fsync term
force OS to flush pending writes to physical disk
Without fsync, 'durable' writes can be lost on power failure. Slow — often the bottleneck for write-heavy DBs. Postgres fsync=off destroys durability for speed.
force OS to flush pending writes to physical disk
Without fsync, 'durable' writes can be lost on power failure. Slow — often the bottleneck for write-heavy DBs. Postgres fsync=off destroys durability for speed.