Slab memory leak

[924908681]

After upgrading the system from 18.04 to 20.04, there was a significant usage of Slab memory. Currently, the nx system is 35.3.1.

The following instructions are currently being executed:
1.sysnc
2.sudo sysctl -w vm.drop_caches=3
3.sync && echo 3 | sudo tee /proc/sys/vm/drop_caches.
4.sudo bash -c “echo 3 > /proc/sys/vm/drop_caches”
They all don’t work，slab occupancy is still very high。
When I executed slabtop, kmalloc-256 ranked first.

[Robert_Crovella]

This is not a CUDA programming issue. You are posting in the wrong forum. If you are running on a Jetson device, you can post in a relevant Jetson forum.

[DaneLLL]

Hi,
We would suggest use latest Jetpack 5.1.2. Would be great if you can upgrade.

And if you are looking for a low-light system, you may try this rootfs:
Root File System — Jetson Linux Developer Guide documentation

[924908681]

I test found Xavier NX(8G),why the latest system memory is just 6.8GB?thank you

[DaneLLL]

Hi,
Please refer to explanation in
XavierNX just has 6848.4MB memory - #8 by DaneLLL