You are not logged in.

#1 2019-10-04 09:40:34

Registered: 2015-03-24
Posts: 3

[Solved] Wrong question: Freeze on heavy disk activity

I started to notice freezes on my system when there is heavy disk activity, both on reading and writing. I have two internal disks, NVME, and a classic SSD.
`root` and `home` are on `NVME` and SSD is a storage one. I tested by creating a 3GB tar and `cat`ing it to `/dev/null` on both disks.
NVME is much slower and freezes the system, while SSD does not. I have a weekly trim but performed manual as well. No change.

    Drives:    Local Storage: total: 894.27 GiB used: 741.11 GiB (82.9%)
               ID-1: /dev/nvme0n1 vendor: Samsung model: MZVLV128HCGR-00000 size: 119.24 GiB speed: 31.6 Gb/s lanes: 4
               serial: <filter> rev: BXV7000Q scheme: GPT
               ID-2: /dev/sda vendor: Kingston model: SKC400S37512G size: 476.94 GiB speed: 6.0 Gb/s serial: <filter> rev: 00.Y
               scheme: MBR
    Partition: ID-1: / size: 30.39 GiB used: 23.91 GiB (78.7%) fs: ext4 dev: /dev/nvme0n1p2
               ID-2: /boot size: 1021.0 MiB used: 59.3 MiB (5.8%) fs: vfat dev: /dev/nvme0n1p1
               ID-3: /home size: 69.62 GiB used: 62.07 GiB (89.2%) fs: ext4 dev: /dev/nvme0n1p4
               ID-4: swap-1 size: 16.00 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/nvme0n1p3

NVME is about 3 years old.
Is NVME dying or is there some fix I can do?
Could it be because NVME has only 11% free space?

Let me know if I should provide more info.

All internal disks are on Ext4.
Also, I just noticed it also occurs when copying large stuff from external USB spin disk to SSD. That is bypassing NVME, so it seems it is not the NVME.

It turned out it is excessive swapping happening, even though there are 2/3 of mem available. When I turn the swap off, I can't reproduce it anymore.

Last edited by vlatkoB (2019-10-04 14:28:23)


Board footer

Powered by FluxBB