mo server

(disco.cloud)

804 points jryio | 1 comments | 21 Oct 25 20:28 UTC | HN request time: 0.207s | source

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speedgoose ◴[21 Oct 25 21:12 UTC] No.45661785[source]▶

Looking at the htop screenshot, I notice the lack of swap. You may want to enable earlyoom, so your whole server doesn't go down when a service goes bananas. The Linux Kernel OOM killer is often a bit too late to trigger.

You can also enable zram to compress ram, so you can over-provision like the pros'. A lot of long-running software leaks memory that compresses pretty well.

Here is how I do it on my Hetzner bare-metal servers using Ansible: https://gist.github.com/fungiboletus/794a265cc186e79cd5eb2fe... It also works on VMs.

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shrubble ◴[21 Oct 25 22:32 UTC] No.45662569[source]▶

>>45661785 #

It's always a good idea to have a tiny amount of swap just in case. Like 1GB.

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1. dd_xplore ◴[22 Oct 25 11:11 UTC] No.45667369[source]▶

>>45662569 #

I have also seen this in Androids (I tested this on multiple devices - S23U, OnePlus 6,8) , whenever I completely turned off the swap , the phone after a day or two of heavy usage would sometimes hang! It felt unintuitive since these devices had lot of RAM, and they shouldn't need swap . But turning off swap has always degraded performance for me.

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