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JonMagon / KDiskMark

A simple open-source disk benchmark tool for Linux distros
GNU General Public License v3.0
1.07k stars 43 forks source link

RND4KQ32T16 Bug #127

Closed Ace-Krypton closed 1 year ago

Ace-Krypton commented 1 year ago

Description:

So, there's this issue with the RND4KQ32T16 module. As the name suggests, it's supposed to handle 16 threads with a numjobs value of 16. This usually means it takes a while to do its thing when you test it with fio.

But here's the catch: when you use it in your application, it's finishing way too early and spitting out the wrong results. And it's not just that – even when you peek at the Disk Read/Write stats from IOTOP, you can see it's around 300, while your app is just managing around 190. Weird, right?

Steps To Reproduce:

https://github.com/JonMagon/KDiskMark/assets/75210504/b0c8fc57-87d7-49d4-86c5-eab781fe853b

JonMagon commented 1 year ago

KDIskMark aims to measure I/O against a filesystem. For random tests, the cost of operations is high. You can increase the time limit in the settings.

Ace-Krypton commented 1 year ago

I increased the time limit to 1 minute, still the same result