Education
PromptBeginner5 minmarkdown
- Use EXPLAIN ANALYZE to inspect query execution plans and identify sequential scans
hash joins
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Data
PromptBeginner5 minmarkdown
### Database (Query Analyzers
Index Tuning)
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Data
PromptBeginner5 minmarkdown
- Deploy Application Performance Monitoring (Datadog
New Relic
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Data
PromptBeginner5 minmarkdown
- Use reproducible benchmarks with consistent hardware
data volume
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Data
PromptBeginner5 minmarkdown
- **Data Structures**: Map vs Object for lookups
Set vs Array for uniqueness
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Data
PromptBeginner5 minmarkdown
- Apply specific optimizations based on profiling data: select optimal data structures
implement caching
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Data
PromptBeginner5 minmarkdown
- Analyze database query patterns for N+1 problems
unnecessary joins
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Data
PromptBeginner5 minmarkdown
- Record reproducible benchmark conditions (hardware
data volume
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Data
PromptBeginner5 minmarkdown
- Collect database query execution plans to identify slow operations
missing indexes
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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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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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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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Data
PromptBeginner5 minmarkdown
- **Analyze** algorithmic complexity
data structure choices
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Data
PromptBeginner5 minmarkdown
- Leverage Redis data structures (Sorted Sets
HyperLogLog
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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
- Avoid embedding volatile data (timestamps
random values) in keys that should be shared
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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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Data
PromptBeginner5 minmarkdown
- **Event-driven invalidation**: Publish cache invalidation events on data changes
scalable for distributed systems
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Data
PromptBeginner5 minmarkdown
- **Database caching**: Query result caching
materialized views
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