From dd692b02e6947b8a5177dff553b05f7d5d66b670 Mon Sep 17 00:00:00 2001
From: Nicholas Pettas <nick@faircrypto.org>
Date: Wed, 17 Apr 2024 11:02:28 -0700
Subject: [PATCH] add gas tip metrics (#23)

---
 evmcore/tx_pool.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/evmcore/tx_pool.go b/evmcore/tx_pool.go
index b8b552f9b..8e5ed3fdf 100644
--- a/evmcore/tx_pool.go
+++ b/evmcore/tx_pool.go
@@ -118,6 +118,8 @@ var (
 	underpricedMinAcceptedPriceTxCounter          = metrics.GetOrRegisterMeter("txpool/underpriced/minaccepted", nil)
 	underpricedRecommendedTipTxCounter            = metrics.GetOrRegisterMeter("txpool/underpriced/recommendedtip", nil)
 	underpricedRecommendedTipAndMinPriceTxCounter = metrics.GetOrRegisterMeter("txpool/underpriced/recommendedtipandminprice", nil)
+	minPriceGauge                                 = metrics.GetOrRegisterGauge("txpool/minprice", nil)
+	recommendedTipGauge                           = metrics.GetOrRegisterGauge("txpool/recommendedtip", nil)
 
 	pendingGauge = metrics.GetOrRegisterGauge("txpool/pending", nil)
 	queuedGauge  = metrics.GetOrRegisterGauge("txpool/queued", nil)
@@ -632,6 +634,8 @@ func (pool *TxPool) validateTx(tx *types.Transaction, local bool) error {
 	}
 	// Ensure Opera-specific hard bounds
 	if recommendedGasTip, minPrice := pool.chain.EffectiveMinTip(), pool.chain.MinGasPrice(); recommendedGasTip != nil && minPrice != nil {
+		minPriceGauge.Update(minPrice.Int64())
+		recommendedTipGauge.Update(recommendedGasTip.Int64())
 		if tx.GasTipCapIntCmp(recommendedGasTip) < 0 {
 			underpricedRecommendedTipTxCounter.Mark(1)
 			return ErrUnderpriced