Incorrect real speed of SSD is shown

[ukushu]

Need to add ability to make tests with different size of memory. -- Up to ALL free space of the disk.

Because of you do test with a low memory size, your test doesn't show REAL speed of SSD. It's can show speed "500" in case of real speed is 60 when SSD cash will be filled.

To check what I mean - try to write file on any cheap or middle-price SSD with size larger than 20-30-40-50GB(any Blue-ray movie) or fill SSD with any real data. Or test SSD speed with Victoria or PC-3000 Disk Analyzer with filling random data.

Lot of people need to know REAL speed of SSD -- not speed of work with cache. As example - some people who works with video-edit. As example - work with some databases. Etc.

[Alois-xx]

I concur with ukushu. I have also learned the hard way that the data sheet SSD speed and the "measured" values of industry standard benchmark tools are showing wrong numbers if sustained write rate of SSDs are important. These values are much much lower than the advertised values are can easily be a factor 10 off. I have created my one benchmark tool (FileStress) which is a command line utility which can fill up your SSD or write as long as you want to new files. This also takes into account OS File System issues which can e.g. hit you when you store many files in a single directory which is also something to be aware of. When I find time I will upload it to GitHub