• Jeff Moden (12/10/2012)


    In that case, the number of page reads has a direct correlation to the number of and "age" (they empty space may have be inserted to) of page splits because the scans have to read more pages to get the same info as if the pages weren't split.

    Yeah, but that's not going to spike the Memory\page reads/sec counter in perfmon (assuming that is the counter that the OP is looking at), because that counter is tracking hard page faults (pages in virtual memory not in physical memory), it's not a SQL-specific counter that tracks database pages read.

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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