Thanks for your advice. There are indeed too many free pages. We switched to use a small write batch and solved the problem we encountered.
- [About lmdb's write performance] mdb_txn_commit blocking f... Wang Zhiyong
- Re: [About lmdb's write performance] mdb_txn_commit b... Wang Zhiyong
- Re: [About lmdb's write performance] mdb_txn_commit b... Howard Chu
- Re: [About lmdb's write performance] mdb_txn_comm... Wang Zhiyong
- Re: [About lmdb's write performance] mdb_txn_... Steffen Michels
- Re: [About lmdb's write performance] mdb_... Wang Zhiyong