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The new separate "hIOmon Disk I/O Ranger" software package is now generally available. A trial version can be downloaded at the hyperI/O web site:
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Hi Ao1,
I am not currently aware of any publicly-available I/O operation traces that reflect the use of the SNIA Solid State Storage (SSS) Performance Test Specification (PTS) Client 1.0 Version.

As a hack, you can manually edit each of the .xml export files. At the start of the export file, simply change the "<TESTNAME>INASPTExportFile</TESTNAME>" to "<TESTNAME>Duke Nukem Demo</TESTNAME>"...

I looked into this and found a couple of issues:

1) I downloaded the hIOmon "Duke Nukem Demo.xml" export file that Ao1 has posted. I then ran the Intel NASPT Exerciser (1.7.1); it complained that...

Quite welcome and happy to be of some help, but special thanks to Ao1 for doing the actual verification.

For me, one of the more difficult challenges was finding how to shutdown the "Windows...

The hIOmon "File I/O Log" files are located by default within the "...\hyperIO\hIOmon\Support\hIOmonGr\FileIOlogs" directory where you installed the hIOmon software. These are files that the hIOmon...

E-mail the hIOmon Product ID number (which was generated when you installed the hIOmon software) to hyperI/O; they will then send you back a corresponding "hIOmon Feature Key" that you can activate...

Ao1 caught me this time. :)

He is correct, the statistics that have been collected within the hIOmon I/O Monitor are reset when the/a Filter Selection is loaded/activated.

I believe that Ao1 often uses the "hIOmon Automated Monitoring Configuration Setup" script to configure the hIOmon software. You can access this script by using the following shortcut:
...

Good questions. I do not know; I did not see an answer within the Intel documentation for the NASPT tools. I suppose that one could look at the source code for the NASPT Exerciser since it is...

A hIOmon export file that contains the I/O operation trace data which has been exported within the .xml format required by the Intel NAS Performance Toolkit (NASPT) tools does not contain any of the...

Hi Ao1. Thanks for the confirmation about the sleeps.

Power state management and transitions within the Windows OS involve a number of complexities and idiosyncrasies - and a rather long...

I suspect that there is a common factor behind the reads/writes with the "long" >500ms response times (as johnw pointed out above), but before I say more I have a question for Ao1:

Were there any...

I would certainly agree that "response time (latency)" is an important factor in I/O performance considerations/analysis.

And the three metrics alone (IOPS, MB/s, and QD) provided by the hIOmon...

Hi johnw,

You raise a good point - and Ao1 pretty much hit the nail on the head in his post #6 above. :up:

hIOmon has long been able to collect, display, and export a set of summary metrics...

Thanks to all above for the positive response to the upcoming new hIOmon "Performance Threshold Range Metrics".

And special thanks to Ao1 who passed along some great suggestions for further...

FYI, the values shows in Ao1's hIOmon WMI Browser screenshots above for the "Control_MDSA_Trim_DSR_Length_Total_IOP_Min" and the "Control_MDSA_Trim_DSR_Length_Total_IOP_Max" metrics are...

That's a good question. :)

Unfortunately I do not know what particular algorithm(s) the filesystem would use under such circumstances. I could speculate, but I am loathe to do so - and least...

hIOmon can collect I/O operation metrics that are automatically summarized as well as an I/O operation trace. Both of these options can be used separately (with no dependence upon each other) or...

Ao1 is correct regarding the "ResponseTime_Max_Control" shown within the hIOmon WMI Browser reflecting the maximum response time observed by hIOmon for a "TRIM" command (technically, a "Device...

Thanks for the explanation!

Looks like the file I/O operation activity as described basically coincides with the random/sequential metrics observed by hIOmon further down at the "physical disk"...

Hi Anvil,

A couple of quick questions:


How many separate files are being written to concurrently within a loop?

For each separate file, is the entire file being written by a single write...

The IDF 2011 presentation (SSDS002) that Ao1 mentioned in his post #115 is interesting. Thanks Ao1! :)

I haven't had the chance to look over the presentation carefully, but a number of questions...

Sorry for the confusion.

The hIOmon thread post #283 briefly discusses only write I/O operations.

The subsequent hIOmon thread post #285 briefly mentions only read I/O operations and notes that...

Hi johnw,

The short answer to both of your questions is "Yes".

Along these lines, please see the hIOmon thread post #297 where I used the hIOmon "I/O Operation Trace" feature along with the...