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Disk I/O

Overview: Displays disk reads, writes, and flushes in a histogram, as shown in the following screen shot.

Screen shot of a graph showing disk reads, writes, and flushes in a histogram

Graph Type: Histogram graph

Y-axis Units: Count of disk read, write and flush operations

Required Flags: DISK_IO

Events Captured: Disk I/O events

Legend Description: The legend allows the user to identify disk reads, writes and flushes based on less than or equal to low priority and greater than or equal to normal priority.

Graph Description: A histogram graph that displays disk activity over time. This graph can provide the analyst with a high level overview of system disk I/O. Please see the Types of Graphs section of this document for the explanation of Histogram graphs.

 

 

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Build date: 5/5/2012

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