Technologies/Express/express.http.response_time.avg
ExpressExpressMetric

express.http.response_time.avg

Average response time
Dimensions:None
Available on:DatadogDatadog (1)
Interface Metrics (1)
DatadogDatadog
The average response time
Dimensions:None
Sources
node.express.router.response_time.avgdocs.datadoghq.com

Technical Annotations (19)

Configuration Parameters (2)
NODE_ENVrecommended: production
Enables template caching, CSS caching, and reduces error verbosity for 3x performance gain
limitrecommended: 50
Pagination limit to prevent unbounded result sets
CLI Commands (1)
npx clinic doctor -- node app.jsdiagnostic
Technical References (16)
morgancomponentN+1 queryconceptconnection poolcomponentPerformanceObservercomponentperformance.markcomponentperformance.measurecomponentv8-profilercomponentClinic.jscomponentRediscomponentMemcachedcomponentpercentileconcepttail latencyconceptevent loopcomponentcallback queuecomponentcompressioncomponentngx_http_gzip_modulecomponent
Related Insights (9)
Slow API response times indicate processing bottleneckswarning
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NODE_ENV not set to production causes 3x performance degradationwarning
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N+1 database queries with eager loading cause connection exhaustioncritical
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Slow operations over 100ms threshold degrade user experiencewarning
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High response times from application bottleneckswarning
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Slow tail latency from outlier requests obscured by averageswarning
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Event loop 100% utilization causes request latency spikes and timeoutscritical
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Uncompressed responses increase bandwidth and latencyinfo
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Repeated identical requests without caching waste resourcesinfo
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