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  The File I/O Performance Monitor

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Big Picture

hIOmon WMI Browser Screen Shots -
"Process-Based" File I/O Summary Display Examples

Product Info

The hIOmon WMI Browser includes several "Process-based" File I/O Summary displays (which require the hIOmon "Summarized Data Licensing Option"); these displays give you a complete but concise file-level view of your real-time I/O activity in terms of your particular processes/applications.  The displays provide a summarized profile of the I/O operations upon a specific process/application basis as observed and monitored by the hIOmon I/O Monitor in accordance with the selected Filter Selection.

Features

Architecture

Screen Shots

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Supporting a comprehensive set of vital I/O performance metrics (including minimum, average, and maximum response times; I/O Operations per Second (IOPS); data transfer sizes and rates; system file cache metrics; random/sequential access percentages; queue lengths, idle times and more), the hIOmon WMI Browser File I/O Summary displays let you easily see the actual I/O performance of your individual files on a particular process/application basis.  This hIOmon feature allows you to finally answer, at a glance with empirical data, the question: "How fast are your files?™" in terms of your specific applications.

The following screen shots show two examples of the Process-based File I/O Summary displays provided by the hIOmon WMI Browser.  The first example shows the real-time summarized I/O operation performance metrics for a specific process; note that a similar displays for a specific Device Summary as well as a specific File are also supported.  The second example shows the real-time summarized I/O operation performance metrics on a "Top Ten Processes" basis and in a requested sort sequence; note that similar displays for "Top Ten Files" and "Top Ten Devices" are also supported.

   Performance Metrics for a Specific PROCESS

Process Name List

As shown in the screen shot above, the hIOmon WMI Browser "Process Performance Metrics" menu option display shows that the "OUTLOOK.EXE(81)" process is one of 33 processes at the selected hIOmon Manager (running upon the server called "hyperIO1") for which the hIOmon I/O Monitor currently has summarized file I/O operation performance metrics upon a specific process-basis.  The drop-down box below the "Get Process Name List" button includes the names of these 33 processes (with each process name including the associated process ID, account/user name and system session ID).

Selected Process File I/O Operation Performance Metrics Display Table

The hIOmon WMI Browser "Process Performance Metrics" menu display includes the option to display selected summarized file I/O operation performance metrics for a particular process.  You can use the "Add Metric to Table" button to explicitly add particular file I/O operation performance metrics of interest to the display table.  You can also use the "Add Process to Table" button to add those particular processes of interest that are to be included within the display table.

As shown in the screen shot above, the "OUTLOOK.EXE(81)" process has been added to the display table.  The Read Fast IOP count and Write Fast IOP count metrics along with the associated file count and file names (i.e., those files to which the associated process directed a file I/O operation and for which the hIOmon I/O Monitor has summarized file I/O operation performance metrics) have also been explicitly added to the display table (the Read and Write I/O operation counts, amount of data transferred, and average response time metrics are included within the display table by default).

The "Get Metrics" button can be used to refresh the display table (i.e., update the table contents with the most recent metric values).

"Top Ten Processes" Performance Metrics

Top Ten Processes Display

As shown in the screen shot above, the hIOmon WMI Browser "Top Ten Processes" menu option display can be used to show the names of the current "Top Ten Processes" based upon a particular sort order sequence that you can choose (with more than 190 sort order sequences available); an explanation of the selected sort order sequence is included within the display.  In addition to the specific sort order sequence, you can also select whether the sort order is to be in ascending order (with descending order the default) along with the particular file I/O operation performance metrics of interest that are to be included within the display table (e.g., the associated "File Count" metric has been explicitly added to the display table in the example above).  A multiple sort-order sequence option is also supported.

The "Refresh" button can be used to refresh the display table (i.e., update the table contents with the most recent metric values).  Note that metric values that have changed are highlighted in bold.

To display other processes (within the same sort order sequence) beyond the initial "Top Ten", simply enter the desired starting number in the input box provided.  For example, to display the next ten top processes (that is, the next ten processes immediately below the top ten processes), you can enter a starting number value of 11; this will result in processes eleven (11) through twenty (20) being displayed within the table.  The starting number value enables you to display the other processes below the top ten based upon your requested sort order.

Sort Order Sequence Options

The hIOmon WMI Browser "Top Ten" displays allow you to request a particular sort order sequence; more than 190 sort order sequences are supported including the following (note that "SystemCache" represents "System Cache Metrics" and "PhyDev" represents "Physical Device Extended Metrics").

hyperI/O^sm -  improving the performance of storage I/O in computer servers