Sqlite WAL mode : how much time should I expect to be locked in WAL mode?

问题

I plan to use Sqlite with WAL mode (on a web server).

As I understand, the reads are never blocked with this mode, even when write occurs in the same time.

There is still only one write transaction at a time but I guess the lock time is short because the actual write on the db occurs only when the WAL file exceed a certain size.

So :

• How much time should I expect to be locked in WAL mode when the transaction is written on the WAL file ? When the WAL file is commited ?

• Is there any benchmarks out there testing that point ?

thanks.

来源：https://stackoverflow.com/questions/56865379/sqlite-wal-mode-how-much-time-should-i-expect-to-be-locked-in-wal-mode