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memory sql 2008


memory sql 2008

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Oracle_91
Oracle_91
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Points: 774 Visits: 1742
Hi All,

Recently, i am going through the memory concepts of sql server 2008 and i need some clarifications from expericenced folks to get better clarity on below terms and objects.
What is Memory object and memory node and where does the memory clerks and single allocators and Multi page allocators fit in Memory Allocations.
Basically, How does sql server allocates memory for a request and also interested to know who all are the memory consumers? is the ones which are present in sys.dm_os_memory_clerks(bpool,sqlutilities.. ) are the memory consumers
or else is there anything like external memory consumers. Need clarifications on this.

Any brief descriptions with example would be a great help. Looking forward for your valuable comments.

Thanks in advance.
Orlando Colamatteo
Orlando Colamatteo
SSCrazy Eights
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Group: General Forum Members
Points: 8235 Visits: 14368
Oracle_91 (1/10/2013)
Hi All,

Recently, i am going through the memory concepts of sql server 2008 and i need some clarifications from expericenced folks to get better clarity on below terms and objects.
What is Memory object and memory node and where does the memory clerks and single allocators and Multi page allocators fit in Memory Allocations.
Basically, How does sql server allocates memory for a request and also interested to know who all are the memory consumers? is the ones which are present in sys.dm_os_memory_clerks(bpool,sqlutilities.. ) are the memory consumers
or else is there anything like external memory consumers. Need clarifications on this.

Any brief descriptions with example would be a great help. Looking forward for your valuable comments.

Thanks in advance.

Why do you want to know?

If you are seriously interested in the inner workings of the memory subsystem then I can recommend this book to you:

Microsoft® SQL Server® 2008 Internals (Pro - Developer) [Paperback]
Kalen Delaney (Author), Paul S. Randal (Author), Kimberly L. Tripp (Author), Conor Cunningham (Author), Adam Machanic (Author)


It answers the question you are asking, and a whole lot more related to the topic required to fully understand how memory is managed inside SQL Server 2008.

Spoiler alert: memory management has been drastically reworked in SQL Server 2012 so if you're getting into SQL Server and you want to learn the latest technology then skip the 2008 book and go for Microsoft SQL Server 2012 Internals [Paperback] by Kalen Delaney (Author)

__________________________________________________________________________________________________
There are no special teachers of virtue, because virtue is taught by the whole community. --Plato
Oracle_91
Oracle_91
Right there with Babe
Right there with Babe (774 reputation)Right there with Babe (774 reputation)Right there with Babe (774 reputation)Right there with Babe (774 reputation)Right there with Babe (774 reputation)Right there with Babe (774 reputation)Right there with Babe (774 reputation)Right there with Babe (774 reputation)

Group: General Forum Members
Points: 774 Visits: 1742
Thank you.
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