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PromptBeginner5 minmarkdown
- Use EXPLAIN ANALYZE to inspect query execution plans and identify sequential scans
hash joins
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hash joins
>50ms for OLTP queries)
Index Tuning)
Zipkin) to identify cross-service latency bottlenecks
JMeter
py-spy for Python
New Relic
Profilers
Lighthouse
speed vs memory)
memory limitations
input/output requirements
not just local improvements
but strategic optimization is essential
data volume
p95
<50ms (p95) for database queries
FID <100ms
measured impact
verify:
measuring after each change
memory vs CPU
GC frequency
queries