Hi folks, I migrated to Jetpack 5.1.2 where it has kernel 5.10.104 and the nvme writing performance is very bad compared with previous Jetpack 4 with kernel 4.9.253. It is specifically very slow when writing into nvme. JP4 Linux 4.9.253 # dd if=/dev/zero of=/media/nvme/output bs=8k count=10k 10240…

Hi, In our test only direct IO can achieve maximum performance. Buffer IO on both Jetpack 4 and 5 cannot achieve the maximum performance, although Jetpack 5(K5.10) has worse performance than Jetpack 4(K4.9). Would suggest use direct IO if you would like to achieve maximum throughput.

Bad Jetpack5 nvme writing performance compared with Jetpack4

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Xavier

DaneLLL November 1, 2023, 2:22am 4

Hi,
Please try the suggestion in:
New SSD , slow write rate - #8 by DaneLLL

You can enable O_DIRECT flag in the application.

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Slower NVMe throughput on Jetpack 5

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Bad Jetpack5 nvme writing performance compared with Jetpack4

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