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EntireTwix 2021-07-15 21:18:50 -07:00
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docs/features/implementation.md
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<!-- phmap vs std hash map -->
#### STD vs phmap
this parallel hashmap implementation is the basis of CCash, its where all the user data is stored, compared to the STD's `std::unordered_map<T>` its much faster, this, multi threading support, and more can be found in the [writeup](https://greg7mdp.github.io/parallel-hashmap/).
![image](https://raw.githubusercontent.com/greg7mdp/parallel-hashmap/master/html/img/stl_flat_both.PNG)
![image](https://raw.githubusercontent.com/greg7mdp/parallel-hashmap/master/html/img/lock_various_sizes.PNG)
#### Scalability
below is `GetBal()` being called where `x` axis grows with # of users reaching 10 million users, `y` axis is time in ns. The name given is random between 0 and max users at that time as to provide more accurate results.
![image](GetBal().png)