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Remove priority estimation

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This commit is contained in:
Alex Morcos
2016-03-21 13:04:40 -04:00
committed by Wladimir J. van der Laan
parent ed64bcec2d
commit b2322e0fc6
5 changed files with 101 additions and 251 deletions
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60
src/test/policyestimator_tests.cpp
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@@ -19,26 +19,18 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
CTxMemPool mpool(CFeeRate(1000));
TestMemPoolEntryHelper entry;
CAmount basefee(2000);
double basepri = 1e6;
CAmount deltaFee(100);
double deltaPri=5e5;
std::vector<CAmount> feeV[2];
std::vector<double> priV[2];
std::vector<CAmount> feeV;
// Populate vectors of increasing fees or priorities
// Populate vectors of increasing fees
for (int j = 0; j < 10; j++) {
//V[0] is for fee transactions
feeV[0].push_back(basefee * (j+1));
priV[0].push_back(0);
//V[1] is for priority transactions
feeV[1].push_back(CAmount(0));
priV[1].push_back(basepri * pow(10, j+1));
feeV.push_back(basefee * (j+1));
}
// Store the hashes of transactions that have been
// added to the mempool by their associate fee/pri
// added to the mempool by their associate fee
// txHashes[j] is populated with transactions either of
// fee = basefee * (j+1) OR pri = 10^6 * 10^(j+1)
// fee = basefee * (j+1)
std::vector<uint256> txHashes[10];
// Create a transaction template
@@ -60,19 +52,19 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
// At a decay .998 and 4 fee transactions per block
// This makes the tx count about 1.33 per bucket, above the 1 threshold
while (blocknum < 200) {
for (int j = 0; j < 10; j++) { // For each fee/pri multiple
for (int k = 0; k < 5; k++) { // add 4 fee txs for every priority tx
for (int j = 0; j < 10; j++) { // For each fee
for (int k = 0; k < 4; k++) { // add 4 fee txs
tx.vin[0].prevout.n = 10000*blocknum+100*j+k; // make transaction unique
uint256 hash = tx.GetHash();
mpool.addUnchecked(hash, entry.Fee(feeV[k/4][j]).Time(GetTime()).Priority(priV[k/4][j]).Height(blocknum).FromTx(tx, &mpool));
mpool.addUnchecked(hash, entry.Fee(feeV[j]).Time(GetTime()).Priority(0).Height(blocknum).FromTx(tx, &mpool));
txHashes[j].push_back(hash);
}
}
//Create blocks where higher fee/pri txs are included more often
//Create blocks where higher fee txs are included more often
for (int h = 0; h <= blocknum%10; h++) {
// 10/10 blocks add highest fee/pri transactions
// 10/10 blocks add highest fee transactions
// 9/10 blocks add 2nd highest and so on until ...
// 1/10 blocks add lowest fee/pri transactions
// 1/10 blocks add lowest fee transactions
while (txHashes[9-h].size()) {
std::shared_ptr<const CTransaction> ptx = mpool.get(txHashes[9-h].back());
if (ptx)
@@ -100,7 +92,6 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
}
std::vector<CAmount> origFeeEst;
std::vector<double> origPriEst;
// Highest feerate is 10*baseRate and gets in all blocks,
// second highest feerate is 9*baseRate and gets in 9/10 blocks = 90%,
// third highest feerate is 8*base rate, and gets in 8/10 blocks = 80%,
@@ -109,16 +100,12 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
// so estimateFee(2) should return 9*baseRate etc...
for (int i = 1; i < 10;i++) {
origFeeEst.push_back(mpool.estimateFee(i).GetFeePerK());
origPriEst.push_back(mpool.estimatePriority(i));
if (i > 1) { // Fee estimates should be monotonically decreasing
BOOST_CHECK(origFeeEst[i-1] <= origFeeEst[i-2]);
BOOST_CHECK(origPriEst[i-1] <= origPriEst[i-2]);
}
int mult = 11-i;
BOOST_CHECK(origFeeEst[i-1] < mult*baseRate.GetFeePerK() + deltaFee);
BOOST_CHECK(origFeeEst[i-1] > mult*baseRate.GetFeePerK() - deltaFee);
BOOST_CHECK(origPriEst[i-1] < pow(10,mult) * basepri + deltaPri);
BOOST_CHECK(origPriEst[i-1] > pow(10,mult) * basepri - deltaPri);
}
// Mine 50 more blocks with no transactions happening, estimates shouldn't change
@@ -129,19 +116,17 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
for (int i = 1; i < 10;i++) {
BOOST_CHECK(mpool.estimateFee(i).GetFeePerK() < origFeeEst[i-1] + deltaFee);
BOOST_CHECK(mpool.estimateFee(i).GetFeePerK() > origFeeEst[i-1] - deltaFee);
BOOST_CHECK(mpool.estimatePriority(i) < origPriEst[i-1] + deltaPri);
BOOST_CHECK(mpool.estimatePriority(i) > origPriEst[i-1] - deltaPri);
}
// Mine 15 more blocks with lots of transactions happening and not getting mined
// Estimates should go up
while (blocknum < 265) {
for (int j = 0; j < 10; j++) { // For each fee/pri multiple
for (int k = 0; k < 5; k++) { // add 4 fee txs for every priority tx
for (int j = 0; j < 10; j++) { // For each fee multiple
for (int k = 0; k < 4; k++) { // add 4 fee txs
tx.vin[0].prevout.n = 10000*blocknum+100*j+k;
uint256 hash = tx.GetHash();
mpool.addUnchecked(hash, entry.Fee(feeV[k/4][j]).Time(GetTime()).Priority(priV[k/4][j]).Height(blocknum).FromTx(tx, &mpool));
mpool.addUnchecked(hash, entry.Fee(feeV[j]).Time(GetTime()).Priority(0).Height(blocknum).FromTx(tx, &mpool));
txHashes[j].push_back(hash);
}
}
@@ -152,8 +137,6 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
for (int i = 1; i < 10;i++) {
BOOST_CHECK(mpool.estimateFee(i) == CFeeRate(0) || mpool.estimateFee(i).GetFeePerK() > origFeeEst[i-1] - deltaFee);
BOOST_CHECK(mpool.estimateSmartFee(i, &answerFound).GetFeePerK() > origFeeEst[answerFound-1] - deltaFee);
BOOST_CHECK(mpool.estimatePriority(i) == -1 || mpool.estimatePriority(i) > origPriEst[i-1] - deltaPri);
BOOST_CHECK(mpool.estimateSmartPriority(i, &answerFound) > origPriEst[answerFound-1] - deltaPri);
}
// Mine all those transactions
@@ -170,20 +153,20 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
block.clear();
for (int i = 1; i < 10;i++) {
BOOST_CHECK(mpool.estimateFee(i).GetFeePerK() > origFeeEst[i-1] - deltaFee);
BOOST_CHECK(mpool.estimatePriority(i) > origPriEst[i-1] - deltaPri);
}
// Mine 200 more blocks where everything is mined every block
// Estimates should be below original estimates
while (blocknum < 465) {
for (int j = 0; j < 10; j++) { // For each fee/pri multiple
for (int k = 0; k < 5; k++) { // add 4 fee txs for every priority tx
for (int j = 0; j < 10; j++) { // For each fee multiple
for (int k = 0; k < 4; k++) { // add 4 fee txs
tx.vin[0].prevout.n = 10000*blocknum+100*j+k;
uint256 hash = tx.GetHash();
mpool.addUnchecked(hash, entry.Fee(feeV[k/4][j]).Time(GetTime()).Priority(priV[k/4][j]).Height(blocknum).FromTx(tx, &mpool));
mpool.addUnchecked(hash, entry.Fee(feeV[j]).Time(GetTime()).Priority(0).Height(blocknum).FromTx(tx, &mpool));
std::shared_ptr<const CTransaction> ptx = mpool.get(hash);
if (ptx)
block.push_back(*ptx);
}
}
mpool.removeForBlock(block, ++blocknum);
@@ -191,15 +174,14 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
}
for (int i = 1; i < 10; i++) {
BOOST_CHECK(mpool.estimateFee(i).GetFeePerK() < origFeeEst[i-1] - deltaFee);
BOOST_CHECK(mpool.estimatePriority(i) < origPriEst[i-1] - deltaPri);
}
// Test that if the mempool is limited, estimateSmartFee won't return a value below the mempool min fee
// and that estimateSmartPriority returns essentially an infinite value
mpool.addUnchecked(tx.GetHash(), entry.Fee(feeV[0][5]).Time(GetTime()).Priority(priV[1][5]).Height(blocknum).FromTx(tx, &mpool));
// evict that transaction which should set a mempool min fee of minRelayTxFee + feeV[0][5]
mpool.addUnchecked(tx.GetHash(), entry.Fee(feeV[5]).Time(GetTime()).Priority(0).Height(blocknum).FromTx(tx, &mpool));
// evict that transaction which should set a mempool min fee of minRelayTxFee + feeV[5]
mpool.TrimToSize(1);
BOOST_CHECK(mpool.GetMinFee(1).GetFeePerK() > feeV[0][5]);
BOOST_CHECK(mpool.GetMinFee(1).GetFeePerK() > feeV[5]);
for (int i = 1; i < 10; i++) {
BOOST_CHECK(mpool.estimateSmartFee(i).GetFeePerK() >= mpool.estimateFee(i).GetFeePerK());
BOOST_CHECK(mpool.estimateSmartFee(i).GetFeePerK() >= mpool.GetMinFee(1).GetFeePerK());