Tmpfs Tools Profile Sync Daemon (PSD): Difference between revisions

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It is designed to work on desktop systems, but by creating custom fake profiles it could be used for non production servers :) Currently I'm using it to minimize [[Kali Linux Install Brave browser|Brave browser]] disk writings. More information about the PSD's Brave profile could be foun in the references section below.
It is designed to work on desktop systems, but by creating custom fake profiles it could be used for non production servers :) Currently I'm using it to minimize [[Kali Linux Install Brave browser|Brave browser]] disk writings. More information about the PSD's Brave profile could be foun in the references section below.


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== Preparation ==
== Preparation ==
{{collapse/div|#Preparation details}}
Identify which directories has high [[I/O Monitoring and Analyze|I/O rate]] by the following command.<syntaxhighlight lang="shell" line="1" class="force-prompt">
Identify which directories has high [[I/O Monitoring and Analyze|I/O rate]] by the following command.<syntaxhighlight lang="shell" line="1" class="force-prompt">
sudo watch -d -n 1 "find ~/.cache ~/.config -type f -size +80k -mmin -10 -printf '%-30s \t %t %p\n'"
sudo watch -d -n 1 "find ~/.cache ~/.config -type f -size +80k -mmin -10 -printf '%-30s \t %t %p\n'"
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iostat -h /dev/nvme0n1 -d 60 -t
iostat -h /dev/nvme0n1 -d 60 -t
</syntaxhighlight>
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== Install log2ram ==
== Install log2ram ==

Revision as of 14:43, 31 August 2022

Lin­ux Serv­er
Lin­ux Desk­top

Pro­file-sync-dae­mon (psd) is a tiny pseu­do-dae­mon de­signed to man­age your browser's pro­file in tmpfs and to pe­ri­od­i­cal­ly sync it back to your phys­i­cal disc (HDD/SSD). This is ac­com­plished via a sym­link­ing step and an in­no­v­a­tive use of rsync to main­tain back-up and syn­chro­niza­tion be­tween the two. One of the ma­jor de­sign goals of psd is a com­plete­ly trans­par­ent user ex­pe­ri­ence.

It is de­signed to work on desk­top sys­tems, but by cre­at­ing cus­tom fake pro­files it could be used for non pro­duc­tion servers :) Cur­rent­ly I'm us­ing it to min­i­mize Brave brows­er disk writ­ings. More in­for­ma­tion about the PSD's Brave pro­file could be foun in the ref­er­ences sec­tion be­low.

Prepa­ra­tion

#Prepa­ra­tion de­tails
Iden­ti­fy which di­rec­to­ries has high I/O rate by the fol­low­ing com­mand.
sudo watch -d -n 1 "find ~/.cache ~/.config -type f -size +80k -mmin -10 -printf '%-30s \t %t %p\n'"
Check the cur­rent size of the iden­ti­fied di­rec­to­ries.
du -hs ~/.cache ~/.config
Take a sta­tis­tic for the av­er­age disk write per minute be­fore the set­up.
iostat -h /dev/nvme0n1 -d 60 -t

In­stall log2ram

echo "deb [signed-by=/usr/share/keyrings/azlux-archive-keyring.gpg] http://packages.azlux.fr/debian/ bullseye main" | sudo tee /etc/apt/sources.list.d/azlux.list
sudo wget -O /usr/share/keyrings/azlux-archive-keyring.gpg  https://azlux.fr/repo.gpg
sudo apt update
sudo apt install log2ram

Set­up log2ram

sudo nano /etc/log2ram.conf

SIZE=2G
MAIL=true
PATH_DISK="/var/log"
ZL2R=false
COMP_ALG=lz4
LOG_DISK_SIZE=100M

Mod­i­fy the de­fault sys­temd timer unit, if you want to log more or less fre­quent­ly than one time per day.

sudo systemctl edit log2ram-daily.timer

Re­boot the sys­tem. Af­ter the re­boot check does it work­ing and use the io­stat com­mand to take a new sta­tis­tic.

Ref­er­ences


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