From 77f1f59d12b8ea097e8ccba83bd329011817bdf8 Mon Sep 17 00:00:00 2001
From: Matt Corallo <git@bluematt.me>
Date: Fri, 6 Nov 2015 15:12:30 -0800
Subject: Benchmark sanity checks and fork checks in ConnectBlock

---
 src/main.cpp | 28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

(limited to 'src/main.cpp')

diff --git a/src/main.cpp b/src/main.cpp
index 9016fe42a0..a93a2d8505 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1711,6 +1711,8 @@ void PartitionCheck(bool (*initialDownloadCheck)(), CCriticalSection& cs, const
     }
 }
 
+static int64_t nTimeCheck = 0;
+static int64_t nTimeForks = 0;
 static int64_t nTimeVerify = 0;
 static int64_t nTimeConnect = 0;
 static int64_t nTimeIndex = 0;
@@ -1721,6 +1723,9 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
 {
     const CChainParams& chainparams = Params();
     AssertLockHeld(cs_main);
+
+    int64_t nTimeStart = GetTimeMicros();
+
     // Check it again in case a previous version let a bad block in
     if (!CheckBlock(block, state, !fJustCheck, !fJustCheck))
         return false;
@@ -1746,6 +1751,9 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
         }
     }
 
+    int64_t nTime1 = GetTimeMicros(); nTimeCheck += nTime1 - nTimeStart;
+    LogPrint("bench", "    - Sanity checks: %.2fms [%.2fs]\n", 0.001 * (nTime1 - nTimeStart), nTimeCheck * 0.000001);
+
     // Do not allow blocks that contain transactions which 'overwrite' older transactions,
     // unless those are already completely spent.
     // If such overwrites are allowed, coinbases and transactions depending upon those
@@ -1788,11 +1796,13 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
         flags |= SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY;
     }
 
+    int64_t nTime2 = GetTimeMicros(); nTimeForks += nTime2 - nTime1;
+    LogPrint("bench", "    - Fork checks: %.2fms [%.2fs]\n", 0.001 * (nTime2 - nTime1), nTimeForks * 0.000001);
+
     CBlockUndo blockundo;
 
     CCheckQueueControl<CScriptCheck> control(fScriptChecks && nScriptCheckThreads ? &scriptcheckqueue : NULL);
 
-    int64_t nTimeStart = GetTimeMicros();
     CAmount nFees = 0;
     int nInputs = 0;
     unsigned int nSigOps = 0;
@@ -1845,8 +1855,8 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
         vPos.push_back(std::make_pair(tx.GetHash(), pos));
         pos.nTxOffset += ::GetSerializeSize(tx, SER_DISK, CLIENT_VERSION);
     }
-    int64_t nTime1 = GetTimeMicros(); nTimeConnect += nTime1 - nTimeStart;
-    LogPrint("bench", "      - Connect %u transactions: %.2fms (%.3fms/tx, %.3fms/txin) [%.2fs]\n", (unsigned)block.vtx.size(), 0.001 * (nTime1 - nTimeStart), 0.001 * (nTime1 - nTimeStart) / block.vtx.size(), nInputs <= 1 ? 0 : 0.001 * (nTime1 - nTimeStart) / (nInputs-1), nTimeConnect * 0.000001);
+    int64_t nTime3 = GetTimeMicros(); nTimeConnect += nTime3 - nTime2;
+    LogPrint("bench", "      - Connect %u transactions: %.2fms (%.3fms/tx, %.3fms/txin) [%.2fs]\n", (unsigned)block.vtx.size(), 0.001 * (nTime3 - nTime2), 0.001 * (nTime3 - nTime2) / block.vtx.size(), nInputs <= 1 ? 0 : 0.001 * (nTime3 - nTime2) / (nInputs-1), nTimeConnect * 0.000001);
 
     CAmount blockReward = nFees + GetBlockSubsidy(pindex->nHeight, chainparams.GetConsensus());
     if (block.vtx[0].GetValueOut() > blockReward)
@@ -1857,8 +1867,8 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
 
     if (!control.Wait())
         return state.DoS(100, false);
-    int64_t nTime2 = GetTimeMicros(); nTimeVerify += nTime2 - nTimeStart;
-    LogPrint("bench", "    - Verify %u txins: %.2fms (%.3fms/txin) [%.2fs]\n", nInputs - 1, 0.001 * (nTime2 - nTimeStart), nInputs <= 1 ? 0 : 0.001 * (nTime2 - nTimeStart) / (nInputs-1), nTimeVerify * 0.000001);
+    int64_t nTime4 = GetTimeMicros(); nTimeVerify += nTime4 - nTime2;
+    LogPrint("bench", "    - Verify %u txins: %.2fms (%.3fms/txin) [%.2fs]\n", nInputs - 1, 0.001 * (nTime4 - nTime2), nInputs <= 1 ? 0 : 0.001 * (nTime4 - nTime2) / (nInputs-1), nTimeVerify * 0.000001);
 
     if (fJustCheck)
         return true;
@@ -1889,16 +1899,16 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
     // add this block to the view's block chain
     view.SetBestBlock(pindex->GetBlockHash());
 
-    int64_t nTime3 = GetTimeMicros(); nTimeIndex += nTime3 - nTime2;
-    LogPrint("bench", "    - Index writing: %.2fms [%.2fs]\n", 0.001 * (nTime3 - nTime2), nTimeIndex * 0.000001);
+    int64_t nTime5 = GetTimeMicros(); nTimeIndex += nTime5 - nTime4;
+    LogPrint("bench", "    - Index writing: %.2fms [%.2fs]\n", 0.001 * (nTime5 - nTime4), nTimeIndex * 0.000001);
 
     // Watch for changes to the previous coinbase transaction.
     static uint256 hashPrevBestCoinBase;
     GetMainSignals().UpdatedTransaction(hashPrevBestCoinBase);
     hashPrevBestCoinBase = block.vtx[0].GetHash();
 
-    int64_t nTime4 = GetTimeMicros(); nTimeCallbacks += nTime4 - nTime3;
-    LogPrint("bench", "    - Callbacks: %.2fms [%.2fs]\n", 0.001 * (nTime4 - nTime3), nTimeCallbacks * 0.000001);
+    int64_t nTime6 = GetTimeMicros(); nTimeCallbacks += nTime6 - nTime5;
+    LogPrint("bench", "    - Callbacks: %.2fms [%.2fs]\n", 0.001 * (nTime6 - nTime5), nTimeCallbacks * 0.000001);
 
     return true;
 }
-- 
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