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| DiskSpd | ||
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| DISKSPD is a storage load generator / performance test tool from the Microsoft Windows, Windows Server and Cloud Server Infrastructure Engineering teams. Please see the included documentation (docx and pdf formats). | ||
| DiskSpd is a storage performance tool from the Windows, Windows Server and Cloud Server Infrastructure engineering teams at Microsoft. Please visit <https://github.com/Microsoft/diskspd/wiki> for updated documentation. The latest update to DiskSpd can be downloaded from <https://aka.ms/diskspd>. | ||
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| In addition to the tool itself, this repository hosts measurement frameworks which utilize DiskSpd. The initial example is [VM Fleet](https://github.com/Microsoft/diskspd/blob/master/Frameworks/VMFleet) that was used for the Windows Server 2016 Hyper-Converged Storage Spaces Direct work. | ||
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| This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/). For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [[email protected]](mailto:[email protected]) with any additional questions or comments. | ||
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| What's New? | ||
| =========== | ||
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| In addition DISKSPD itself, this repo hosts measurement frameworks which use DISKSPD. The initial example is the ***VM Fleet*** being used for Windows Server 2016 Hyper-Converged Storage Spaces Direct work. Look for these under the *Frameworks* directory. | ||
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| ## DISKSPD ## | ||
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| DISKSPD 2.0.20a 2/28/2018 | ||
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| * Changes that may require rebaselining of results: | ||
| * New random number generator that may show an observable decreased cost | ||
| * Switched to 512-byte aligned buffers with the -Z option to increase performance | ||
| * New -O option for specifying the number of outstanding IO requests per thread | ||
| * New -Zr option for per-IO randomization of write buffer content | ||
| * Switched to 512-byte aligned buffers with the `-Z` option to increase performance | ||
| * New `-O` option for specifying the number of outstanding IO requests per thread | ||
| * New `-Zr` option for per-IO randomization of write buffer content | ||
| * XML: Adds a new `<ThreadTarget>` element to support target weighting schemes | ||
| * Enhanced statistics captured from IOPS data | ||
| * Added support for validating XML profiles using an in-built XSD | ||
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@@ -29,14 +30,14 @@ DISKSPD 2.0.20a 2/28/2018 | |
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| DISKSPD 2.0.18a 5/31/2016 | ||
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| * update /? example to use -Sh v. deprecated -h | ||
| * update `/?` example to use `-Sh` v. deprecated `-h` | ||
| * fix operation on volumes on GPT partitioned media (<driveletter>:) | ||
| * fix IO priority hint to proper stack alignment (if not 8 byte, will fail) | ||
| * use iB notation to clarify that text result output is in 2^n units (KiB/MiB/GiB) | ||
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| DISKSPD 2.0.17 5/01/2016 | ||
| DISKSPD 2.0.17a 5/01/2016 | ||
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| * -S is expanded to control write-through independent of OS/software cache. Among other things, this allows buffered write-through to be specified (-Sbw). | ||
| * `-S` is expanded to control write-through independent of OS/software cache. Among other things, this allows buffered write-through to be specified (`-Sbw`). | ||
| * XML: adds a new `<WriteThrough>` element to specify write-through | ||
| * XML: `<DisableAllCache>` is no longer emitted (still parsed, though), in favor or `<WriteThrough>` and `<DisableOSCache>` | ||
| * Text output: OS/software cache and write-through state are now documented separately (adjacent lines) | ||
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@@ -89,15 +90,13 @@ VM Fleet 0.6 7/18/2016 | |
| * watch-cluster handles downed/recovered nodes gracefully | ||
| * update-csv now handles node names which are logical prefixes of another (node1, node10) | ||
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| Compiling / Source | ||
| ========= | ||
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| Compilation is supported with Visual Studio and Visual Studio Express. Use the Visual Studio solution file inside the diskspd_vs directory. | ||
| Source Code | ||
| =========== | ||
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| Source code is hosted at the following repo, if you did not clone it directly: | ||
| The source code for DiskSpd is hosted on GitHub at: | ||
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| [https://github.com/microsoft/diskspd](https://github.com/microsoft/diskspd "https://github.com/microsoft/diskspd") | ||
| <https://github.com/Microsoft/diskspd> | ||
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| A binary release is hosted by Microsoft at the following location: | ||
| Any issues with DiskSpd can be reported using the following link: | ||
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| [http://aka.ms/diskspd](http://aka.ms/diskspd "http://aka.ms/diskspd") | ||
| <https://github.com/Microsoft/diskspd/issues> | ||