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-rw-r--r--src/txdb.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/txdb.h b/src/txdb.h
index 7f5cf2b583..d9214ba618 100644
--- a/src/txdb.h
+++ b/src/txdb.h
@@ -21,8 +21,14 @@ class CBlockIndex;
class CCoinsViewDBCursor;
class uint256;
+//! Compensate for extra memory peak (x1.5-x1.9) at flush time.
+static constexpr int DB_PEAK_USAGE_FACTOR = 2;
+//! No need to periodic flush if at least this much space still available.
+static constexpr int MAX_BLOCK_COINSDB_USAGE = 200 * DB_PEAK_USAGE_FACTOR;
+//! Always periodic flush if less than this much space still available.
+static constexpr int MIN_BLOCK_COINSDB_USAGE = 50 * DB_PEAK_USAGE_FACTOR;
//! -dbcache default (MiB)
-static const int64_t nDefaultDbCache = 300;
+static const int64_t nDefaultDbCache = 450;
//! max. -dbcache (MiB)
static const int64_t nMaxDbCache = sizeof(void*) > 4 ? 16384 : 1024;
//! min. -dbcache (MiB)