PHP 效能 - 快取篇

1. APC
2. Memcache

何時用APC (獨立在一台server)

• Application Settings
• Configuration
• Data is the same for each user
• request都由同一台server responses(i.e sticky session)
• file upload process & sessions (if using sticky session)

何時用Memcache (分散在不同的servers)

• 當request不保證指向同server時
• Data is specific or targeted to a user
• User sessions

References

• Caching with Memcached and APC