Things have been cool for months, but…something went wrong. Everybody’s a sysadmin here, and no one’s fessing up to any changes. Maybe somebody changed something on the server, but we just don’t have any good change tracking at all to know what changed, or why. Is there just one change you can make to put…
3.6 Lab 6 Setup: Emergency Triage
Things have been cool for months, but…something went wrong. Everybody’s a sysadmin here, and no one’s fessing up to any changes. Maybe somebody changed something on the server, but we just don’t have any good change tracking at all to know what changed, or why. Is there just one change you can make to put...
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- 0.1 Prerequisites Before the Class
- 0.2 Download the Slides and Scripts
- 1.1 How to Measure Your SQL Server
- 1.2 How to Fix PAGEIOLATCH Waits
- 1.3 Lab 1: Fixing PAGEIOLATCH Waits
- 1.4 How to Fix CPU Waits (SOS_SCHEDULER_YIELD)
- 1.5 Lab 2: CPU-Intensive Workload
- 2.1 How to Fix Parallelism Waits (CXPACKET, CXCONSUMER, and LATCH_EX)
- 2.2 Plan Caching and Parameterization
- 2.3 Lab 3: Mixed Workload
- 2.4 How to Fix Blocking Waits (LCK%)
- 2.5 Lab 4 Setup: Planning the Work
- 3.1 How to Fix Worker Thread Waits (THREADPOOL)
- 3.2 How to Fix Query Memory Waits (RESOURCE_SEMAPHORE)
- 3.3 How to Fix Hardware-Sounding Waits (WRITELOG, HADR_SYNC_COMMIT, ASYNC_NETWORK_IO)
- 3.4 Lab 5 Setup: Architecture Changes
- 3.5 How to Triage Performance Emergencies
- Bonus: Abnormal Parallelism
- Bonus: Storytelling Time