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SQL Server performance series: PAGELATCH_ and PAGEIOLATCH_ wait types: relates to concurrency, take steps in diagnosing and resolving latch contention issues.

published 207 days, 11 hours, 31 minutes ago posted by

sa 216 days, 12 hours, 22 minutes ago

SQL Server performance series: PAGELATCH_ and PAGEIOLATCH_ wait types: relates to concurrency, take steps in diagnosing and resolving latch contention issues.

Contention is the word that you need to concentrate in resolving the performance issue, page latches contention is common in multi-CPU systems due to the nature of w hen multiple threads concurrently attempt to acquire incompatible latches to the same in-memory structure. Going back to basiscs a latch is an internal mechanism that is used by SQL DB engine automaticatlly to determine when to use it. By design they are deterministic and any behavior of schema design can affect the issue.One of the...(read more)

category: News | clicked: 0 | | source: sqlserver-qa.net | show counter code

tags: buffers, cpu, DBA, dmvs, Memory, pageiolatch, perfmon, Performance, performance monitoring, SQL Server, tuning, wait stats

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SQL Server performance series: PAGELATCH_ and PAGEIOLATCH_ wait types: relates to concurrency, take steps in diagnosing and resolving latch contention issues.

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