Accessing 1000s of items, single mutex?

[Auburn]

If I'm doing 1000s of lookups into the hash map in a loop is there a way to have a single read mutex that can encapsulate the loop instead of getting a mutex for each find()?

Thanks

[greg7mdp]

Yes, nothing prevents you from creating the hash map without an internal mutex (use the default phmap::NullMutex) and use your own mutex outside of phmap.

You can also use if_contains_unsafe() to do a lookup without locking the internal mutex,, as long as there are no concurrent writes being made to the map.