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Add in-memory cache for CRecoveredSigsDb::HasRecoveredSigForHash

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This commit is contained in:
Alexander Block 2019-02-26 07:22:35 +01:00
parent 677c0040cd
commit e83e32b956
2 changed files with 20 additions and 1 deletions
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20
src/llmq/quorums_signing.cpp
View File

@ -81,8 +81,23 @@ bool CRecoveredSigsDb::HasRecoveredSigForSession(const uint256& signHash)
bool CRecoveredSigsDb::HasRecoveredSigForHash(const uint256& hash)
{
int64_t t = GetTimeMillis();
{
LOCK(cs);
auto it = hasSigForHashCache.find(hash);
if (it != hasSigForHashCache.end()) {
it->second.second = t;
return it->second.first;
}
}
auto k = std::make_tuple('h', hash);
return db.Exists(k);
bool ret = db.Exists(k);
LOCK(cs);
hasSigForHashCache.emplace(hash, std::make_pair(ret, t));
return ret;
}
bool CRecoveredSigsDb::ReadRecoveredSig(Consensus::LLMQType llmqType, const uint256& id, CRecoveredSig& ret)
@ -154,6 +169,7 @@ void CRecoveredSigsDb::WriteRecoveredSig(const llmq::CRecoveredSig& recSig)
LOCK(cs);
hasSigForIdCache[std::make_pair((Consensus::LLMQType)recSig.llmqType, recSig.id)] = std::make_pair(true, t);
hasSigForSessionCache[signHash] = std::make_pair(true, t);
hasSigForHashCache[recSig.GetHash()] = std::make_pair(true, t);
}
}
@ -239,10 +255,12 @@ void CRecoveredSigsDb::CleanupOldRecoveredSigs(int64_t maxAge)
hasSigForIdCache.erase(std::make_pair((Consensus::LLMQType)recSig.llmqType, recSig.id));
hasSigForSessionCache.erase(signHash);
hasSigForHashCache.erase(recSig.GetHash());
}
TruncateCacheMap(hasSigForIdCache, MAX_CACHE_SIZE, MAX_CACHE_TRUNCATE_THRESHOLD);
TruncateCacheMap(hasSigForSessionCache, MAX_CACHE_SIZE, MAX_CACHE_TRUNCATE_THRESHOLD);
TruncateCacheMap(hasSigForHashCache, MAX_CACHE_SIZE, MAX_CACHE_TRUNCATE_THRESHOLD);
}
for (auto& e : toDelete2) {

1
src/llmq/quorums_signing.h
View File

@ -88,6 +88,7 @@ private:
CCriticalSection cs;
std::unordered_map<std::pair<Consensus::LLMQType, uint256>, std::pair<bool, int64_t>> hasSigForIdCache;
std::unordered_map<uint256, std::pair<bool, int64_t>> hasSigForSessionCache;
std::unordered_map<uint256, std::pair<bool, int64_t>> hasSigForHashCache;
public:
CRecoveredSigsDb(bool fMemory);