Hi guys, I’ve noted that no matter how much memory or processor I give Plex, it still slows down considerably with a large media collection. I’d like to see a concentration on using the resources I’m giving it. I have a large library of over 4000 movies, 20000 TV episodes and 40K+ musical tracks…

@sirebral I have moved your post here. At present, it makes more sense to diagnose what’s happening. From what you describe and based on the info already presented, The number of items in the DB The ZFS-based host The very first thing I will suggest is externally optimizing the DB and tuni…

Drop your music and I bet performance increases dramatically. Plex has never be great with large music libraries ime. I may have missed it, but what type of media is the plex app library on? SSD? HD? NAS?

It’s on an all-enterprise flash NVME array that pushes 3–4000 MBPS and over 300K IOPS on ZFS. The box itself is a 96-core system with a terabyte of RAM. It’s virtualized with KVM and is assigned 16 CPU’s and 16 gigabytes of RAM, of which almost nothing is used. I also have a 2 GTX 3090’s in there,…

Music is probably killing you. Also, I would not assign so many vCPUs to the box, if your VM is not busy, you are wasting more resources managing vcpus that you are gaining in functionality. The reason plex concentrates on “low-end” hardware is because for every one of a power user like yourself, th…

[image] sirebral: It seems to me that SQLite is the main culprit, as it’s not made for large datasets. I don’t think that SQLite is the problem. A database of 7 GB size (both files) is running fast as hell in a Docker Container (Linuxserver) on a Xeon class CPU (W1290P) with 128 GB RAM. OS is…

[image] sirebral: on ZFS. You might wanna adapt the block size of the DB file(s) to the block size of your ZFS. [image] Plex crashing multiple times per night, during peak usage Desktops & Laptops Do you delete it all the time? It’s supposed to accumulate informat…

I can do this, is there a standard blocksize for the DB, or is is something I should be altering. I know how to do the ZFS end, no so much on the DB.

Please refer to the linked thread.

Sorry, I didn’t see that. It’s definitely a database contention issue, I get errors all the time about slow database reads, yet the disk is screaming fast. I can copy about a second, so it’s not IO contention that I can see. What I’m really confused about is this. It’s doing quite a bit right no…

It is curious why is your load average reporting that high of numbers if you are idle CPU and no IOwait.

It was right at the end of a maintenance cycle, yet it still never got close to capping out the assigned CPU’s. I imported a lot of music as of late, so this may have something to do with it. It’s a bummer, as I really like Plexamp, yet if music is what’s dragging me down, I suppose I can use an a…

Increase use of available resources

Plex Media Server

OttoKerner May 4, 2024, 10:45am 6

You might wanna adapt the block size of the DB file(s) to the block size of your ZFS.

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Increase use of available resources

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