diff options
Diffstat (limited to 'src/validation.cpp')
| -rw-r--r-- | src/validation.cpp | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/src/validation.cpp b/src/validation.cpp index 9921063a52..a30f1fd0ce 100644 --- a/src/validation.cpp +++ b/src/validation.cpp @@ -806,13 +806,11 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool // be increased is also an easy-to-reason about way to prevent // DoS attacks via replacements. // - // The mining code doesn't (currently) take children into - // account (CPFP) so we only consider the feerates of - // transactions being directly replaced, not their indirect - // descendants. While that does mean high feerate children are - // ignored when deciding whether or not to replace, we do - // require the replacement to pay more overall fees too, - // mitigating most cases. + // We only consider the feerates of transactions being directly + // replaced, not their indirect descendants. While that does + // mean high feerate children are ignored when deciding whether + // or not to replace, we do require the replacement to pay more + // overall fees too, mitigating most cases. CFeeRate oldFeeRate(mi->GetModifiedFee(), mi->GetTxSize()); if (newFeeRate <= oldFeeRate) { @@ -3729,6 +3727,15 @@ static void FindFilesToPrune(std::set<int>& setFilesToPrune, uint64_t nPruneAfte int count=0; if (nCurrentUsage + nBuffer >= nPruneTarget) { + // On a prune event, the chainstate DB is flushed. + // To avoid excessive prune events negating the benefit of high dbcache + // values, we should not prune too rapidly. + // So when pruning in IBD, increase the buffer a bit to avoid a re-prune too soon. + if (IsInitialBlockDownload()) { + // Since this is only relevant during IBD, we use a fixed 10% + nBuffer += nPruneTarget / 10; + } + for (int fileNumber = 0; fileNumber < nLastBlockFile; fileNumber++) { nBytesToPrune = vinfoBlockFile[fileNumber].nSize + vinfoBlockFile[fileNumber].nUndoSize; |