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Remove SIGCHECK_VERIFICATION_FACTOR

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This commit is contained in:
Pieter Wuille 2017-01-04 13:09:20 -08:00
parent 3641141c8f
commit 6dd81169fc
3 changed files with 10 additions and 32 deletions
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34
src/validation.cpp
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@ -4141,44 +4141,22 @@ void DumpMempool(void)
} }
} }
/**
* How many times slower we expect checking transactions after the last
* checkpoint to be (from checking signatures, which is skipped up to the
* last checkpoint). This number is a compromise, as it can't be accurate
* for every system. When reindexing from a fast disk with a slow CPU, it
* can be up to 20, while when downloading from a slow network with a
* fast multicore CPU, it won't be much higher than 1.
*/
static const double SIGCHECK_VERIFICATION_FACTOR = 5.0;
//! Guess how far we are in the verification process at the given block index //! Guess how far we are in the verification process at the given block index
double GuessVerificationProgress(const ChainTxData& data, CBlockIndex *pindex, bool fSigchecks) { double GuessVerificationProgress(const ChainTxData& data, CBlockIndex *pindex) {
if (pindex==NULL) if (pindex == NULL)
return 0.0; return 0.0;
int64_t nNow = time(NULL); int64_t nNow = time(NULL);
double fSigcheckVerificationFactor = fSigchecks ? SIGCHECK_VERIFICATION_FACTOR : 1.0; double fTxTotal;
double fWorkBefore = 0.0; // Amount of work done before pindex
double fWorkAfter = 0.0; // Amount of work left after pindex (estimated)
// Work is defined as: 1.0 per transaction before the last checkpoint, and
// fSigcheckVerificationFactor per transaction after.
if (pindex->nChainTx <= data.nTransactionsLastCheckpoint) { if (pindex->nChainTx <= data.nTransactionsLastCheckpoint) {
double nCheapBefore = pindex->nChainTx; fTxTotal = data.nTransactionsLastCheckpoint + (nNow - data.nTimeLastCheckpoint) / 86400.0 * data.fTransactionsPerDay;
double nCheapAfter = data.nTransactionsLastCheckpoint - pindex->nChainTx;
double nExpensiveAfter = (nNow - data.nTimeLastCheckpoint)/86400.0*data.fTransactionsPerDay;
fWorkBefore = nCheapBefore;
fWorkAfter = nCheapAfter + nExpensiveAfter*fSigcheckVerificationFactor;
} else { } else {
double nCheapBefore = data.nTransactionsLastCheckpoint; fTxTotal = pindex->nChainTx + (nNow - pindex->GetBlockTime()) / 86400.0 * data.fTransactionsPerDay;
double nExpensiveBefore = pindex->nChainTx - data.nTransactionsLastCheckpoint;
double nExpensiveAfter = (nNow - pindex->GetBlockTime())/86400.0*data.fTransactionsPerDay;
fWorkBefore = nCheapBefore + nExpensiveBefore*fSigcheckVerificationFactor;
fWorkAfter = nExpensiveAfter*fSigcheckVerificationFactor;
} }
return fWorkBefore / (fWorkBefore + fWorkAfter); return pindex->nChainTx / fTxTotal;
} }
class CMainCleanup class CMainCleanup

2
src/validation.h
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@ -281,7 +281,7 @@ bool ActivateBestChain(CValidationState& state, const CChainParams& chainparams,
CAmount GetBlockSubsidy(int nHeight, const Consensus::Params& consensusParams); CAmount GetBlockSubsidy(int nHeight, const Consensus::Params& consensusParams);
/** Guess verification progress (as a fraction between 0.0=genesis and 1.0=current tip). */ /** Guess verification progress (as a fraction between 0.0=genesis and 1.0=current tip). */
double GuessVerificationProgress(const ChainTxData& data, CBlockIndex* pindex, bool fSigchecks = true); double GuessVerificationProgress(const ChainTxData& data, CBlockIndex* pindex);
/** /**
* Prune block and undo files (blk???.dat and undo???.dat) so that the disk space used is less than a user-defined target. * Prune block and undo files (blk???.dat and undo???.dat) so that the disk space used is less than a user-defined target.

6
src/wallet/wallet.cpp
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@ -1479,12 +1479,12 @@ int CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate)
pindex = chainActive.Next(pindex); pindex = chainActive.Next(pindex);
ShowProgress(_("Rescanning..."), 0); // show rescan progress in GUI as dialog or on splashscreen, if -rescan on startup ShowProgress(_("Rescanning..."), 0); // show rescan progress in GUI as dialog or on splashscreen, if -rescan on startup
double dProgressStart = GuessVerificationProgress(chainParams.TxData(), pindex, false); double dProgressStart = GuessVerificationProgress(chainParams.TxData(), pindex);
double dProgressTip = GuessVerificationProgress(chainParams.TxData(), chainActive.Tip(), false); double dProgressTip = GuessVerificationProgress(chainParams.TxData(), chainActive.Tip());
while (pindex) while (pindex)
{ {
if (pindex->nHeight % 100 == 0 && dProgressTip - dProgressStart > 0.0) if (pindex->nHeight % 100 == 0 && dProgressTip - dProgressStart > 0.0)
ShowProgress(_("Rescanning..."), std::max(1, std::min(99, (int)((GuessVerificationProgress(chainParams.TxData(), pindex, false) - dProgressStart) / (dProgressTip - dProgressStart) * 100)))); ShowProgress(_("Rescanning..."), std::max(1, std::min(99, (int)((GuessVerificationProgress(chainParams.TxData(), pindex) - dProgressStart) / (dProgressTip - dProgressStart) * 100))));
CBlock block; CBlock block;
ReadBlockFromDisk(block, pindex, Params().GetConsensus()); ReadBlockFromDisk(block, pindex, Params().GetConsensus());