write performance of NVMe PCIe 750 SSD 400G using fio under Linux

[jkwon2]

I want IOPS result using fio.

I read the

/message/313153# 313153 Anyone measured the performance of NVMe PCIe 750 SSD using fio under Linux?

so I edit fio parameter

fio write parameter 

[global]

name=fioTestNVME

filename=/dev/nvme0n1

ioengine=libaio

direct=1

bs=4k

randrepeat=0

rw=randwrite

iodepth=32

numjobs=4

norandommap

group_reporting

[write]

runtime=600

my using command is ' fio "parameter.fio" --output fsfio220w '

I expect result in https://www.intel.co.kr/content/www/kr/ko/products/memory-storage/solid-state-drives/gaming-enthusia... 인텔® SSD 750 시리즈(400GB, 1/2 높이 PCIe 3.0, 20nm, MLC)

'read' result is good but 'write' result fall short of one´s expectations

'write' result in file

what's the matter?

Is the parameter wrong?

please answer me this result's cause or right parameters

[idata]

Hi KJY,

We have some recommendations for you in the meantime:-Checking the information, it seems you are using an older Kernel and since there is no Intel driver for Linux, it is very important to have the latest https://www.kernel.org/ Kernel installed. -Can you test the SSD in the PCIe slot closest to the CPU?-Can we have your full motherboard's model?We'll be waiting for your response.Regards,Nestor C

[jkwon2]

Hello Nestor C

I do retest let you know after update our Kernel and install intel driver

motherboard's model : Supermicro Motherboard-X10DRi

[idata]

Hello KJY,

Thanks for letting us know.Just to clarify, there is no Intel driver for Linux, the driver is the inbox driver that comes with the operating system.We'll be waiting for your response.Regards,Nestor C

[jkwon2]

Hi, Nestor C

I am afraid we stop this Test by my boss.

Thank you for everything you've done for me.

Thanks

regards.

KJY

[idata]

Hi KJY,

We can just wait for you until you perform the tests.Just let us know over here so we can continue the support.Regards,Nestor C