I wanted to know, how we could disable the write lock, in case the
application shards the writes per thread ? I guess that would imply to have
one btree per thread, isn't it ?
We could as well use as many DB as threads (at the cost of also sharding
the reads) ?
In that case, how can I disable the write lock ?
Would commenting LOCK_MUTEX_W() & UNLOCK_MUTEX_W() make the trick ?