Sarpedon Quality Lab LLC – data & security – specialist for Microsoft SQL Server, Azure SQL and SQL database in Fabric

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Azure SQL & SQL Server Performance

Wait-stat driven tuning and availability group health checks for environments where "it feels slow" isn't good enough — root-cause diagnosis, not index-rebuild guesswork.

Sub-Topics

What's covered

Diagnosis

Wait Stats & Root Cause

Reading wait statistics correctly to find the actual bottleneck — CPU, I/O, locking, or memory — before touching a single index.

Availability

Always On Availability Groups

Health checks and configuration review for AG environments where failover behavior and synchronization health matter as much as raw throughput.

Azure SQL

Azure SQL Performance Tuning

Service tier sizing, query store analysis, and the starting order that actually moves the needle in Azure SQL Database.

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Performance articles

Performance

Always On Availability Groups: A Practical Deep Dive

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Performance

Azure SQL Performance Tuning: Where to Actually Look First

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Something running slower than it should?

Let's find the actual bottleneck before you spend a maintenance window guessing at fixes.

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