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  The File I/O Performance Monitor
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Big Picture

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

Product Info

The hIOmon WMI Browser includes several "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 I/O activity in real-time.  The displays provide a summarized profile of the I/O operations 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 file-level basis.  This hIOmon feature allows you to finally answer, at a glance with empirical data, the question: "How fast are your files?™"

The following screen shots show two examples of the 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 file; note that a similar display for a specific Device Summary is also supported.  The second example shows the real-time summarized I/O operation performance metrics on a "Top Ten Files" basis and in a requested sort sequence; note that similar displays for "Top Ten Devices" and "Top Ten Processes" are also supported.

NOTE:

In addition to its WMI Browser support, hIOmon also features support for other client interfaces, including the hIOmon Presentation Client, the hIOmon Windows® Performance/System Monitor support, and the hIOmon CLI support.  And besides support for standard Excel standard charting/graphing functions, the hIOmon software package includes "hIOmon Add-Ons" that provide hIOmon Excel Template/Macros for easily and quickly generating Microsoft® Office Excel Pivot Tables/Charts.    

   Performance Metrics for a Specific FILE

File Name List

As shown in the screen shot above, the hIOmon WMI Browser "File Performance Metrics" menu option display shows that the "C:\pagefile.sys" file is one of 826 files that are available 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.  The drop-down box below the "Get File Name List" button includes the names of these 826 files.

Selected File I/O Operation Performance Metrics Display Table

The hIOmon WMI Browser "File Performance Metrics" menu display includes the option to display selected summarized file I/O operation performance metrics for a particular file.  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 File to Table" button to add those particular files of interest that are to be included within the display table.

As shown in the screen shot above, the "C:\pagefile.sys" file has been added to the display table.  The "Idle Time Percent" metric has 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).  Note that metric values that have changed are highlighted in bold. 

"Top Ten Files" Performance Metrics

Top Ten Files Display

As shown in the screen shot above, the hIOmon WMI Browser "Top Ten Files" menu option display can be used to show the names of the current "Top Ten Files" 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 count of Read I/O operations 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 files (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 files (that is, the next ten files immediately below the top ten files), you can enter a starting number value of 11; this will result in files eleven (11) through twenty (20) being displayed within the table.  The starting number value enables you to display the other files 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"):

 

  • File name

  • File size

  • File fragment count

  • Associated file count for process/device

  • Maximum associated file cont for process/device

  • Read I/O operation total count

  • Write I/O operation total count

  • Control I/O operation total count

  • Read and write I/O operation total counts combined

  • Read, write, and control  I/O operation total counts combined

  • Fast Read I/O operation count (less than one millisecond)

  • Fast Write I/O operation count

  • Fast Read and Write I/O operation total counts combined

  • Fast Read I/O operation percentage

  • Fast Write I/O operation percentage

  • Overall Fast Read/Write total I/O operation percentage

  • Slower Read I/O operation count (one or more milliseconds)

  • Slower Write I/O operation count

  • Slower Read and Write I/O operation total counts combined

  • Slower Read I/O operation percentage

  • Slower Write I/O operation percentage

  • Overall Slower Read/Write total I/O operation percentage

  • Read File/PhyDev IOP Count

  • Write File/PhyDev IOP Count

  • Read and Write File/PhyDev IOP Counts combined

  • Read File/PhyDev Fast IOP Count

  • Write File/PhyDev Fast IOP Count

  • Read and Write File/PhyDev Fast IOP Counts combined

  • Read File/PhyDev Fast IOP percent

  • Write File/PhyDev Fast IOP percent

  • Read and Write File/PhyDev Fast IOP combined percentage

  • Read File/PhyDev Split IOP Count

  • Write File/PhyDev Split IOP Count

  • Read and Write File/PhyDev Split IOP Counts combined

  • Read File Split IOP Count

  • Write File Split IOP Count

  • Read and Write File Split IOP Counts combined

  • Read File Split IOP percentage

  • Write File Split IOP percentage

  • Read and Write File Split IOP combined percentage

  • Read File Max Split IOP Count

  • Write File Max Split IOP Count

  • Read and Write File Max Split IOP Counts combined

  • Read percentage of total Read and Write I/O operations

  • Read percentage of total File/PhyDev Read and Write I/O operations

  • Read I/O operations sequential access total count

  • Read I/O operations sequential access total percentage

  • Read File/PhyDev IOP sequential access count

  • Read File/PhyDev IOP sequential access percent

  • Write I/O operations sequential access total count

  • Write I/O operations sequential access total percentage

  • Write File/PhyDev IOP sequential access count

  • Write File/PhyDev IOP sequential access percent

  • Overall I/O operations sequential access total count

  • Overall I/O operations sequential access total percentage

  • Overall File/PhyDev sequential access total count

  • Overall File/PhyDev sequential access total percentage

  • Read I/O operations random access total count

  • Read I/O operations random access total percentage

  • Read File/PhyDev IOP random access count

  • Read File/PhyDev IOP random access percent

  • Write I/O operations random access total count

  • Write I/O operations random access total percentage

  • Write File/PhyDev IOP random access count

  • Write File/PhyDev IOP random access percent

  • Overall I/O operations random access total count

  • Overall I/O operations random access total percentage

  • Overall File/PhyDev random access total count

  • Overall File/PhyDev random access total percentage

  • Read SystemCache (system file cache) IOP count

  • Write SystemCache IOP count

  • Read and Write SystemCache IOP count combined

  • Read SystemCache Hit IOP count

  • Write SystemCache Hit IOP count

  • Read and Write SystemCache Hit IOP count combined

  • Read SystemCache Miss IOP count

  • Write SystemCache Miss IOP count

  • Read and Write SystemCache Miss IOP count combined

  • Read SystemCache Hit IOP percent

  • Write SystemCache Hit IOP percent

  • Read/Write SystemCache Hit IOP percent

  • Read SystemCache Miss IOP percent

  • Write SystemCache Miss IOP percent

  • Read/Write SystemCache Miss IOP percent

  • Random access Read SystemCache Hit IOP count

  • Sequential access Read SystemCache Hit IOP count

  • Random access Write SystemCache Hit IOP count

  • Sequential access Write SystemCache Hit IOP count

  • Overall Random access SystemCache Hit IOP count

  • Overall Sequential access SystemCache Hit IOP count

  • Random access Read SystemCache Miss IOP count

  • Sequential access Read SystemCache Miss IOP count

  • Random access Write SystemCache Miss IOP count

  • Sequential access Write SystemCache Miss IOP count

  • Overall Random access SystemCache Miss IOP count

  • Overall Sequential access SystemCache Miss IOP count

  • Read I/O operations per second (IOPS) average rate

  • Write I/O operations per second (IOPS) average rate

  • Control I/O operations per second (IOPS) average rate

  • Read and write I/O operations per second (IOPS) average rate

  • Total read, write and control I/O operations per second (IOPS) average rate

  • Read I/O operations per second (IOPS) maximum rate

  • Write I/O operations per second (IOPS) maximum rate

  • Control I/O operations per second (IOPS) maximum rate

  • Minimum, average, and maximum response time (separately) for read, write and control I/O operations (separately)

  • Minimum, average, and maximum response time (separately) for read and write File/PhyDev I/O operations (separately)

  • Maximum queue depth for read, write and control I/O operations (separately)

  • Maximum queue depth for read and write I/O operations combined

  • Total data transferred for read I/O operations

  • Total data transferred for write I/O operations

  • Total data transferred for read and write I/O operations (combined)

  • Total data transferred for read File/PhyDev I/O operations

  • Total data transferred for write File/PhyDev I/O operations

  • Total data transferred for read and write File/PhyDev I/O operations (combined)

  • Total data transferred for random access Read I/O operations 

  • Total data transferred for random access Read File/PhyDev I/O operations 

  • Total data transferred for sequential access Read I/O operations 

  • Total data transferred for sequential access Read File/PhyDev I/O operations 

  • Total data transferred for random access Write I/O operations 

  • Total data transferred for random access Write File/PhyDev I/O operations 

  • Total data transferred for sequential access Write I/O operations 

  • Total data transferred for sequential access Write File/PhyDev I/O operations 

  • Total data transferred for overall random access I/O operations  

  • Total data transferred for overall sequential access I/O operations 

  • Total data transferred for overall File/PhyDev random access I/O operations  

  • Total data transferred for overall File/PhyDev sequential access I/O operations 

  • Total data transferred for SystemCache Hit Read I/O operations 

  • Total data transferred for SystemCache Miss Read I/O operations 

  • Total data transferred for SystemCache Hit Write I/O operations 

  • Total data transferred for SystemCache Miss Write I/O operations 

  • Total data transferred for random access System Cache Hit Read I/O operations 

  • Total data transferred for sequential access System Cache Hit Read I/O operations 

  • Total data transferred for random access System Cache Hit Write I/O operations 

  • Total data transferred for sequential access System Cache Hit Write I/O operations 

  • Total data transferred for random access System Cache Miss Read I/O operations 

  • Total data transferred for sequential access System Cache Miss Read I/O operations 

  • Total data transferred for random access System Cache Miss Write I/O operations 

  • Total data transferred for sequential access System Cache Miss Write I/O operations 

  • Total data transferred for overall random access System Cache Hit I/O operations 

  • Total data transferred for overall sequential access System Cache Hit I/O operations 

  • Total data transferred for overall random access System Cache Miss I/O operations 

  • Total data transferred for overall sequential access System Cache Miss I/O operations 

  • Minimum data transfer size for read I/O operations

  • Minimum data transfer size for write I/O operations

  • Minimum data transfer size for read and write I/O operations (combined)

  • Maximum data transfer size for read I/O operations

  • Maximum data transfer size for write I/O operations

  • Maximum data transfer size for read and write I/O operations (combined)

  • Minimum data transfer size for read File/PhyDev I/O operations

  • Minimum data transfer size for write File/PhyDev I/O operations

  • Minimum data transfer size for read and write File/PhyDev I/O operations (combined)

  • Maximum data transfer size for read File/PhyDev I/O operations

  • Maximum data transfer size for write File/PhyDev I/O operations

  • Maximum data transfer size for read and write File/PhyDev I/O operations (combined)

  • Read I/O operation maximum megabytes-per-second (MB/s) data transfer rate

  • Write I/O operation maximum megabytes-per-second (MB/s) data transfer rate

  • Maximum megabytes-per-second (MB/s) data transfer rate for single Read I/O operation

  • Maximum megabytes-per-second (MB/s) data transfer rate for single Write I/O operation

  • Read I/O operation average megabytes-per-second (MB/s) data transfer rate

  • Write I/O operation average megabytes-per-second (MB/s) data transfer rate

  • Combined Read and Write  I/O operation average megabytes-per-second (MB/s) data transfer rate

  • Busy time

  • Busy time percentage

  • Idle time

  • Idle time percent

  • Control I/O operation Open/Create count

  • Statistics time duration

  • Time stamp of last read I/O operation completed

  • Time stamp of last write I/O operation completed

  • Time stamp of last control I/O operation completed

  • Time stamp of last read and last write I/O operation completed (combined)

  • Time stamp of last read,  last write and last control I/O operation completed (combined)

  • Process count and process count maximum (for file and device displays)
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