OSS TanbouOverview
Memcached is a high-performance, multithreaded, event-based key/value cache server. It keeps recomputable data in memory for low-latency application access, reducing repeated database or service calls through a deliberately simple cache layer shared by clients and servers.
Features and best fit
Based on official documentation; not hands-on tested · Content checked:
Serve in-memory keys and values through non-blocking network I/O
The official README describes Memcached as a high-performance multithreaded event-based key/value cache. It builds on libevent and can optionally enable OpenSSL-based TLS and proxy functionality, then runs as a network-accessible shared cache service.
Sources: [1]
For accelerating hot paths whose data can be retrieved again
It fits database-query results, session-adjacent data, API responses, and rendered fragments that can be reconstructed after expiration or eviction. Keep authoritative data elsewhere and make key design, TTLs, cache misses, and stampede control explicit in the application.
Sources: [1]
Treat it as memory, not persistent storage, and plan swap and eviction
The README says Memcached uses non-blocking network I/O but not disk and warns operators to prevent cache machines from swapping. It also cautions that the -k mlockall option can be dangerous with a large cache. Plan capacity, TTLs, eviction, restarts, node loss, network exposure, and security boundaries, enabling TLS when needed. The license is BSD 3-Clause.
Official sources
- [1]Memcached README(2026-09-13)
- [2]Memcached LICENSE(2026-09-13)
Supplemental curator note
Selected as a mature project whose distinctive memory-cache-daemon name stays highly searchable without relying on GitHub topics.
Growth
Growth trends · Last 30 days
14,271 Stars
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Development activity
Last 90 days · weekly
- Commits (last 30 days)
- 0
- Open PRs
- 34
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GitHub data
GitHub dataView detailed GitHub data
- Stars
- 14,271
- Forks
- 3,346
- Watchers
- 664
- Open issues
- 71
- Primary language
- C
- License
- BSD-3-Clause
- Repository last updated
- Sep 11, 2026
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