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Merge #9472: Disentangle progress estimation from checkpoints and update it

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df36371 Update estimated transaction count data (Pieter Wuille)
e356d9a Shorten variable names and switch to tx/s (Pieter Wuille)
6dd8116 Remove SIGCHECK_VERIFICATION_FACTOR (Pieter Wuille)
3641141 Move tx estimation data out of CCheckPointData (Pieter Wuille)
a4bac66 [MOVEONLY] Move progress estimation out of checkpoints (Pieter Wuille)
This commit is contained in:
Wladimir J. van der Laan 2017-01-12 12:12:56 +01:00 committed by Alexander Block
parent cee8cf1be6
commit 658479355e
9 changed files with 57 additions and 62 deletions
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28
src/chainparams.cpp
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@ -244,11 +244,14 @@ public:
( 407452, uint256S("0x000000000003c6a87e73623b9d70af7cd908ae22fee466063e4ffc20be1d2dbc"))
( 523412, uint256S("0x000000000000e54f036576a10597e0e42cc22a5159ce572f999c33975e121d4d"))
( 523930, uint256S("0x0000000000000bccdb11c2b1cfb0ecab452abf267d89b7f46eaf2d54ce6e652c"))
( 750000, uint256S("0x00000000000000b4181bbbdddbae464ce11fede5d0292fb63fdede1e7c8ab21c")),
1507424630, // * UNIX timestamp of last checkpoint block
3701128, // * total number of transactions between genesis and last checkpoint
( 750000, uint256S("0x00000000000000b4181bbbdddbae464ce11fede5d0292fb63fdede1e7c8ab21c"))
};
chainTxData = ChainTxData{
1507424630, // * UNIX timestamp of last known number of transactions
3701128, // * total number of transactions between genesis and that timestamp
// (the tx=... number in the SetBestChain debug.log lines)
5000 // * estimated number of transactions per day after checkpoint
0.1 // * estimated number of transactions second after that timestamp
};
}
};
@ -360,12 +363,15 @@ public:
boost::assign::map_list_of
( 261, uint256S("0x00000c26026d0815a7e2ce4fa270775f61403c040647ff2c3091f99e894a4618"))
( 1999, uint256S("0x00000052e538d27fa53693efe6fb6892a0c1d26c0235f599171c48a3cce553b1"))
( 2999, uint256S("0x0000024bc3f4f4cb30d29827c13d921ad77d2c6072e586c7f60d83c2722cdcc5")),
( 2999, uint256S("0x0000024bc3f4f4cb30d29827c13d921ad77d2c6072e586c7f60d83c2722cdcc5"))
};
1462856598, // * UNIX timestamp of last checkpoint block
3094, // * total number of transactions between genesis and last checkpoint
chainTxData = ChainTxData{
// Data as of block 0000024bc3f4f4cb30d29827c13d921ad77d2c6072e586c7f60d83c2722cdcc5 (height 2999)
1462856598,
3094, // * total number of transactions between genesis and last checkpoint
// (the tx=... number in the SetBestChain debug.log lines)
500 // * estimated number of transactions per day after checkpoint
0.01 // * estimated number of transactions per day after checkpoint
};
}
@ -565,11 +571,15 @@ public:
checkpointData = (CCheckpointData){
boost::assign::map_list_of
( 0, uint256S("0x000008ca1832a4baf228eb1553c03d3a2c8e02399550dd6ea8d65cec3ef23d2e")),
( 0, uint256S("0x000008ca1832a4baf228eb1553c03d3a2c8e02399550dd6ea8d65cec3ef23d2e"))
};
chainTxData = ChainTxData{
0,
0,
0
};
// Regtest Dash addresses start with 'y'
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,140);
// Regtest Dash script addresses start with '8' or '9'

11
src/chainparams.h
View File

@ -28,9 +28,12 @@ typedef std::map<int, uint256> MapCheckpoints;
struct CCheckpointData {
MapCheckpoints mapCheckpoints;
int64_t nTimeLastCheckpoint;
int64_t nTransactionsLastCheckpoint;
double fTransactionsPerDay;
};
struct ChainTxData {
int64_t nTime;
int64_t nTxCount;
double dTxRate;
};
/**
@ -79,6 +82,7 @@ public:
int ExtCoinType() const { return nExtCoinType; }
const std::vector<SeedSpec6>& FixedSeeds() const { return vFixedSeeds; }
const CCheckpointData& Checkpoints() const { return checkpointData; }
const ChainTxData& TxData() const { return chainTxData; }
int PoolMaxTransactions() const { return nPoolMaxTransactions; }
int FulfilledRequestExpireTime() const { return nFulfilledRequestExpireTime; }
std::string SporkPubKey() const { return strSporkPubKey; }
@ -105,6 +109,7 @@ protected:
bool fMineBlocksOnDemand;
bool fAllowMultipleAddressesFromGroup;
CCheckpointData checkpointData;
ChainTxData chainTxData;
int nPoolMaxTransactions;
int nFulfilledRequestExpireTime;
std::string strSporkPubKey;

40
src/checkpoints.cpp
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@ -16,46 +16,6 @@
namespace Checkpoints {
/**
* 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
double GuessVerificationProgress(const CCheckpointData& data, CBlockIndex *pindex, bool fSigchecks) {
if (pindex==NULL)
return 0.0;
int64_t nNow = time(NULL);
double fSigcheckVerificationFactor = fSigchecks ? SIGCHECK_VERIFICATION_FACTOR : 1.0;
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) {
double nCheapBefore = pindex->nChainTx;
double nCheapAfter = data.nTransactionsLastCheckpoint - pindex->nChainTx;
double nExpensiveAfter = (nNow - data.nTimeLastCheckpoint)/86400.0*data.fTransactionsPerDay;
fWorkBefore = nCheapBefore;
fWorkAfter = nCheapAfter + nExpensiveAfter*fSigcheckVerificationFactor;
} else {
double nCheapBefore = data.nTransactionsLastCheckpoint;
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);
}
CBlockIndex* GetLastCheckpoint(const CCheckpointData& data)
{
const MapCheckpoints& checkpoints = data.mapCheckpoints;

2
src/checkpoints.h
View File

@ -22,8 +22,6 @@ namespace Checkpoints
//! Returns last CBlockIndex* in mapBlockIndex that is a checkpoint
CBlockIndex* GetLastCheckpoint(const CCheckpointData& data);
double GuessVerificationProgress(const CCheckpointData& data, CBlockIndex* pindex, bool fSigchecks = true);
} //namespace Checkpoints
#endif // BITCOIN_CHECKPOINTS_H

2
src/qt/clientmodel.cpp
View File

@ -166,7 +166,7 @@ double ClientModel::getVerificationProgress(const CBlockIndex *tipIn) const
LOCK(cs_main);
tip = chainActive.Tip();
}
return Checkpoints::GuessVerificationProgress(Params().Checkpoints(), tip);
return GuessVerificationProgress(Params().TxData(), tip);
}
void ClientModel::updateTimer()

2
src/rpc/blockchain.cpp
View File

@ -1254,7 +1254,7 @@ UniValue getblockchaininfo(const JSONRPCRequest& request)
obj.push_back(Pair("bestblockhash", chainActive.Tip()->GetBlockHash().GetHex()));
obj.push_back(Pair("difficulty", (double)GetDifficulty()));
obj.push_back(Pair("mediantime", (int64_t)chainActive.Tip()->GetMedianTimePast()));
obj.push_back(Pair("verificationprogress", Checkpoints::GuessVerificationProgress(Params().Checkpoints(), chainActive.Tip())));
obj.push_back(Pair("verificationprogress", GuessVerificationProgress(Params().TxData(), chainActive.Tip())));
obj.push_back(Pair("chainwork", chainActive.Tip()->nChainWork.GetHex()));
obj.push_back(Pair("pruned", fPruneMode));

22
src/validation.cpp
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@ -2520,7 +2520,7 @@ void static UpdateTip(CBlockIndex *pindexNew, const CChainParams& chainParams) {
chainActive.Tip()->GetBlockHash().ToString(), chainActive.Height(), chainActive.Tip()->nVersion,
log(chainActive.Tip()->nChainWork.getdouble())/log(2.0), (unsigned long)chainActive.Tip()->nChainTx,
DateTimeStrFormat("%Y-%m-%d %H:%M:%S", chainActive.Tip()->GetBlockTime()),
Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), chainActive.Tip()), pcoinsTip->DynamicMemoryUsage() * (1.0 / (1<<20)), pcoinsTip->GetCacheSize());
GuessVerificationProgress(chainParams.TxData(), chainActive.Tip()), pcoinsTip->DynamicMemoryUsage() * (1.0 / (1<<20)), pcoinsTip->GetCacheSize());
if (!warningMessages.empty())
LogPrintf(" warning='%s'", boost::algorithm::join(warningMessages, ", "));
LogPrintf("\n");
@ -3924,7 +3924,7 @@ bool static LoadBlockIndexDB(const CChainParams& chainparams)
LogPrintf("%s: hashBestChain=%s height=%d date=%s progress=%f\n", __func__,
chainActive.Tip()->GetBlockHash().ToString(), chainActive.Height(),
DateTimeStrFormat("%Y-%m-%d %H:%M:%S", chainActive.Tip()->GetBlockTime()),
Checkpoints::GuessVerificationProgress(chainparams.Checkpoints(), chainActive.Tip()));
GuessVerificationProgress(chainparams.TxData(), chainActive.Tip()));
return true;
}
@ -4565,6 +4565,24 @@ void DumpMempool(void)
}
}
//! Guess how far we are in the verification process at the given block index
double GuessVerificationProgress(const ChainTxData& data, CBlockIndex *pindex) {
if (pindex == NULL)
return 0.0;
int64_t nNow = time(NULL);
double fTxTotal;
if (pindex->nChainTx <= data.nTxCount) {
fTxTotal = data.nTxCount + (nNow - data.nTime) * data.dTxRate;
} else {
fTxTotal = pindex->nChainTx + (nNow - pindex->GetBlockTime()) * data.dTxRate;
}
return pindex->nChainTx / fTxTotal;
}
class CMainCleanup
{
public:

4
src/validation.h
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@ -45,6 +45,7 @@ class CScriptCheck;
class CTxMemPool;
class CValidationInterface;
class CValidationState;
struct ChainTxData;
struct LockPoints;
@ -293,6 +294,9 @@ double ConvertBitsToDouble(unsigned int nBits);
CAmount GetBlockSubsidy(int nBits, int nHeight, const Consensus::Params& consensusParams, bool fSuperblockPartOnly = false);
CAmount GetMasternodePayment(int nHeight, CAmount blockValue);
/** Guess verification progress (as a fraction between 0.0=genesis and 1.0=current tip). */
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.
* The user sets the target (in MB) on the command line or in config file. This will be run on startup and whenever new

8
src/wallet/wallet.cpp
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@ -1848,12 +1848,12 @@ int CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate)
pindex = chainActive.Next(pindex);
ShowProgress(_("Rescanning..."), 0); // show rescan progress in GUI as dialog or on splashscreen, if -rescan on startup
double dProgressStart = Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), pindex, false);
double dProgressTip = Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), chainActive.Tip(), false);
double dProgressStart = GuessVerificationProgress(chainParams.TxData(), pindex);
double dProgressTip = GuessVerificationProgress(chainParams.TxData(), chainActive.Tip());
while (pindex)
{
if (pindex->nHeight % 100 == 0 && dProgressTip - dProgressStart > 0.0)
ShowProgress(_("Rescanning..."), std::max(1, std::min(99, (int)((Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), 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;
ReadBlockFromDisk(block, pindex, Params().GetConsensus());
@ -1866,7 +1866,7 @@ int CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate)
pindex = chainActive.Next(pindex);
if (GetTime() >= nNow + 60) {
nNow = GetTime();
LogPrintf("Still rescanning. At block %d. Progress=%f\n", pindex->nHeight, Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), pindex));
LogPrintf("Still rescanning. At block %d. Progress=%f\n", pindex->nHeight, GuessVerificationProgress(chainParams.TxData(), pindex));
}
}
ShowProgress(_("Rescanning..."), 100); // hide progress dialog in GUI