AGX test SSD read and write speed is too low

PCIE4.0 X 4 read and write SSD speed is too low

use this web :New SSD , slow write rate - #12 by DaneLLL

fio test: result output same as nvme_read_write


Hi,
We would expect direct read/write can achieve target performance. Do you connect the NVMe SSD card to AGX Orin developer kit with Jetpack 5.1.3 and run the test? And which Jetpack version you are using?

We use Jeston’s Agx Orin core board, and we have made our own motherboard. Currently, the software version is Jetpack 35.4.1

Please help to review this issue again

Hi,
Please try the command and share the result for reference:

// Direct write
$ sudo su
# echo 3 > /proc/sys/vm/drop_caches
# fio --filename=/mnt/testfile2 --direct=1 --rw=write --bs=10m --iodepth=64 --size=60G --numjobs=1 --time_base=1 --group_reporting --name=test-seq-write --ioengine=sync
// Buffer write
$ sudo su
# echo 3 > /proc/sys/vm/drop_caches
# fio --filename=/mnt/testfile2 --direct=0 --rw=write --bs=10m --iodepth=64 --size=60G --numjobs=1 --time_base=1 --group_reporting --name=test-seq-write --ioengine=sync

On AGX Orin developer kit + Samsung 2TB NVMe SSD card, direct write is 3735MiB/s and buffer write is 1145MiB/s