Get-DbaSpinLockStatistic

NAME Get-DbaSpinLockStatistic



SYNOPSIS

Displays information from sys.dm_os_spinlock_stats. Works on SQL Server 2008 and above.





SYNTAX

Get-DbaSpinLockStatistic [-SqlInstance] <Sqlcollaborative.Dbatools.Parameter.DbaInstanceParameter[]>

[[-SqlCredential] <Pscredential>] [-EnableException <Switch>] [<CommonParameters>]





DESCRIPTION

This command is based off of Paul Randal's post "Advanced SQL Server performance tuning"



Returns:



SpinLockName



Collisions



Spins



SpinsPerCollision



SleepTime



Backoffs



Reference: https://www.sqlskills.com/blogs/paul/ad ... spinlocks/





PARAMETERS

-EnableException [<Switch>]

By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.

This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables

advanced scripting.

Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own

try/catch.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-SqlCredential [<Pscredential>]

Login to the target instance using alternative credentials. Accepts PowerShell credentials (Get-Credential).



Windows Authentication, SQL Server Authentication, Active Directory - Password, and Active Directory -

Integrated are all supported.



For MFA support, please use Connect-DbaInstance.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



-SqlInstance [<Sqlcollaborative.Dbatools.Parameter.DbaInstanceParameter[]>]

The SQL Server instance. Server version must be SQL Server version 2008 or higher.



Required? false

Position? named

Default value

Accept pipeline input? False

Accept wildcard characters? false



<CommonParameters>

This cmdlet supports the common parameters: Verbose, Debug,

ErrorAction, ErrorVariable, WarningAction, WarningVariable,

OutBuffer, PipelineVariable, and OutVariable. For more information, see

about_CommonParameters (https:/go.microsoft.com/fwlink/?LinkID=113216).



INPUTS



OUTPUTS



NOTES





Tags: SpinLockStatistics, Waits

Author: Patrick Flynn (@sqllensman)



Website: https://dbatools.io

Copyright: (c) 2018 by dbatools, licensed under MIT

License: MIT https://opensource.org/licenses/MIT



-------------------------- EXAMPLE 1 --------------------------



PS C:\\>Get-DbaSpinLockStatistic -SqlInstance sql2008, sqlserver2012



Get SpinLock Statistics for servers sql2008 and sqlserver2012.

-------------------------- EXAMPLE 2 --------------------------



PS C:\\>$output = Get-DbaSpinLockStatistic -SqlInstance sql2008 | Select-Object * | ConvertTo-DbaDataTable



Collects all SpinLock Statistics on server sql2008 into a Data Table.

-------------------------- EXAMPLE 3 --------------------------



PS C:\\>'sql2008','sqlserver2012' | Get-DbaSpinLockStatistic



Get SpinLock Statistics for servers sql2008 and sqlserver2012 via pipline

-------------------------- EXAMPLE 4 --------------------------



PS C:\\>$cred = Get-Credential sqladmin



PS C:\\> Get-DbaSpinLockStatistic -SqlInstance sql2008 -SqlCredential $cred



Connects using sqladmin credential and returns SpinLock Statistics from sql2008



RELATED LINKS

https://dbatools.io/Get-DbaSpinLockStatistic