Why Redis is fast?

Related questions

1. What is Redis container?
2. Which among the following are the data structures that are commonly used in Redis?
3. Should I use memcached?
4. Is Redis faster than SQL?
5. What can I do with nginx?
6. How much memory does Redis?
7. Why do I need nginx?
8. How do I flush Redis?
9. Does Redis support SQL?
10. What type of database is Redis?

Tags

1. #store
2. #support
3. #advantages
4. #although
5. #option
6. #speed
7. #memcached
8. #additional
9. #datatypes
10. #major
11. #structure
12. #value
13. #performing
14. #similar
15. #better
16. #server
17. #persistence
18. #phenomenal
19. #often
20. #system
21. #stored
22. #redis