Cloud-NativeIntermediate
OpenTelemetry in .NET: Logs, Metrics and Distributed Tracing
Instrument .NET apps with OpenTelemetry: ActivitySource traces, Meter metrics, ILogger logs, OTLP export, sampling, propagation and backends.
Diagnostics & Debugging
21 articles about Diagnostics & Debugging: in-depth .NET and AI guides, senior interview questions and AI news on DotNet AI Hub.
Technologies 7
Data & EF CoreAdvanced
EF Core Performance Tuning: Proven Techniques and Checklist
Speed up EF Core with proven techniques: no-tracking queries, projections, split queries, pooling, compiled queries, bulk updates, indexes and SQL logging.
Platform & RuntimeAdvanced
Inside the CLR: How .NET Loads, Compiles and Executes Your Code
A deep dive into CLR internals: IL and metadata, the type loader, MethodTables, precode and JIT, interface dispatch, object layout, AssemblyLoadContext and SOS.
Platform & RuntimeAdvanced
Garbage Collection in .NET: Generations, Modes and Tuning
How the .NET garbage collector works: generations, LOH and POH, regions, workstation vs server GC, DATAS, container limits, finalization and tuning.
Platform & RuntimeAdvanced
JIT Compilation, Tiered Compilation and Dynamic PGO in .NET
How RyuJIT, tier 0/tier 1 compilation, On-Stack Replacement and Dynamic PGO trade startup time for throughput, and how to inspect and tune them.
PerformanceAdvanced
.NET Diagnostics Toolkit: Counters, Traces and Dumps
A practical guide to dotnet-counters, dotnet-trace, dotnet-dump, dotnet-gcdump and dotnet-monitor for diagnosing .NET apps in production.
PerformanceAdvanced
Finding and Fixing Memory Leaks in .NET Applications
How memory leaks happen in a garbage-collected runtime, the most common causes, and a step-by-step workflow to find and fix them with gcdump and SOS.
Interview Questions 14
Async & ConcurrencySenior
Deadlocks and Race Conditions Interview Questions
Senior-level questions on sync-over-async deadlocks, lock ordering, TOCTOU races, dump analysis and avoiding shared mutable state.
Cloud & DevOpsSenior
Docker and Kubernetes Interview Questions for .NET Developers
Senior Docker and Kubernetes interview questions for .NET developers: image size, container-aware GC, probes, graceful shutdown, config and autoscaling.
CLR InternalsSenior
Assembly Loading and Versioning Interview Questions
Senior .NET interview questions on probing, deps.json, AssemblyLoadContext isolation and unloading, diamond dependencies, strong naming and roll-forward.
CLR InternalsSenior
CLR Architecture Interview Questions for Senior .NET Developers
Senior .NET interview questions on CLR internals: IL and metadata, type loading, AssemblyLoadContext, CoreCLR vs Mono vs NativeAOT and method dispatch.
CLR InternalsSenior
Exception Handling Interview Questions for Senior .NET Engineers
Ten senior .NET interview questions on exception cost, the two-pass model, filters, ExceptionDispatchInfo, IExceptionHandler and Result patterns.
CLR InternalsSenior
Garbage Collector Interview Questions: Generations, Modes and Tuning
Senior .NET interview questions on GC internals: generations, card tables, LOH/POH and regions, server vs workstation GC, DATAS, latency modes and containers.
CLR InternalsSenior
JIT, Tiered Compilation and AOT Interview Questions
Senior .NET interview questions on tiered compilation, OSR, Dynamic PGO, ReadyToRun, inlining, devirtualization, bounds-check elimination and Native AOT.
CLR InternalsSenior
Thread Pool Internals Interview Questions for Senior .NET Engineers
Ten thread pool interview questions covering worker vs I/O threads, hill-climbing, starvation, SetMinThreads and the .NET 6 portable pool.
Advanced C#Senior
IDisposable, Finalizers and Resource Management Interview Questions
Senior C# interview questions on the dispose pattern, finalizers, SafeHandle, IAsyncDisposable, DI disposal rules and HttpClient socket exhaustion.
Data & EF CoreSenior
EF Core Performance Interview Questions
Senior EF Core performance interview questions on N+1 queries, split queries, tracking, bulk updates, compiled queries and DbContext pooling.
Distributed SystemsSenior
Observability and Distributed Tracing Interview Questions
Senior and architect .NET interview questions on OpenTelemetry, W3C trace context propagation, sampling strategies, structured logging, SLOs and alerting.
PerformanceArchitect
High-Throughput .NET Services Interview Questions
Architect-level interview questions on Kestrel tuning, async I/O, System.IO.Pipelines, pooling, backpressure, Server GC with DATAS and tail latency.
PerformanceLead
Memory Leak Diagnosis Interview Questions for .NET Engineers
Lead-level .NET interview questions on diagnosing memory leaks: counters, gcdump, SOS dumpheap and gcroot, unmanaged leaks, fixes and regression monitoring.
PerformanceSenior
Performance Profiling Interview Questions for .NET Developers
Senior .NET interview questions on performance profiling: sampling vs instrumentation, dotnet-trace, PerfView, flame graphs, lock contention and starvation.