Pine longe has released version three of its underline file system, wire tiger. It's not the default at the moment, but with mungety b three point o, we made the option available to swap our old storage engine with wired tiger. The performance characteristics ise still a little complex, so i'm not going to make inexpert pronouncements on that. But sere were the large number of use cases where a tiger seems to be much, much higher performance. And it especially has much better concurrency.