Testing your computer’s storage performance requires the right benchmarking tools. Standard test files often give inaccurate results because modern solid-state drives (SSDs) and controllers use compression to artificially boost transfer speeds. To find the true, unthrottled speed of your drive, you need to test it with data that cannot be compressed.
NonCompressibleFiles Portable is a lightweight, free utility designed specifically for this purpose. It creates random, non-compressible files on the fly, allowing you to run highly accurate stress tests on your hard drives, SSDs, and USB flash drives. Why Non-Compressible Files Matter for Benchmarking
Many modern storage controllers utilize built-in compression algorithms to maximize efficiency and speed. When you copy a standard file—like a text document or a basic system file—the drive compresses the data, making the transfer finish much faster.
While this compression is great for everyday use, it masks the hardware’s actual physical limitations during a benchmark. Non-compressible data, such as highly encrypted files or random byte strings, forces the drive controller to work without the aid of compression shortcuts. This gives you a realistic view of how your drive handles complex tasks like processing media files, running virtual machines, or moving encrypted data blocks. Key Benefits of NonCompressibleFiles Portable
No Installation Required: As a portable application, it runs instantly from any folder or USB drive without altering your system registry.
Massive File Generation: You can generate files ranging from a few kilobytes to multiple gigabytes instantly.
Custom Quantity Control: It allows you to create thousands of small files or a single massive file to simulate different types of system stress.
Resource Efficient: The program uses minimal system resources, ensuring that the file generation process itself does not skew your hardware performance data. How to Use the Program to Test Your PC Speed
Using NonCompressibleFiles Portable to evaluate your storage performance is a straightforward process.
Download and Launch: Download the portable ZIP file from a trusted source, extract it, and run the executable file (.exe) matching your system architecture (64-bit or 32-bit).
Set the Parameters: Choose the number of files you want to create and define the size per file. For a sustained write-speed test, generating a few large files (e.g., 5 GB to 10 GB each) is ideal.
Select the Target Drive: Target the specific drive you want to test by choosing a destination folder on that drive.
Generate the Files: Click the creation button. The program will rapidly write the non-compressible data to your drive.
To get your actual speed metrics, pair this utility with Windows Task Manager or a dedicated disk monitoring tool. By watching the active write-speed graph during the generation process, you will see the exact maximum transfer rate your drive can sustain under a worst-case data scenario. Analyzing Your Results
Once the test begins, observe the transfer speed. High-quality NVMe SSDs should maintain high, stable write speeds throughout the process.
If you notice a sharp drop in performance after a few seconds, you are likely witnessing the drive exhausting its high-speed SLC cache. This drop reveals the native speed of the drive’s underlying flash memory, which is a crucial metric for anyone handling large data transfers, video editing, or heavy gaming loads.
By stripping away the artificial inflation of data compression, NonCompressibleFiles Portable delivers a transparent look at your PC’s storage capabilities, helping you identify performance bottlenecks and ensure your hardware lives up to its advertising. To help you get the most accurate benchmark, tell me:
What type of drive are you testing (NVMe SSD, SATA SSD, or external HDD)?
Leave a Reply