microsoft/diskspd

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DISKSPD is a storage load generator / performance test tool from the Windows/Windows Server and Cloud Server Infrastructure Engineering teams

Stars: 1.4k
Forks: 237
Open beginner issues: 0
Indexed issues: 49
Avg merge: 8m
Merged PRs (30d): 1

Dominant language: C++
License: MIT
Last GitHub push: Sep 4, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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49 open issues indexed

Measure-FleetCoreWorkLoad error: Start-FleetResultRun : Parameter set cannot be resolved using the specified named parameters. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/diskspd#229 · Opened Mar 13, 2026
Same test getting much worse result on Windows 2019 Server(DC) than on Windows 2025 Server(DC) Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/diskspd#226 · 4 comments · Opened Aug 20, 2025
Getting very inconsistent results between Vmware VM 2025 Datacenter Servers and 2019 Datacenter Servers Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/diskspd#224 · 3 comments · Opened Jul 15, 2025
Does diskspd create "real" sparse files? / Behaviour when using SMB Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/diskspd#223 · 2 comments · Opened May 25, 2025
VMFleet 2.x does not support WS2025 stretch clusters Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

microsoft/diskspd#219 · 2 comments · Opened Jan 17, 2025
Resuming Measure-FleetCoreWorkload After a Stoppage Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

microsoft/diskspd#217 · Opened Oct 8, 2024
New-VHD : Failed to create the virtual hard disk when running Measure-FleetCoreWorkload Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/diskspd#216 · Opened Oct 4, 2024
launch.ps1 does not get started automatically (on Server 2025?) Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/diskspd#214 · 6 comments · Opened Jul 26, 2024
Access Denied for Remote PSSessions on "localhost" Node Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/diskspd#213 · 3 comments · Opened Jul 26, 2024
winget package Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/diskspd#193 · 1 comment · 4 reactions · Opened Nov 18, 2022
FEATURE REQUEST: Change -W to a safer invocation letter or phrase Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/diskspd#192 · 2 comments · Opened Nov 10, 2022
Measure-FleetCoreWorkload - Import-Counter function Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/diskspd#191 · 7 comments · Opened Nov 10, 2022
Overwrites and multiple files Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/diskspd#184 · Opened Jul 19, 2022
Cannot convert value to type "System.Int32" Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

microsoft/diskspd#183 · Opened Jul 6, 2022
Support emitting both output formats Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/diskspd#182 · 1 comment · Opened Jun 16, 2022
Process-Diskspd.ps1 should be included in release downloads Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

microsoft/diskspd#181 · Opened Apr 22, 2022
Remove-Fleet saves VMs before removing Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

microsoft/diskspd#180 · Opened Apr 11, 2022
Azurestack HCI Stretched Cluster & VMFleet Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/diskspd#178 · 1 comment · Opened Jan 28, 2022
Remove-Fleet does not restore CSV cache value Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/diskspd#176 · 1 comment · Opened Dec 7, 2021
Feature request: New-Fleet -Cluster to process VHD on remote machine Open

Difficulty 5/5 Over a week Newbie friendliness 18/100

microsoft/diskspd#173 · 3 comments · Opened Nov 19, 2021
Install-Fleet -ClusterName XYZ Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

microsoft/diskspd#172 · Opened Nov 19, 2021
Options -Su -c will vastly change speed for non-Admin user when using -r Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/diskspd#148 · 4 comments · Opened Jul 12, 2021
[FEATURE REQUEST] .net (Core) based GUI Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/diskspd#143 · 1 reaction · Opened Nov 8, 2020
Add diskspd to Windows Package Manager Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

microsoft/diskspd#142 · Opened Oct 1, 2020
Higher than expected random write IOPS Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

microsoft/diskspd#129 · 9 comments · Opened Feb 11, 2020
To Run DiskSpd for a particular number of IOs instead of a particular duration. Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/diskspd#120 · 2 comments · Opened Sep 17, 2019
Small reads in IOCP don't put enough pressure on the disk, so results can be misleading. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/diskspd#118 · 2 comments · Opened Sep 9, 2019
Implement more robust latency information of thread groups. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/diskspd#117 · Opened Sep 3, 2019
Poor 8K block performance? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/diskspd#116 · 2 comments · Opened Aug 30, 2019
Create the output file directory if it doesn't exist. Open

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

microsoft/diskspd#115 · Opened Aug 22, 2019
Implement a more complete "driver" for the ResultParser(s) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/diskspd#114 · Opened Aug 22, 2019
Implement an option to allow DiskSpd to output higher precision results. Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/diskspd#113 · Opened Aug 21, 2019
Implement an option to allow DiskSpd to re-use existing files. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/diskspd#112 · Opened Aug 21, 2019
VirtualAlloc() in AllocateAndFillBufferForTarget() fails for large values of RequestCount and BlockSize Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/diskspd#110 · Opened Jun 18, 2019
Implement a mechanism to specify an output file for test results. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/diskspd#109 · Opened Jun 16, 2019
Implement Fixed Bucket Histograms Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/diskspd#108 · Opened Jun 16, 2019
Allow <ThreadTargets> to be specified without <TimeSpan>.<GetRequestCount> Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

microsoft/diskspd#107 · Opened Jun 16, 2019
Cleanup header files to eliminate min()/max() macro compilation issues. Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

microsoft/diskspd#105 · Opened Jun 15, 2019
Implement caching of the Histogram sorted map. Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

microsoft/diskspd#104 · Opened Jun 15, 2019
Allow size specifiers like KiB, MiB, GiB, etc in Xml Profiles. Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

microsoft/diskspd#102 · Opened Jun 14, 2019
Feature Request: show latency per I/O in verbose mode Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/diskspd#98 · 3 comments · Opened May 9, 2019
Examples in Readme Open

Difficulty 2/5 1-3 hours Newbie friendliness 30/100

microsoft/diskspd#86 · 2 comments · Opened Feb 11, 2019
Where are the Error Codes and Mitigations Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

microsoft/diskspd#84 · 2 comments · Opened Feb 5, 2019
VMFleet Troubleshooting aids available? Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/diskspd#77 · 3 comments · Opened Oct 26, 2018
How to create files with contents upto size mentioned? Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

microsoft/diskspd#51 · 5 comments · Opened Jan 3, 2018
fill_device option Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/diskspd#50 · Opened Dec 6, 2017
DISKSPD should validate that numeric parameters are of expected pattern Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/diskspd#10 · Opened Oct 22, 2015
SSD Preconditioning Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/diskspd#9 · Opened Aug 19, 2015
diskspd sequential should allow run spec in units of total file/target size Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/diskspd#4 · Opened Jun 11, 2015

microsoft/diskspd

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