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core: simplify component flushing in storeBlock

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Instead of flushing everything to `cache` and then to `bc.dao`, wrap `bc.dao`
directly for block/tx data and AERs and then flush to it. Block/transactions
are usually processed more quickly than other components, so they easily end
up in `cache` where they directly affect Seek performance for any executing
transaction.

Simple as it is this change improves voter NEO transfer benchmark with 1000
accounts by more than 25%, from ~18500 TPS to ~23500 TPS. It doesn't affect
much other cases.
This commit is contained in:
Roman Khimov 2021-09-22 13:38:53 +03:00
parent b66bc33cf9
commit c009356b73
1 changed files with 14 additions and 11 deletions
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25
pkg/core/blockchain.go
View file

@ -904,6 +904,8 @@ func (bc *Blockchain) GetStateSyncModule() blockchainer.StateSync {
func (bc *Blockchain) storeBlock(block *block.Block, txpool *mempool.Pool) error {
var (
cache = bc.dao.GetWrapped()
blockCache = bc.dao.GetWrapped()
aerCache = bc.dao.GetWrapped()
appExecResults = make([]*state.AppExecResult, 0, 2+len(block.Transactions))
aerchan = make(chan *state.AppExecResult, len(block.Transactions)/8) // Tested 8 and 4 with no practical difference, but feel free to test more and tune.
aerdone = make(chan error)
@ -911,7 +913,7 @@ func (bc *Blockchain) storeBlock(block *block.Block, txpool *mempool.Pool) error
)
go func() {
var (
kvcache = cache.GetWrapped()
kvcache = blockCache
writeBuf = io.NewBufBinWriter()
)
if err := kvcache.StoreAsBlock(block, writeBuf); err != nil {
@ -960,15 +962,11 @@ func (bc *Blockchain) storeBlock(block *block.Block, txpool *mempool.Pool) error
writeBuf.Reset()
}
}
_, err := kvcache.Persist()
if err != nil {
blockdone <- err
}
close(blockdone)
}()
go func() {
var (
kvcache = cache.GetWrapped()
kvcache = aerCache
writeBuf = io.NewBufBinWriter()
err error
appendBlock bool
@ -1010,11 +1008,6 @@ func (bc *Blockchain) storeBlock(block *block.Block, txpool *mempool.Pool) error
return
}
}
_, err = kvcache.Persist()
if err != nil {
aerdone <- err
}
close(aerdone)
}()
aer, err := bc.runPersist(bc.contracts.GetPersistScript(), block, cache, trigger.OnPersist)
@ -1129,6 +1122,16 @@ func (bc *Blockchain) storeBlock(block *block.Block, txpool *mempool.Pool) error
}
bc.lock.Lock()
_, err = blockCache.Persist()
if err != nil {
bc.lock.Unlock()
return err
}
_, err = aerCache.Persist()
if err != nil {
bc.lock.Unlock()
return err
}
_, err = cache.Persist()
if err != nil {
bc.lock.Unlock()