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Merge pull request 'Set "no read ahead" on LMDB to improve performances when "LMDB size" > "RAM size"' (#855) from fix-lmdb-no-read-ahead into main
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Reviewed-on: #855
Reviewed-by: Alex <alex@adnab.me>
This commit is contained in:
Quentin 2024-08-18 12:25:35 +00:00
commit 679ae8bcbb
1 changed files with 1 additions and 0 deletions
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src/db/open.rs
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@ -92,6 +92,7 @@ pub fn open_db(path: &PathBuf, engine: Engine, opt: &OpenOpt) -> Result<Db> {
env_builder.map_size(map_size); env_builder.map_size(map_size);
env_builder.max_readers(2048); env_builder.max_readers(2048);
unsafe { unsafe {
env_builder.flag(crate::lmdb_adapter::heed::flags::Flags::MdbNoRdAhead);
env_builder.flag(crate::lmdb_adapter::heed::flags::Flags::MdbNoMetaSync); env_builder.flag(crate::lmdb_adapter::heed::flags::Flags::MdbNoMetaSync);
if !opt.fsync { if !opt.fsync {
env_builder.flag(heed::flags::Flags::MdbNoSync); env_builder.flag(heed::flags::Flags::MdbNoSync);