GUI SSD Slow Mark

Check how slow your SSD is.

Why GUI SSD Slow Mark?

After discovering that conventional programs like CrystalDiskMark only measure the so-called SLC cache, which normally does not exceed 10 GB. I decided to use SSD SlowMark, and realized that I could create an interface for it and make it easier for everyone. So I created the GUI SSD Slow Mark, which is an unofficial version of SSD SlowMark.

Comparison

• Other tools:

• SSD SlowMark:

How to test?

1. Download the GUI SSD Slow Mark.
2. Now run GUI-SSD-Slow-Mark.

You can already use it, but here are some explanations:

Option	Description
File count	Count of generated files.
File size	Size of every file.
Block size	Minimum amount of reading and writing.
Dump folder	Folder where the files generated for the test are located. You can change the disk to be tested by changing to a valid path within it.
Results folder	Test results folder. It must be kept in the program directory.
Images	Configuration for generated images.
Test type	Indicates what type of test. For reading testing, files must be previously generated.

Note: File count × File size = Total size of all files.

List of terminal commands:

Command	Description
fc	Number of files.
fs	Size of files (MB).
bs	Block size (KB).
dump	Dump directory ("path").
res	Results folder ("path").
iw	Width of images (px).
ih	Height of images (px).
ip	Padding of images (px).
test	Write (w) / read (r) / write and read (wr).
log	Log GUI (true / false).

Exemple:

java -jar GUI-SSD-Slow-Mark.jar fc=40 fs=512

Note: fc × fs = Total size of all files.

What's in report?

In generated report you will find:

• Averaged summary, where most important things are:

  • Portion of data written at highest speed - This typically correspond to size of SLC cache available currently.

  Note: some drives may perform either constantly bad, this means it does not have SLC cache. Or constantly good, this means either it has quick memory like 3D XPoint or you did not yet rech end of SLC cache area which in same cases may take 20-30% of disk drive.

  • Max read speed - How quickly your programs start depends on that.

  • Most typical write speed - How quickly you can fill your disk depends on that.

  

• Detailed chart of read and write test:

  

• Raw metrics are collected into CSV files. You may use them to build aggregated data for multiple drives in Excel or similar tool.

User results

You can post your results and discuss them on the results page.

Problems & bugs

You can post your problems and bugs on the problems & bugs page. (Note: the program has been forked, so I don't have full knowledge to solve more complex problems, but I should try to fix any inconsistencies.)

Credits

This is all a fork of SSD SlowMark created by tools4free. I just made a interface.

SSD SlowMark website: https://tools4free.github.io/ssd-slow-mark