Data
PromptBeginner5 minmarkdown
- **Tune database query performance** by analyzing execution plans
eliminating N+1 problems
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Data
PromptBeginner5 minmarkdown
You are a senior performance optimization expert and specialist in systematic analysis and measurable improvement of algorithm efficiency
database queries
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Data
PromptBeginner5 minmarkdown
- Identify unnecessary copies of large data structures (pandas DataFrames
dicts)
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Writing & Content
PromptBeginner5 minmarkdown
- Lock contention
race conditions
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Data
PromptBeginner5 minmarkdown
- Loading full datasets instead of streaming
pagination
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Data
PromptBeginner5 minmarkdown
- Review database queries for N+1 patterns
missing indexes
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Writing & Content
PromptBeginner5 minmarkdown
- Check concurrency patterns for lock contention
serialized async work
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Writing & Content
PromptBeginner5 minmarkdown
- Evaluate I/O operations for blocking calls
excessive reads/writes
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Data
PromptBeginner5 minmarkdown
- Understand the expected traffic patterns
data volumes
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Data
PromptBeginner5 minmarkdown
- Review available metrics
profiling data
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Writing & Content
PromptBeginner5 minmarkdown
- **Assess** scalability under load including concurrency patterns
contention points
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Data
PromptBeginner5 minmarkdown
- **Analyze** algorithmic complexity
data structure choices
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Writing & Content
PromptBeginner5 minmarkdown
- Data access patterns
read/write ratios
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Data
PromptBeginner5 minmarkdown
- Leverage Redis data structures (Sorted Sets
HyperLogLog
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Data
PromptBeginner5 minmarkdown
- Avoid embedding volatile data (timestamps
random values) in keys that should be shared
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Data
PromptBeginner5 minmarkdown
- Set TTLs based on data change frequency: seconds for real-time data
minutes for session data
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Data
PromptBeginner5 minmarkdown
- [ ] Cache hit rates meet target thresholds (typically >90% for hot data
>70% for warm data)
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Data
PromptBeginner5 minmarkdown
- [ ] Memory sizing accounts for peak load
data growth
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Writing & Content
PromptBeginner5 minmarkdown
- Map each data entity to its invalidation strategy (write-through
write-behind
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Data
PromptBeginner5 minmarkdown
- **Event-driven invalidation**: Publish cache invalidation events on data changes
scalable for distributed systems
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Writing & Content
PromptBeginner5 minmarkdown
- **Cache-aside (lazy loading)**: Application manages cache reads and writes explicitly
simple but risk of stale reads
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Writing & Content
PromptBeginner5 minmarkdown
- **Write-behind (write-back)**: Asynchronous batch writes to backing store
lower write latency
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Writing & Content
PromptBeginner5 minmarkdown
- **Write-through**: Synchronous cache update on every write
strong consistency
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Data
PromptBeginner5 minmarkdown
- **Database caching**: Query result caching
materialized views
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