diff -uNr a/bitcoin/src/main.cpp b/bitcoin/src/main.cpp
--- a/bitcoin/src/main.cpp d49e7aaab38507fd69e6629b8baae80bc87d2071c842c8ede6f2d8e54f87e7d439c79b9a38ad94591e6fd5cf96196f2221426a4c8a2ffb282030fbcf810c18fb
+++ b/bitcoin/src/main.cpp 1160cb4d3aa5dd0b023a03f05d51fa5b325b26216fb075c3203afae7967937e86cf3b2149c2d7cf1686f203904aa416bc192d643f85c4ebb82b000df18a5f6a8
@@ -1231,6 +1231,8 @@
 
 bool CBlock::CheckBlock() const
 {
+    int64 nStart = GetTimeMillis();
+
     // These are checks that are independent of context
     // that can be verified before saving an orphan block.
 
@@ -1266,11 +1268,14 @@
     if (hashMerkleRoot != BuildMerkleTree())
         return DoS(100, error("CheckBlock() : hashMerkleRoot mismatch"));
 
+    printf("CheckBlock() success : %"PRI64d"ms\n", GetTimeMillis() - nStart);
     return true;
 }
 
 bool CBlock::AcceptBlock()
 {
+    int64 nStart = GetTimeMillis();
+
     // Check for duplicate
     uint256 hash = GetHash();
     if (mapBlockIndex.count(hash))
@@ -1317,6 +1322,7 @@
                 if (nBestHeight > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : 140700))
                     pnode->PushInventory(CInv(MSG_BLOCK, hash));
 
+    printf("AcceptBlock() success : %"PRI64d"ms\n", GetTimeMillis() - nStart);
     return true;
 }
 
@@ -2017,6 +2023,8 @@
 
     else if (strCommand == "block")
     {
+        int64 nStart = GetTimeMillis();
+
         CBlock block;
         vRecv >> block;
 
@@ -2029,6 +2037,8 @@
         if (ProcessBlock(pfrom, &block))
             mapAlreadyAskedFor.erase(inv);
         if (block.nDoS) pfrom->Misbehaving(block.nDoS);
+
+        printf("Tested candidate block in %"PRI64d"ms\n", GetTimeMillis() - nStart);
     }