Selfhosted

40173 readers

651 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.
No spam posting.
Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.
Don't duplicate the full text of your blog or github here. Just post the link for folks to click.
Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).
No trolling.

Resources:

selfh.st Newsletter and index of selfhosted software and apps
awesome-selfhosted software
awesome-sysadmin resources
Self-Hosted Podcast from Jupiter Broadcasting

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 1 year ago

MODERATORS

[email protected]

Slow sab tips? (lemmy.world)

submitted 11 months ago by [email protected] to c/[email protected]

7 comments fedilink hide all child comments

I recently moved from a non docker ubuntu 18.04 setup to a full docker 22.04 setup. I used to get a pretty consistent 95-105 MB/s in sab. I can't seem to get more than 70 MB/s in my new setup. Both my usenet providers are setup the same and using 50 connections. I'd love to blame docker, but thought i see if anyone here has seen this as well. Any suggestions on what to look at?

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 3 points 11 months ago (2 children)

This could be the I/O overhead caused by docker while using NAT networking: https://stackoverflow.com/questions/21889053/what-is-the-runtime-performance-cost-of-a-docker-container#26149994

[–] [email protected] 1 points 11 months ago

The article your linked is citing a paper from 2014. Seems hard the believe the network stack hasn't been significantly reworked in 10 years. That being said I don't have anything to refute this.

Does the above still apply if using a glutun VPN docker with other containers connecting directly to glutun?

[–] [email protected] 1 points 11 months ago (1 children)

That's a large penalty, wow.

[–] [email protected] 2 points 11 months ago (1 children)

It's huge for networking. VPN gateway (for accessing the VPN WAN over LAN) on the host is 20-40% faster than dockerized...

[–] [email protected] 1 points 11 months ago

I'm using NAT for sure. All my containers are on a different subnet than the host.