memory allowance (MB) to use for caching trie nodes in memory
TrieDirtyLimit int // Memory limit (MB) at which to start flushing dirty trie nodes to disk
TrieTimeLimit time.Duration // Time limit after which to flush the current in-memory trie to disk
}
// BlockChain represents the canonical chain given a database with a genesis
@ -140,8 +141,9 @@ type BlockChain struct {
func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *params.ChainConfig, engine consensus.Engine, vmConfig vm.Config, shouldPreserve func(block *types.Block) bool) (*BlockChain, error) {
if cacheConfig == nil {
cacheConfig = &CacheConfig{
TrieNodeLimit: 256,
TrieTimeLimit: 5 * time.Minute,
TrieCleanLimit: 256,
TrieDirtyLimit: 256,
TrieTimeLimit: 5 * time.Minute,
}
}
bodyCache, _ := lru.New(bodyCacheLimit)
@ -156,7 +158,7 @@ func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *par
cacheConfig: cacheConfig,
db: db,
triegc: prque.New(nil),
stateCache: state.NewDatabase(db),
stateCache: state.NewDatabaseWithCache(db, cacheConfig.TrieCleanLimit),
quit: make(chan struct{}),
shouldPreserve: shouldPreserve,
bodyCache: bodyCache,
@ -393,6 +395,11 @@ func (bc *BlockChain) StateAt(root common.Hash) (*state.StateDB, error) {
return state.New(root, bc.stateCache)
}
// StateCache returns the caching database underpinning the blockchain instance.
func (bc *BlockChain) StateCache() state.Database {
return bc.stateCache
}
// Reset purges the entire blockchain, restoring it to its genesis state.
func (bc *BlockChain) Reset() error {
return bc.ResetWithGenesisBlock(bc.genesisBlock)
@ -938,7 +945,7 @@ func (bc *BlockChain) WriteBlockWithState(block *types.Block, receipts []*types.
// If we exceeded our memory allowance, flush matured singleton nodes to disk
var (
nodes, imgs = triedb.Size()
limit = common.StorageSize(bc.cacheConfig.TrieNodeLimit) * 1024 * 1024
limit = common.StorageSize(bc.cacheConfig.TrieDirtyLimit) * 1024 * 1024
)
if nodes > limit || imgs > 4*1024*1024 {
triedb.Cap(limit - ethdb.IdealBatchSize)