On 7/4/23 11:25?PM, Nick dan wrote: > Hi > > I have a NVMe disk, SATA SSD and SATA HDD. > I have mkfs.ext4 on all the disks. And mounted the file system on /mnt. > I want the block size to be set as 128MB and file size 10GB > > What is the correct way to benchmark ? As it is taking a lot of time > and the values of Throughput are not correct. What should be taken > into consideration? Can you send the fio command? What are you trying to do, specifically? A block size of 128MB should of course work, but it's somewhat nonsensical as no applications would do that, and on the device side, it'd be chopped into much smaller pieces anyway. That means one fio read or write of 128MB would turn into potentially many hundreds of device requests. For any fio question or bug report, please include what you are seeing and what you would expect. Just saying "it's taking a lot of time and throughput is not correct" is not super useful, be more detailed and specific. And as also stated in the REPORTING-BUGS file, include what version you are running, the job file being used, etc. That would make for a complete bug report. -- Jens Axboe
