cross-posted from: https://swg-empire.de/post/4511580

In my relentless pursuit of trying to coax more performance out of my Lemmy instance I read that PostgreSQL heavily relies on the OSs disk cache for read performance. I've got 16 GB of RAM and two hdds in RAID 1. I've PostgreSQL configured to use 12 GB of RAM and I've zram swap set up with 8 GB.

But according to htop PostgreSQL ia using only about 4 GB. My swap gets hardly touched. And read performance is awful. Opening my profile regularly times out. Only when it's worked ones does it load quickly until I don't touch it again for half an hour or so.

Now, my theory is that the zram actually takes available RAM away from the disk cache, thus slowing the whole system down. My googling couldn't bring me the answer because it only showed me how to set up zram in the first place.

Does anyone know if my theory is correct?

In my relentless pursuit of trying to coax more performance out of my Lemmy instance I read that PostgreSQL heavily relies on the OSs disk cache for read performance. I've got 16 GB of RAM and two hdds in RAID 1. I've PostgreSQL configured to use 12 GB of RAM and I've zram swap set up with 8 GB.

But according to htop PostgreSQL is using only about 4 GB. My swap gets hardly touched. And read performance is awful. Opening my profile regularly times out. Only when it's worked once does it load quickly until I don't touch it again for half an hour or so.

Now, my theory is that the zram actually takes available RAM away from the disk cache, thus slowing the whole system down. My googling couldn't bring me the answer because it only showed me how to set up zram in the first place.

Does anyone know if my theory is correct?

Eben noch in nem anderen Thread die Frage gelesen was denn wäre wenn am Warntag wirklich was passiert.

Die Sirene war aber so kurz, dass ich vermute dass das nur ein Fehler war.

Bro, are you even relax maxing bro? Are you achieving nirvana on your 15-minute break, bro? You gotta start microdosing rest every time you blink, bro. You gotta do it, bro; you gotta achieve the most relaxation you can otherwise you’re just waisting time, bro. You gotta take it slow as fast as you can, bro!

cross-posted from: https://lemmit.online/post/6732711

This is an automated archive made by the Lemmit Bot.

The original was posted on /r/cfs by /u/Senior_Line_4260 on 2025-09-03 18:16:06+00:00.

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New study from the Charité involving Prof. Scheibenbogen and others.

Hand Strength measurements were used to determine muscle strength.

Median Strength increase was 2,6kg (5,7lbs) on 30mg of medication.

The median heartrate increase in lying to standing was also decreased from 17 to 13bpm

As admin of my instance I get the option of banning users from communities, in the context menu of posts. But usually I want to ban them from the whole server.

I do get the option to issue a sitewide ban when I handle reports.

Can I get the admin options in the post's context menu and on a user's page as well?

Why would a nihilistic cartoon lie to me?

Schmeckt als wäre es schon gegessen worden.

Stay safe rule, my brothers, sisters and anything outside and in between.

No idea where else I could post this with maximum visibility.