update max block size, fix performance of...

update max block size, fix performance of chain_controller::head_block_producer, and increase batch sizes for benchmark

libraries/chain/chain_controller.cpp

@@ -1025,6 +1025,9 @@ block_id_type chain_controller::head_block_id()const {
 }
 
 types::AccountName chain_controller::head_block_producer() const {
+   auto b = _fork_db.fetch_block(head_block_id());
+   if( b ) return b->data.producer;
+
    if (auto head_block = fetch_block_by_id(head_block_id()))
       return head_block->producer;
    return {};

libraries/chain/include/eos/chain/config.hpp

@@ -53,7 +53,7 @@ const static int BlockIntervalSeconds = 3;
 const static int Percent100 = 10000;
 const static int Percent1 = 100;
 
-const static UInt32 DefaultMaxBlockSize = 1024 * 1024;
+const static UInt32 DefaultMaxBlockSize = 5 * 1024 * 1024;
 const static UInt32 DefaultTargetBlockSize = 128 * 1024;
 const static UInt64 DefaultMaxStorageSize = 10 * 1024;
 const static ShareType DefaultElectedPay = Asset(100).amount;

programs/eosc/main.cpp

@@ -333,7 +333,7 @@ int main( int argc, char** argv ) {
       for( uint32_t i = 0; i < number_of_accounts; ++i ) {
          Name sender( "initb" );
          Name recipient( Name("benchmark").value + i);
-         uint32_t amount = 10000;
+         uint32_t amount = 100000;
 
          SignedTransaction trx;
          trx.scope = sort_names({sender,recipient});
@@ -381,7 +381,7 @@ int main( int argc, char** argv ) {
             transaction_set_reference_block(trx, info.head_block_id);
 
             batch.emplace_back(trx);
-            if( batch.size() == 300 ) {
+            if( batch.size() == 600 ) {
                auto result = call( push_txns_func, batch );
                //std::cout << fc::json::to_pretty_string(result) << std::endl;
                batch.resize(0);