Forum Replies Created

Viewing 15 posts - 15,691 through 15,705 (of 22,227 total)

  • RE: Parallelism bad?

    It's all based on the estimated costs of the query as determined by the optimizer. If that estimate is higher than the cost threshold for parallelism, then you have the...

    "The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
    - Theodore Roosevelt

    Author of:
    SQL Server Execution Plans
    SQL Server Query Performance Tuning

  • RE: SQL Buffer manager: Page life expectancy

    Yep, that's it. It's a DMV to give you a view into what things are waiting for what in the server. You'll need to look in BOL or online at...

    "The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
    - Theodore Roosevelt

    Author of:
    SQL Server Execution Plans
    SQL Server Query Performance Tuning

  • RE: SQL Buffer manager: Page life expectancy

    There's still not enough information to see exactly what the cause of slow performance might be. I'd suggest you gather data using sys.dm_os_wait_stats. Get that information together over a period...

    "The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
    - Theodore Roosevelt

    Author of:
    SQL Server Execution Plans
    SQL Server Query Performance Tuning

  • RE: sp_executesql - LINQ - Performance tuning

    sp_executesql is actually one of the best ways to run ad hoc tsql because you can parameterize it and get more plan reuse.

    It sounds like, possibly, you're hitting a parameter...

    "The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
    - Theodore Roosevelt

    Author of:
    SQL Server Execution Plans
    SQL Server Query Performance Tuning

  • RE: SQL Buffer manager: Page life expectancy

    It's possible that it's a memory issue. What other metrics have you gathered? Do you have wait statistics available? That will tell you what things are waiting on, which is...

    "The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
    - Theodore Roosevelt

    Author of:
    SQL Server Execution Plans
    SQL Server Query Performance Tuning

  • Viewing 15 posts - 15,691 through 15,705 (of 22,227 total)