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non_burglar

@ non_burglar @lemmy.world

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0
Comments
781
Joined
3 yr. ago

  • Why is my home server using so much RAM for cache + buffer?

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  • when it clearly should not be doing it.

    No, sorry. We don't know enough to say this. What were the options when configuring ext4? What record size is grafana using? Mariadb or postgres? Is there contention with another db? Is there a mounted NFS path in the same ext4 partition with weird block settings? There are lots of legitimate config reasons for op's problem, but there are so many parts of op's setup we don't know, we similarly can't possibly know what the issue is.

    Swappiness works as intended in most default scheduler configurations and seeing high swap is a symptom, not an issue. It is almost always more productive to find out why the swapping is happening.

    Not sure what you're getting at with TRIM.

  • Why is my home server using so much RAM for cache + buffer?

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  • I agree that hitting swap is not ideal, but messing with swappiness sysctl is almost never the answer and very often leads to more problems than it solves.

    If you want to tune for workload without needing fairly deep understanding of how Linux manages memory, use a sysctl that sets a whole system behaviour like CPU governor presets.

    IMO, Linux is configured for “old” systems by default: slow HDDs, and constrained RAM pools, where disk IO really, really needs caching, and where idle background processes take a large fraction of RAM.

    Not really a matter of opinion, and not true since kernel 5.1 when ssds became first class citizens.

  • Putting a Bunny.net CDN in Front of The Static Blog

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  • Ooof, that domain name, tho...

  • Nvidia AI Chip Found in New Russian Missile, Ukraine Says

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  • The 8 "cores" were co-processors, so not really cores the way we think about them now.

    The architecture is unconventional because the bus design to move data between the these and the gpu is very fast, but had a weird pipeline to determine how to route that data.

    Apparently it's a very difficult thing to reproduce in a virtual environment.

  • PBS broadcaster loses access to 50TB of data comprising 70 years of TV history after contracted cloud storage vendor goes defunct

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  • You misspelled ignominious in your username.

  • Nvidia AI Chip Found in New Russian Missile, Ukraine Says

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  • True fact!

    As a side note, I've been learning about how weird the ps3 cell architecture is, and why it's so hard to emulate.

  • Nvidia AI Chip Found in New Russian Missile, Ukraine Says

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  • PBS broadcaster loses access to 50TB of data comprising 70 years of TV history after contracted cloud storage vendor goes defunct

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  • PBS broadcaster loses access to 50TB of data comprising 70 years of TV history after contracted cloud storage vendor goes defunct

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  • PBS broadcaster loses access to 50TB of data comprising 70 years of TV history after contracted cloud storage vendor goes defunct

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  • Removed

    I measured the idle RAM of 19 self-hosted apps on identical hardware so you can size a VPS without guessing

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  • So, couple things here:

    1. Most VPS have elastic memory, meaning they can borrow burst ram from the host for short periods. This means you 1GB vps can probably run at 1.5GB or even two during some demanding jobs for a short time. And depends on the provider.
    2. You don't document how you installed any of these.
    3. .net core doesn't work that way, it's not "running" underneath the arr stack. There is some init stuff that happens when you first start a .net app, setting up DLLs, paths in /opt and such, but there isn't a resident "layer" involved.
    4. My arr stack executables never, ever exceed 700MB, 2GB is more than enough and pretty conservative. I've watched these metrics since the days when radarr and sonarr were backed by mono. You do need some mem space to store temporary show/movie metadata, but it's trivial.
    5. As others have said, peak demand is what you want to know, not base requirement.

    Generally, I like where you're taking this, but I think some more experience with how processes and memory work will help you a lot.

  • SEC bought access to over a billion airline records to track travelers, no warrant required

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  • Uh, the FTC and the SEC aren't the same thing.

  • We tested the impact of SSD speed on gaming performance in 11 titles & we analyzed from SATA to PCIe 5.0 to see whether upgrading to a faster NVMe SSD would have an impact

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  • Yes, exactly. Testing storage with game frame rate betrays a pretty fundamental misunderstanding of how modern video games work.

  • OPNsense on top of Proxmox - Part 2

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  • Opnsense is based on FreeBSD, not openbsd. They are different in handling jails, driver and fs support, so it does matter if you're looking for info.

  • Cory Doctorow: The people who tell you ‘AI is changing everything’ are lying

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  • I'm not really sure what you're getting at. The blockchain is a good mechanism to maintain a source of truth that is inspectable and verifiable by anyone. It would only serve to certify that official counts can't be tampered with in certain ways.

    But it doesn't replace the whole democratic voting process. It doesn't protect against coercive voting, for instance.

    My point originally was that blockchain can be of use to us, but tech bros ruined its rep. Same with AI. I've been waiting for routers with ai-powered (really, just machine learning) firewalls that can adapt rules to environments. But instead of that, everyone is obsessed with generative stuff that isnt very good.

  • Self-Host Weekly (7 August 2026)

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  • I appreciate your candor, but do you understand why the backlash happens?

  • Cory Doctorow: The people who tell you ‘AI is changing everything’ are lying

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  • Proposed ideas for block chain to maintain election integrity would only use a block chain ledger to verify counts, not store voter information.

  • Thousands of servers can be backdoored by exploiting buggy motherboard controllers

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  • If the power is off, the BMC is still active. That's the advantage.

  • Thousands of servers can be backdoored by exploiting buggy motherboard controllers

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  • Brother..... IPMI is a dumpster fire of security, it should be on its own mgmt network alone.

    I use IPMI as a demo of how to use tcpdump and jack the ripper to compromise an ipmi login. It's trivial.