Will more memory help my CPU-peaking SQL Server 2008 R2

Posted by Tor Haugen on Server Fault See other posts from Server Fault or by Tor Haugen
Published on 2012-11-05T15:31:53Z Indexed on 2012/11/05 17:04 UTC
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Filed under:

sql-server

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sql-server-2008

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memory

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sql-server-2008-r2

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cpu-usage

I'm supporting a system running against a SQL Server 2008 R2. The server is a single-CPU box with 8 GB of memory. As traffic has increased, the server has started saturating, peaking to 100% CPU ever more often.

Disk I/O remains moderate (somewhat surprisingly).

Obviously, a new server would be the best option. But failing that, can I expect a noticable improvement from installing more RAM? Or does RAM only help for I/O issues (through caching)?

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