45M gas for mainnet (#8824)

* 45M gas for mainnet

Signed-off-by: Sally MacFarlane <[email protected]>

* changelog entry

Signed-off-by: Sally MacFarlane <[email protected]>

---------

Signed-off-by: Sally MacFarlane <[email protected]>

Author: macfarla

CHANGELOG.md

@@ -21,6 +21,8 @@
 ### Additions and Improvements
 - Introduce the `TransactionValidatorService` to allow plugins to add custom validation rules [#8793](https://github.com/hyperledger/besu/pull/8793)
 - Enable parallel tx processing by default if Bonsai is used [#8668](https://github.com/hyperledger/besu/pull/8668)
+- Increase mainnet gas limit to 45M [#8824](https://github.com/hyperledger/besu/pull/8824)
+
 
 #### Fusaka Devnet
 - EIP-7825 - Transaction gas limit cap [#8700](https://github.com/hyperledger/besu/pull/8700)

consensus/merge/src/main/java/org/hyperledger/besu/consensus/merge/blockcreation/MergeCoordinator.java

@@ -80,7 +80,8 @@ public class MergeCoordinator implements MergeMiningCoordinator, BadChainListene
    */
   private static final double TRY_FILL_BLOCK = 1.0;
 
-  private static final long DEFAULT_TARGET_GAS_LIMIT = 36_000_000L;
+  // if you change these gas limits, also update the tests in MergeCoordinatorTest
+  private static final long DEFAULT_TARGET_GAS_LIMIT = 45_000_000L;
   // testnets might have higher gas limits than mainnet and are incrementally updated
   private static final long DEFAULT_TARGET_GAS_LIMIT_TESTNET = 60_000_000L;
   // next target gas limit TBD

consensus/merge/src/test/java/org/hyperledger/besu/consensus/merge/blockcreation/MergeCoordinatorTest.java

@@ -1010,7 +1010,7 @@ public void shouldSetCorrectTargetGasLimit(final ArgumentsAccessor argumentsAcce
 
   public static Stream<Arguments> getGasLimits() {
     return Stream.of(
-        Arguments.of("mainnet", 1L, 36_000_000L),
+        Arguments.of("mainnet", 1L, 45_000_000L),
         Arguments.of("holesky", 17_000L, 60_000_000L),
         Arguments.of("sepolia", 11_155_111L, 60_000_000L),
         Arguments.of("hoodi", 560_048L, 60_000_000L),
@@ -1043,7 +1043,7 @@ private BlockHeader terminalPowBlock() {
                 genesisState.getBlock().getHeader().getNumber() + 1,
                 genesisState.getBlock().getHeader().getBaseFee().orElse(Wei.of(0x3b9aca00)),
                 0,
-                15000000l))
+                15000000L))
         .timestamp(1)
         .gasLimit(genesisState.getBlock().getHeader().getGasLimit())
         .stateRoot(genesisState.getBlock().getHeader().getStateRoot())
@@ -1066,7 +1066,7 @@ private BlockHeader nextBlockHeader(
                 genesisState.getBlock().getHeader().getNumber() + 1,
                 parentHeader.getBaseFee().orElse(Wei.of(0x3b9aca00)),
                 0,
-                15000000l))
+                15000000L))
         .buildHeader();
   }