diff options
| -rw-r--r-- | src/miner.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/miner.cpp b/src/miner.cpp index 67e7ff155b..570053a53b 100644 --- a/src/miner.cpp +++ b/src/miner.cpp @@ -358,6 +358,13 @@ void BlockAssembler::addPackageTxs() CTxMemPool::indexed_transaction_set::index<ancestor_score>::type::iterator mi = mempool.mapTx.get<ancestor_score>().begin(); CTxMemPool::txiter iter; + + // Limit the number of attempts to add transactions to the block when it is + // close to full; this is just a simple heuristic to finish quickly if the + // mempool has a lot of entries. + const int64_t MAX_CONSECUTIVE_FAILURES = 1000; + int64_t nConsecutiveFailed = 0; + while (mi != mempool.mapTx.get<ancestor_score>().end() || !mapModifiedTx.empty()) { // First try to find a new transaction in mapTx to evaluate. @@ -419,6 +426,14 @@ void BlockAssembler::addPackageTxs() mapModifiedTx.get<ancestor_score>().erase(modit); failedTx.insert(iter); } + + ++nConsecutiveFailed; + + if (nConsecutiveFailed > MAX_CONSECUTIVE_FAILURES && nBlockWeight > + nBlockMaxWeight - 4000) { + // Give up if we're close to full and haven't succeeded in a while + break; + } continue; } @@ -439,6 +454,9 @@ void BlockAssembler::addPackageTxs() continue; } + // This transaction will make it in; reset the failed counter. + nConsecutiveFailed = 0; + // Package can be added. Sort the entries in a valid order. std::vector<CTxMemPool::txiter> sortedEntries; SortForBlock(ancestors, iter, sortedEntries); |