Subject: Re: zram not zramfs for swap

Maurice Kinal wrote to andy5995 on 08/31/2026 02:35 <=-

Hej andy5995!

Using zramfs is new to me, I've been using it for about a month. I
have 14GB Ram.

New to me as well. Offhand it sounds like /dev/ramX which I used to
use before I became familiar with the kernel's tmpfs. Comparing tmpfs with nvme0n1p2 - which I currently have mounted on /dev/lfs;

Hello Maurice!

I unintentionally gave you incorrect info. zram not zram fs.

[andy@prometheus build-asan](master)$ zramctl
NAME ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT
/dev/zram0 zstd 8G 1.2G 373M 388.1M [SWAP]

zram is a Linux kernel module that allows you to set up compressed >filesystems in RAM.

zram-tools uses this module to set up compressed swap space. This is useful >on systems with low memory or servers running a large amount of services with >data that's easily swappable but that you may wish to swap back fast without >sacrificing disk bandwidth.

By default it allocates a maximum of 50% of memory, although it only uses >what it needs. You can configure this in /etc/default/zramswap.

--
-Andy Alt

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Hey andy5995!

I unintentionally gave you incorrect info. zram not zram fs.

Happens all the time. I am meaning to research it but have been a tad distracted with the latest build. I'll try and catch up soon.

Life is good,
Maurice

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