DiskSpd explained

DiskSpd is a free and open-source^[2] command-line tool for storage benchmarking on Microsoft Windows that generates a variety of requests against computer files, partitions or storage devices and presents collected statistics as text in the command-line interface or as an XML file.^{[3] [4] [1]}

Overview

The command supports physical and virtual storage including hard disk drive (HDD), solid state devices (SSD), and solid state hybrid drives (SSHD).^[5] It provides control over the testing methods, duration, threads, queues, IO and processor affinity, and reporting.^[6]

In 2024, the command was updated to handle modern workloads and hardware like NVMe.^[7]

DiskSpd works on desktop versions of Windows 7, Windows 8, Windows 8.1, Windows 10, as well as Windows Server 2012, Windows 2012 R2, and Windows Server 2016.^[8]

It is licensed under MIT License and the source code is available on GitHub.^[9]

Example

Benchmark two drives (C: and E:) using a 100 MB test file, and run the test for a duration of 60 seconds (the default is 10).^[10]

C:\>diskspd -c100M -d60 c: e:

See also

• Iometer
• ProcDump

External links

• TechNet DiskSpd: A Robust Storage Performance Tool
  • Using Microsoft DiskSpd to Test Your Storage Subsystem

Notes and References

1. Web site: microsoft/diskspd. GitHub.
2. Web site: Microsoft DISKSPD now on GitHub, and the mysterious VMFLEET released.
3. Web site: Benchmark your hard drives with Microsoft's open-source Diskspd. March 8, 2016. BetaNews.
4. Web site: Microsoft DiskSpd Storage Performance Tool - gHacks Tech News. www.ghacks.net.
5. Web site: Server and Storage I/O Benchmark Tools: Microsoft Diskspd (Part I) - DZone Performance. dzone.com.
6. https://www.techworld.com/download/system-desktop-tools/diskspd-2017-3330671/ Diskspd 2.0.17 | Software Downloads | Techworld
7. Web site: Windows Server 2025 Storage Performance with Diskspd. Dan. Cuomo. techcommunity.microsoft.com.
8. Web site: How to Stress Test the Hard Drives in Your PC or Server. Chris. Hoffman. How-To Geek.
9. Web site: microsoft/diskspd. November 7, 2020. GitHub.
10. Web site: Using diskspd.exe to test storage system. January 11, 2018. Medium.