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raw_store_bypass_serialization

🛠️ Bypass Marshal Overhead with Raw JSON Storage​

By default Rails serializes objects with Marshal, which can be slow. You can configure your cache store to use JSON serialization or even write/read raw strings directly for simple data structures.

# config/initializers/cache_store.rb
Rails.application.config.cache_store = :mem_cache_store,
  "localhost:11211", serializer: JSON, compress: false

# Write and read raw JSON
stats = { users: 1_000_000, rate: 0.85 }
Rails.cache.write("app_stats", stats.to_json, raw: true)

json = Rails.cache.read("app_stats", raw: true)
stats = JSON.parse(json, symbolize_names: true)

raw: true skips Rails’ normal serialization pipeline, reducing CPU and memory usage.