Artem Boldariev arbv

TCP tuning

The most important TCP tuning areas since kernel 4.9 are:

packet pacing
dynamic TSO sizing
TCP small queues
BBR TCP congestion algorithm

Definitions

Gb = gigabit

Build Notes

Environment

Use systemd-nspawn on Arch Linux with debootstrap:

sudo debootstrap --include=systemd-container --components=main,universe jammy ubuntu22.04-rk3568 http://archive.ubuntu.com/ubuntu/

Adapted to gist from https://unix.stackexchange.com/questions/344225/how-to-install-linux-on-the-playstation-2
Credits to Alison E.E.

Preambule

Looking to learn about game development? Are you a Linux enthusiast looking to test the claim that "Linux runs on everything"? Perhaps you are a software developer who is looking to release for multiple architectures, and you don't have another MIPS Little Endian machine on-hand for testing your programme. Whatever your situation there are a surprising number of reasons to install Linux on a Playstation 2, even sixteen years after it's release (boy do I feel old all of a sudden.), yet an equally surprising lack of documentation about it or how to install it.

Now don't get me wrong, if you want to use the original Sony Linux Kit, or one of it's updated open source releases on a fat PS2 with a network adapter and an IDE hard disk you can find plenty of info. However th

Gogs 0.13 (sqlite) to Gitea 1.0.2 (and upper)

Quoting the Gitea docs:

Upgrading from Gogs 0.12.x and above will be increasingly more difficult as the projects diverge further apart in configuration and schema.

Since gogs has now multiple unfixed RCEs and has for a while, it is imperative to either turn it off or migrate. The problem is, what to do if running a version > 0.11.x?

	# ~/.bashrc: executed by bash(1) for non-login shells.

	# If file exists (likely) copy fragment below into existing script:

	# If stdin is a terminal
	if [ -t 0 ]; then
	# Set GPG_TTY so gpg-agent knows where to prompt. See gpg-agent(1)
	export GPG_TTY="$(tty)"
	# Set PINENTRY_USER_DATA so pinentry-auto knows to present a text UI.
	export PINENTRY_USER_DATA=USE_TTY=1

	{
	config,
	lib,
	pkgs,
	...
	}:
	with lib;
	let
	cfg = config.services.docker-compose;
	settingsFormat = pkgs.formats.yaml {};

	{#---------------------------------------------------------------------
	custom_pub_chat_template_gemma4.jinja
	=====================================
	A public, harness-friendly fork of Google's Gemma 4 chat template,
	tuned for open-source agentic coding harnesses like:
	- anomalyco/opencode (https://github.com/anomalyco/opencode)
	- earendil-works/pi (https://github.com/earendil-works/pi)
	- openclaw, OpenHarness, similar Claude-Code-style harnesses

	WHY THIS FORK EXISTS

	In addition to a significant decrease in hepatic lipid accumulation in the IOE group, which inhibited energy intake by propionate enrichment, hepatic lipids were also significantly reduced in the mice in the IOP group, which was largely enriched with butyrate. Compared with the IOE group, IOP had a stronger regulatory effect on hepatic metabolism and triglyceride metabolism and higher levels of TCA cycle in the host. In addition, butyrate has the ability to promote browning of white adipose tissue (WAT) to brown adipose tissue (BAT).^[@ref39],[@ref40]^ WAT stores energy, whereas BAT uses energy for heating and consequently host energy expenditure increases.^[@ref41],[@ref42]^ However, adipose tissue weight does not change after WAT browning.^[@ref43]^ Therefore, the weight of adipose tissue of mice in the IOP group dominated by butyrate was greater than that of the mice in the IOE group dominated by propionate.

	In conclusion ([Figure [7](#fig7){ref-type="fig"}](#fig7){ref-type="fig"}C), the improvement of ob

	... answer said require line and column. So implement that. Need maybe not touch LSP output normalization in lspPositionToExternal/diagnostic snapshots.

	Implementation: modify positions.ts externalPositionToLsp to strict. Maybe rename? The function currently from service. It can return undefined if invalid. But error messages say "requires 1-based line and character". It should not floor floats. It should require Number.isInteger and >=1. For column, if not number returns undefined. Should we default column=1? The old allowed missing char. But "Require column >=1". So no default. This affects codeActions with missing char; okay. We'll update error messages maybe "line and column" not character. Since service methods named character param. But tool uses column alias. In hintForError accepts both. Could leave "character" for legacy? Could make "line and column". But service is generic LSP method; parameter called character. However user-facing contract says column. We could use "line and column" in errors for