Merge pull request #1255 from ethereum-optimism/gas-oracle/logging

gas-oracle: improve logging

.changeset/kind-hotels-turn.md

+---
+'@eth-optimism/gas-oracle': patch
+---
+
+Add additional logging in the `gas-oracle`

go/gas-oracle/gasprices/l2_gas_pricer.go

@@ -52,6 +52,8 @@ func (p *GasPricer) CalcNextEpochGasPrice(avgGasPerSecondLastEpoch float64) (uin
 	}
 	// The percent difference between our current average gas & our target gas
 	proportionOfTarget := avgGasPerSecondLastEpoch / targetGasPerSecond
+	log.Trace("Calculating next epoch gas price", "proportionOfTarget", proportionOfTarget,
+		"avgGasPerSecondLastEpoch", avgGasPerSecondLastEpoch, "targetGasPerSecond", targetGasPerSecond)
 	// The percent that we should adjust the gas price to reach our target gas
 	proportionToChangeBy := 0.0
 	if proportionOfTarget >= 1 { // If average avgGasPerSecondLastEpoch is GREATER than our target
@@ -59,9 +61,11 @@ func (p *GasPricer) CalcNextEpochGasPrice(avgGasPerSecondLastEpoch float64) (uin
 	} else {
 		proportionToChangeBy = math.Max(proportionOfTarget, 1-p.maxChangePerEpoch)
 	}
-	log.Debug("CalcNextEpochGasPrice", "proportionToChangeBy", proportionToChangeBy, "proportionOfTarget", proportionOfTarget)
 	updated := float64(max(1, p.curPrice)) * proportionToChangeBy
-	return max(p.floorPrice, uint64(math.Ceil(updated))), nil
+	result := max(p.floorPrice, uint64(math.Ceil(updated)))
+	log.Debug("Calculated next epoch gas price", "proportionToChangeBy", proportionToChangeBy,
+		"proportionOfTarget", proportionOfTarget, "result", result)
+	return result, nil
 }
 
 // CompleteEpoch ends the current epoch and updates the current gas price for the next epoch