Hi, Can you paste `free -h` output for this hosts? k Sent from my iPhone
On 24 Jul 2023, at 14:42, Luis Domingues <luis.domingues@proton.ch> wrote:
Hi,
So after, looking into OSDs memory usage, which seem to be fine, on a v16.2.13 running with cephadm, on el8, it seems that the kernel is using a lot of memory.
# smem -t -w -k Area Used Cache Noncache firmware/hardware 0 0 0 kernel image 0 0 0 kernel dynamic memory 65.0G 18.6G 46.4G userspace memory 50.1G 260.5M 49.9G free memory 9.9G 9.9G 0 ---------------------------------------------------------- 125.0G 28.8G 96.3G
Comparing with a similar other cluster, same OS, same ceph version, but running packages instead if containers, and machines have a little bit more memory:
# smem -t -w -k Area Used Cache Noncache firmware/hardware 0 0 0 kernel image 0 0 0 kernel dynamic memory 52.8G 50.5G 2.4G userspace memory 123.9G 198.5M 123.7G free memory 10.6G 10.6G 0 ---------------------------------------------------------- 187.3G 61.3G 126.0G
Does anyone have an idea why when using containers with podman the kernel needs a lot more memory?
Luis Domingues Proton AG _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io