#zram

70 messages · Page 1 of 1 (latest)

signal mural
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I remember doing by just following the arch wiki, I am pretty sure the arch wiki should have you covered

knotty ether
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i mean is it like just entering the commands in the terminal and thats all ?

modprobe zram

echo lz4 > /sys/block/zram0/comp_algorithm

echo 8G > /sys/block/zram0/disksize

mkswap --label zram0 /dev/zram0

swapon --priority 100 /dev/zram0

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@signal mural

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eh...can someone help me to set 8gb of zram guys ?

signal mural
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If you encounter a problem or a question ask

signal mural
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The section 5.3.1 specifically

knotty ether
signal mural
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Sure I will try

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I am outside right now, using my phone

knotty ether
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so first thing
sudo nano /etc/modules-load.d/zram.conf in terminal and enter this in it right ?
zram

signal mural
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Yes

knotty ether
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alr gimme sec

signal mural
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This will make it so that the zram module get automatically loaded when you turn on your computer

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It's the equivalent of doing modprobe zram everytime you turn on your computer

knotty ether
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then this ?
sudo nano /etc/modprobe.d/zram.conf
options zram num_devices=2
should this be 1 or 0 ? cause i just want 1 8gb of zram

signal mural
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How much ram do you have

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And how much of it do you want to use as zram

knotty ether
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i have 4gb of ram...and i wanna set 8gb of zram

signal mural
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Sorry that doesn't make sense

knotty ether
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??

signal mural
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If you have 4gb of ram you can for example use 2gb of it as zram and the other 2gb as normal ram

knotty ether
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i have a friend of mine did set 8gb of zram for me once...but i reinstalled so..

signal mural
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You or he misunderstood what's actually going on

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Free ram on software is a myth

knotty ether
signal mural
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That's probably swap not zram

knotty ether
knotty ether
signal mural
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Unless this is black magic, this shouldn't be possible, you can't pull an additional free 4gb from thin air

knotty ether
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uh well...lets set 2gb then as u said

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but is it going to be fast as the normal ram ?

signal mural
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Even zram is a trade off, it use your CPU for compression and decompression

knotty ether
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uhm and whats the diffrence between zram and zswap

signal mural
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It's right there in the arch wiki

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Zswap is already enabled by default

knotty ether
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which 1 do u recommend me to use in my case

signal mural
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Zswap (already enabled) just compresses the page of that ram that would otherwise be swapped to disk immediately

knotty ether
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so ig its better to disable zswap and set zram ? or am i wrong

signal mural
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They don't conflict, you can keep both

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It's up to you

knotty ether
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alright so in this case how much of zram should i set from my 4gb

signal mural
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But you will lose some performance because of the compression and decompression

knotty ether
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oh i thought if i set zram ill gain more performance

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ig nvm then

signal mural
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No you will gain "more ram"

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It cost some performance

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That's why the Linux kernel only use it when it's necessary

knotty ether
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oh...well thanks for helping...uhm can i ask some more things about arch if u dont mind ? cause im kinda new in it

signal mural
signal mural
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Or maybe you can start a new thread for every different question you have

knotty ether
knotty ether
signal mural
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That's a waste, having more people to answer is better, like in #tech-general

signal mural
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If you are just talking to people and being curious then use #tech-general

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Btw if you decide to not use zram then undo what you have just done

knotty ether
signal mural
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Yes or delete the file entirely

signal mural
knotty ether
signal mural
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This is basic

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rm path/to/file

knotty ether
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rm /etc/modules-load.d/zram.conf

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right ?

signal mural
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Yes, remember to use sudo