SQL server peformance, virtual memory usage

Posted by user45641 on Server Fault See other posts from Server Fault or by user45641
Published on 2010-06-12T04:29:24Z Indexed on 2010/06/12 4:33 UTC
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Filed under:

memory

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sql

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performance-tuning

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database-performance

Hello, I have a very large DB used mostly for analytics. The performance overall is very sluggish. I just noticed that when running the query below, the amount of virtual memory used greatly exceeds the amount of physical memory available. Currently, physical memory is 10GB (10238 MB) whereas the virtual memory returns significantly more - 8388607 MB. That seems really wrong, but I'm at a bit of a loss on how to proceed.

USE [master]; GO select
cpu_count , hyperthread_ratio , physical_memory_in_bytes / 1048576 as 'mem_MB' , virtual_memory_in_bytes / 1048576 as 'virtual_mem_MB' , max_workers_count , os_error_mode , os_priority_class from
sys.dm_os_sys_info

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