Scaling Gaming Leaderboards with Redis Sorted Sets

System Design diagram · made in Skemio

System architecture diagram of a gaming leaderboard showing game servers updating Redis Sorted Sets using ZADD and fetching rankings with ZREVRANGE.

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What it shows

Redis ZSet uses a skip list and hash table to deliver O(log N) operations.
ZADD updates scores instantly while ZREVRANGE fetches top players in ms.
Read replicas serve leaderboard queries without degrading write throughput.

The takeaway

Skip lists give you real-time rank lookups without costly relational table scans.

#SystemDesign
#Redis
#GameDev
#DataStructures
#Backend
#HighScale

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