Remove `busy_places` now that it's unused. There's also probably a better place to put `map_count` in the struct layout to avoid false sharing with `cpu_writers`. I'd repack the whole struct if we're going to be adding and removing fields.
Remove `busy_places` now that it's unused. There's also probably a better place to put `map_count` in the struct layout to avoid false sharing with `cpu_writers`. I'd repack the whole struct if we're going to be adding and removing fields.