Remote / Local node page looups/sec both zero

  • When I try to monitor the sys.dm_os_performance counters "SQLServer:Buffer Node\Local node page lookups/sec" and "SQLServer:Buffer Node\Remote node page lookups/sec" they consistently show up as zero on all our servers. (2008 R2 SP1):

    object_name counter_name instance_namecntr_valuecntr_type

    SQLServer:Buffer NodeLocal node page lookups/sec 3 0 272696576

    SQLServer:Buffer NodeRemote node page lookups/sec 3 0 272696576

    SQLServer:Buffer NodeLocal node page lookups/sec 2 0 272696576

    SQLServer:Buffer NodeRemote node page lookups/sec 2 0 272696576

    SQLServer:Buffer NodeLocal node page lookups/sec 0 0 272696576

    SQLServer:Buffer NodeRemote node page lookups/sec 0 0 272696576

    SQLServer:Buffer NodeLocal node page lookups/sec 1 0 272696576

    SQLServer:Buffer NodeRemote node page lookups/sec 1 0 272696576

    Now, clearly, they shouldn't BOTH be zero! Is anyone else having the same issue? I can't find any documentation / blogs / cries for help out there from any other sufferers.

  • I am seeing the same thing on one of my server I just looked at. The is a 4 processor (x 6 core each) box with 128 GB of RAM.

    I agree with you, at lease one of the counters should have a value for the 4 NUMA / Buffer Nodes.

  • http://blogs.msdn.com/b/psssql/archive/2010/02/23/how-it-works-sql-server-2008-numa-and-foreign-pages.aspx

    Other Performance Counters:

    The following counters are incremented when the 'get' call is made to the buffer pool to satisfy access to a specific database page.

    Description

    Buffer Node: Local node page lookups/sec

    Buffer Node: Remote node page lookups/sec

  • Yep, zeros for me, too.

    I've got these counters added. All of them have values as expected except the local and remote lookups/sec. I've seen this behavior in SQL Server 2008 R2 and SQL Server 2008 R2 SP1, on Intel servers (2 and 4 NUMA node servers) and AMD servers (4 socket, 8 NUMA node servers).

    \SQLServer:Buffer Node(*)\Database Pages

    \SQLServer:Buffer Node(*)\Foreign Pages

    \SQLServer:Buffer Node(*)\Free Pages

    \SQLServer:Buffer Node(*)\Local node page lookups/sec

    \SQLServer:Buffer Node(*)\Page Life Expectancy

    \SQLServer:Buffer Node(*)\Remote node page lookups/sec

    \SQLServer:Buffer Node(*)\Stolen Pages

    \SQLServer:Buffer Node(*)\Target Pages

    \SQLServer:Buffer Node(*)\Total Pages

  • I am also facing the same issue in SQL 2008 R2 SP2 . Please post if anyone find solution for this problem.

    Thanks in advance.

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