feat: add transactions len metrics of block processer (#650)

* feat: add transactions len metrics of block processer

* feat: bump version

core/state_processor.go

@@ -27,10 +27,13 @@ import (
 	"github.com/scroll-tech/go-ethereum/core/types"
 	"github.com/scroll-tech/go-ethereum/core/vm"
 	"github.com/scroll-tech/go-ethereum/crypto"
+	"github.com/scroll-tech/go-ethereum/metrics"
 	"github.com/scroll-tech/go-ethereum/params"
 	"github.com/scroll-tech/go-ethereum/rollup/fees"
 )
 
+var processorBlockTransactionGauge = metrics.NewRegisteredGauge("processor/block/transactions", nil)
+
 // StateProcessor is a basic Processor, which takes care of transitioning
 // state from one point to another.
 //
@@ -73,6 +76,7 @@ func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg
 	}
 	blockContext := NewEVMBlockContext(header, p.bc, p.config, nil)
 	vmenv := vm.NewEVM(blockContext, vm.TxContext{}, statedb, p.config, cfg)
+	processorBlockTransactionGauge.Update(int64(block.Transactions().Len()))
 	// Iterate over and process the individual transactions
 	for i, tx := range block.Transactions() {
 		msg, err := tx.AsMessage(types.MakeSigner(p.config, header.Number), header.BaseFee)

params/version.go

@@ -24,7 +24,7 @@ import (
 const (
 	VersionMajor = 5         // Major version component of the current release
 	VersionMinor = 1         // Minor version component of the current release
-	VersionPatch = 18        // Patch version component of the current release
+	VersionPatch = 19        // Patch version component of the current release
 	VersionMeta  = "mainnet" // Version metadata to append to the version string
 )