Questions tagged [zram]
DRAM computer memory technology.
34
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ZRAM error at boot
I have configured ZRAM via /etc/udev/rules.d/99-zram.rules which looks like this:
KERNEL=="zram0",ATTR{comp_algorithm}="lz4hc",ATTR{disksize}="2048M",TAG+="systemd&...
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1
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How to disable zram at boot
How to disable zram at boot?
What I found was mostly to
swapoff -a
rmmod zram
but after reboot it came back
I found such question being asked at different places, e.g.,
https://forum.garudalinux.org/...
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1
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1
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Can I use zRAM and a disk swap file at the same time?
I have 24GB of available RAM in my machine, but I usually use far less than 8GB of it. However, sometimes I'm involved with large data files and I suddenly need 40GB, and on infrequent occasions, I'd ...
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Can I combine Zram with Zswap without double compression?
I currently have most of my swap on Zram, since I don't want to wear my SSD excessively.
BUT, I do have a swap partition left over from when the system was installed, and I just lowered the priority ...
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Ubuntu Studio 21.04 does not complete installation
Have downloaded ubuntustudio-21.04-dvd-amd64.iso
SHA265 checksum is ok.
Wrote .iso to USB stick (have tried three different types by now).
Booted Dell Latitude E7440 from it. Chose "install" ...
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1
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645
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Ubuntu 21.04 can't start any program which hasn't been started recently after (maybe) random time
My MacBook Air running Ubuntu 21.04 is now faster than the 20.04 LTS that I had before. I fixed the secure-boot shimx error, but now the laptop can't start programs which haven't been started recently....
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How do I replace zram swap with a swap file?
I am running a Jetson Nano with Jetpack 4.4 which (Ubuntu 18.04), by default, has 4x495 Meg ZRAM partitions for swap space. The problem is that for a data science project I need MORE RAM than the 4gig ...
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1
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Why is Ubuntu configuring multiple ZRAM devices for swap
I plan to use zram as a device for swap.
The init-zram-swapping script delivered with Ubuntu 18.04 LTS Bionic in package zram-config is creating one zram device for each CPU.
https://packages.ubuntu....
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1
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zram zstd support in 18.04
On ubuntu 18.04 I would like to use zram zstd compression but it is not available as it should be available in kernel 4.15.0-36-generic? As I understand it is a kernel compilation bug as described ...
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How do I prevent initramfs from resuming from a zram device?
Whenever initramfs is updated I get a message similar to this:
I: The initramfs will attempt to resume from /dev/zram1
I: (UUID=1d4b8573-7eee-43c9-a02a-10a65fc17b8a)
I: Set the RESUME variable to ...
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4
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1
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make zram use lz4 compression algorithm
Ubuntu 18, trying to make zram to use lz4 compression.
Tried modifying /usr/bin/init-zram-swapping file
#!/bin/sh
...........
...........
for i in $(seq ${NRDEVICES}); do
DEVNUMBER=$((i - 1))
...
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1
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Has zram been removed in the latest ubuntu (17.10)?
When running sudo modprobe zram (or modinfo for that matter) I get the following error:
modprobe: FATAL: Module zram not found in directory /lib/modules/4.13.0-21-generic
Has zram been removed from ...
- 153
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zRAM, increasing size - 16.04/Xenial
How to control zram seems to be quite confusing. I'd like to change my zram size from 8G to 10G, and maybe later to 12G (I have a total of 16G). I have gone into /etc/initramfs-tools/initramfs.conf ...
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Another question about Using ZRAM for swap
I am running 16.04 on a laptop with a 1 GB SSD with 20 GB ram. File system is btrfs and I didn't create swap. It has not caused me any problems for more than a year. However, I would like to try out ...
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Customisation of zram and enable zram disable swap partition [closed]
How do I enable zram and disable the swap partition?
How do I use zram instead of a swap partition to gain some speed and hard disk?
How do I configure zram to my needs?
Why do these things?
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How to change zram size?
I installed zram with sudo apt-get install zram-config. After that it started automatically and when I verified with cat /proc/swaps it's running properly
But when I used sudo echo 128M > /sys/...
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How do I enlarge zram? [duplicate]
If I have zram installed on Ubuntu and I want to enlarge it. By default, I only have a 935 megabytes and I need more zram! Does anyone know how I could get more zram? I would like to have at least 3 ...
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Crash battery power Ubuntu 12.04.5
My computer instantly turns off when trying to load ubuntu 12.04.5 on battery power. If I start with the ac plugged in then unplug the comp runs for hours, so the battery is fine. The crash happens ...
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1
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ZRAM vs. regular swap partition
I don't fully understand the functionality and the potential advantages of zram.
For example: once zram is activated, what percentage of memory will be dedicated to paging?
Another issue: obviously ...
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1
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Should i enable zram and/or lower swappiness value?
I use ubuntu 12.04 LTS. I have 2GB RAM. Now, that is split about 55-45 memory-swap. My CPU is almost flatlined!
Could I get faster leaner meaner more efficient performance if I lowered swappiness down ...
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Relation of swappines and zram
I have been interested in zram so I tried to test it. But as I continue to read the guide on what and how to install it, I have realized that it creates a file /dev/zram0 and mounts it as a swap, I ...
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How to install zram on Ubuntu 13.04?
I tried to install zRam using the following commands in the terminal:
sudo add-apt-repository ppa:shnatsel/zram
sudo apt-get update
sudo apt-get install zramswap-enabler
But it throws the following ...
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1
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ZRAM enabled but Swap in RAM not used
So I've just decided to enable zram on my 6 GB ram Ubuntu 12.04, using zram-config.
It takes about 2.9 GB of ram (after manually starting up the service, fixing this later...), but, even with ...
44
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7
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How do I use zRam?
I installed zRam as described on webupd8.org. I installed it from the terminal. Is that all I have to do or do I have to do some configuration or something? Does the zram-enabler do everything by ...
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Ubuntu 12.04 Faster boot, Hibernate & other questions
I've recently started exploring Ubuntu (my 1st distro).
I fresh installed precise without a swap (4GB ram).
The only issues are, slow boot (regardless of the swap) and instability after a few days ...
0
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1
answer
978
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Forcibly removing zramswap-enabler from my computer
zramswap-enabler has put my package manage in an "inconsistent state."
I tried forcibly removing it with this commend:
dpkg --remove --force-remove-reinstreq
But it seems to freeze and doesn't ...
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Cannot update system - stuck on zramswap-enabler
I'm having the same problem as mentioned here on two computers (one runs 12.04, while the other runs 11.10), but the solution provided does not work for me.
When I do update and upgrade through the ...
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Does using both tmpfs and zram make any sense?
I wondered if tmpfs and zram do negatively interfere with each other in any way?
After what I've read about it I'm unsure whether there is a positive cumulative effect accomplishable with that ...
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2
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4k
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Where did this zram swap come from?
I have a zram swap (and a normal one) and I got no idea where it came from:
$ sudo blkid | grep zram
/dev/zram0: UUID="..." TYPE="swap"
$ lsmod | grep zram
zram 18642 1
$ cat $ ...
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is it safe to remove zram swap enabler?
I have recently installed zram swap enabler, which initially seemed great as it made almost everything seem snappier than before, however over time the spike in CPU for compressing/decompressing ram ...
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2
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3k
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Cannot install zRam
I tried to install zRam using following commands in terminal -
sudo add-apt-repository ppa:shnatsel/zram
sudo apt-get update
sudo apt-get install zramswap-enabler
But it throws the following error ...
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Would zRam increase my computer's performance?
This article says you can have increased performance in Linux with zRam (virtual swap compressed in RAM).
I have 4 GB of RAM , 2.93 GHz (Dual Core) & I use virtualization a lot (VMWare). Would it ...
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How do I install zRam?
How can I install zRam on my Ubuntu 11.10 acer inspire netbook? Seems like it would be advantageous to use zRam. And would it work?
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How to permanently enable compressed ram swap? What version to use?
EDIT: In precise there's now zram-config. It's an upstart job compressing up to half of your ram spread over $(number of CPU cores) swap devices. It didn't allways start at boot but issuing sudo ...
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