このレッスンは、現在英語のみです。
Remember the answer
The leaderboard's top 100 is read thousands of times a minute but changes only every few seconds. Asking the database each time is wasted work. A cache keeps a recent answer in fast memory.
このレッスンは、現在英語のみです。
The leaderboard's top 100 is read thousands of times a minute but changes only every few seconds. Asking the database each time is wasted work. A cache keeps a recent answer in fast memory.