Performance antipatterns and monitoring strategies.
Performance antipatterns are recurring design mistakes that systematically degrade system performance, often appearing benign in development but catastrophic at
The Busy Database antipattern occurs when your database becomes the bottleneck by handling excessive queries, performing application-layer logic, or suffering f
The Busy Frontend antipattern occurs when client-side code performs too much work synchronously, blocking the main thread and degrading user experience. Common
Chatty I/O is a performance antipattern where an application makes numerous small, sequential I/O requests instead of fewer, batched operations. Each network ca
Extraneous fetching occurs when systems retrieve more data than needed for a specific operation—like fetching entire user profiles when only names are required.
Improper instantiation occurs when applications repeatedly create expensive objects instead of reusing them, causing memory pressure, garbage collection storms,
Monolithic persistence is the antipattern of using a single database to serve all application components, creating a bottleneck as systems scale. This approach
The No Caching antipattern occurs when systems repeatedly fetch or compute the same data without storing results for reuse, forcing every request to hit slow ba
The Noisy Neighbor antipattern occurs when one tenant or component monopolizes shared resources (CPU, memory, I/O, network), degrading performance for others in
A retry storm occurs when multiple clients simultaneously retry failed requests without backoff, creating an amplification effect that overwhelms downstream ser
Synchronous I/O blocks the calling thread while waiting for network, disk, or database operations to complete, wasting CPU resources and limiting throughput. Th
Monitoring is the practice of collecting, aggregating, and analyzing data about system behavior to detect problems, understand performance, and inform operation
Health monitoring continuously verifies that system components are alive and functioning correctly by checking their ability to process requests. Unlike metrics
Availability monitoring tracks whether your system is operational and accessible to users over time, measuring uptime percentages (99.9%, 99.99%) and generating
Performance monitoring is the continuous observation and measurement of system behavior under load to detect degradation before it causes failures. It tracks me
Security monitoring is the continuous observation and analysis of system access patterns, authentication events, and resource usage to detect and respond to sec
Usage monitoring tracks how users interact with system features and resources—which endpoints get hit, which features are used, and how much capacity each tenan
Instrumentation is the practice of embedding code into your application to emit telemetry data—metrics, logs, traces, and events—that reveal system behavior in
Visualization transforms raw metrics into dashboards that reveal system health at a glance, while alerts proactively notify operators when thresholds are breach