When you’re facing lock waits and blocked queries, it’s tempting to just slather NOLOCK all over the queries. Thing is, this won’t necessarily fix it, and there are much better ways to track, diagnose, and cure blocking issues. In this module, Brent demonstrates locks, blocks, lock escalation, how to use indexes to avoid lock escalation,…
Wait Types – LCK% – Locking Snapshot RCSI Part 1 (39 minutes)
When you’re facing lock waits and blocked queries, it’s tempting to just slather NOLOCK all over the queries. Thing is, this won’t necessarily fix it, and there are much better ways to track, diagnose, and cure blocking issues. In this module, Brent demonstrates locks, blocks, lock escalation, how to use indexes to avoid lock escalation,...
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- 01. How to Measure and Change Your SQL Server – 3 Metrics to Gather (23 minutes)
- 02. Measuring Your SQL Server with sp_BlitzFirst and Monitoring Software (24 minutes)
- 03. How to Measure and Change Your SQL Server – The Parts Catalog (7 minutes)
- Wait Types – ASYNC_NETWORK_IO (7 minutes)
- Wait Types – CXPACKET (54 minutes)
- Wait Types – LCK% – Locking Snapshot RCSI Part 2 (29 minutes)
- Wait Types – PAGEIOLATCH Part 1 – Slow Reads from Storage (7 minutes)
- Wait Types – PAGEIOLATCH Part 2 – Ways to Mitigate It (9 minutes)
- Wait Types – RESOURCE_SEMAPHORE (33m)
- Wait Types – SOS_SCHEDULER_YIELD (44m)
- Wait Types – THREADPOOL (27m)
- Wait Types – WRITELOG (12m)