DiskSpdScript

This repository has scripts to use DiskSpd to do benchmark testing.

Scripts

diskspdtest.ps1

Runs DiskSpd benchmarks on one or more drives for a configurable number of iterations and saves the results as text files.

Parameters

Parameter	Type	Default	Description
-DiskspdPath	string	diskspd.exe	Path to the diskspd executable. Defaults to diskspd.exe (assumes it is on PATH).
-OutputDirectory	string	<script dir>\results	Directory where result files will be saved. Created automatically if it does not exist.
-Drives	string[]	@("C")	Array of drive letters to benchmark.
-Iterations	int	5	Number of benchmark iterations to run per drive.

Usage Examples

# Run with defaults (benchmarks C drive, saves results next to the script)
.\diskspdtest.ps1

# Specify a custom diskspd path and output directory
.\diskspdtest.ps1 -DiskspdPath "C:\tools\diskspd\amd64\diskspd.exe" -OutputDirectory "C:\temp\results"

# Benchmark multiple drives
.\diskspdtest.ps1 -Drives @("D", "E") -Iterations 3

# Full example
.\diskspdtest.ps1 -DiskspdPath "C:\diskspd\amd64\diskspd.exe" -OutputDirectory "C:\temp" -Drives @("P", "V") -Iterations 5

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LatencyParser.ps1

Parses DiskSpd output text files from a directory, extracts latency distribution tables, and exports a CSV with averaged percentile latencies.

Parameters

Parameter	Type	Default	Description
-Path	string	Script directory ($PSScriptRoot)	Directory containing the DiskSpd .txt output files to parse. The CSV output is also saved here.

Usage Examples

# Run with defaults (reads .txt files from the script's directory)
.\LatencyParser.ps1

# Specify a custom directory containing DiskSpd result files
.\LatencyParser.ps1 -Path "C:\temp\results"

# Use a relative path
.\LatencyParser.ps1 -Path ".\results"