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author | Luke Dashjr <luke-jr+git@utopios.org> | 2021-01-02 01:46:00 +0000 |
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committer | Luke Dashjr <luke-jr+git@utopios.org> | 2023-12-27 02:57:30 +0000 |
commit | d298ff8b62b2624ed390c8a2f905c888ffc956ff (patch) | |
tree | c916a37f8b583afb17218232a2a65e96eef308ad /src/node | |
parent | 96ec3b67a7a7f968d002e13d6fc227f69b7f07d7 (diff) | |
download | bitcoin-d298ff8b62b2624ed390c8a2f905c888ffc956ff.tar.xz |
During IBD, prune as much as possible until we get close to where we will eventually keep blocks
Diffstat (limited to 'src/node')
-rw-r--r-- | src/node/blockstorage.cpp | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/node/blockstorage.cpp b/src/node/blockstorage.cpp index 53f616de23..d5cbd9311a 100644 --- a/src/node/blockstorage.cpp +++ b/src/node/blockstorage.cpp @@ -298,6 +298,7 @@ void BlockManager::FindFilesToPrune( // Distribute our -prune budget over all chainstates. const auto target = std::max( MIN_DISK_SPACE_FOR_BLOCK_FILES, GetPruneTarget() / chainman.GetAll().size()); + const uint64_t target_sync_height = chainman.m_best_header->nHeight; if (chain.m_chain.Height() < 0 || target == 0) { return; @@ -320,10 +321,13 @@ void BlockManager::FindFilesToPrune( // 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 (chainman.IsInitialBlockDownload()) { - // Since this is only relevant during IBD, we use a fixed 10% - nBuffer += target / 10; + // So when pruning in IBD, increase the buffer to avoid a re-prune too soon. + const auto chain_tip_height = chain.m_chain.Height(); + if (chainman.IsInitialBlockDownload() && target_sync_height > (uint64_t)chain_tip_height) { + // Since this is only relevant during IBD, we assume blocks are at least 1 MB on average + static constexpr uint64_t average_block_size = 1000000; /* 1 MB */ + const uint64_t remaining_blocks = target_sync_height - chain_tip_height; + nBuffer += average_block_size * remaining_blocks; } for (int fileNumber = 0; fileNumber < this->MaxBlockfileNum(); fileNumber++) { |