| <!DOCTYPE html> | |
| <html lang="zh-CN"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <title>给孩子的物理世界 —— 一千页的通识物理书</title> | |
| <style> | |
| :root{ | |
| --ink:#1f2937; --sub:#6b7280; --line:#e5e7eb; | |
| --blue:#2563eb; --red:#dc2626; --green:#16a34a; --purple:#9333ea; --amber:#d97706; |
Notes from tuning a headless RTX 5090 on a Proxmox host running ollama in an LXC container. Includes a small NVML tool for applying clock offsets without an X server, and measured results showing where the gains actually are.
Short version: memory overclocking bought ~0.7%. Core offset bought ~3%. Undervolting by a specified millivolt figure is not possible on Linux/GeForce.
| #!/bin/sh | |
| # pcat2_pppoe_ipv6.sh — Enable IPv6 over a PPPoE WAN on Photonicat 2 (OpenWrt) | |
| # | |
| # Automates the manual steps from: | |
| # https://photonicat.com/wiki/Photoincat_2_IPv6_PPPoE | |
| # | |
| # What it does: | |
| # 1. WAN : network.wan.ipv6='auto' (request IPv6 address + delegated prefix | |
| # over the PPPoE session), disables the legacy wan6 interface | |
| # 2. LAN : network.lan.ip6assign='60', removes ip6class (the "ULA-only" trap) |
| #!/bin/bash | |
| # Configure UTF-8 locale for mosh server (run as root) | |
| set -e | |
| [[ $EUID -ne 0 ]] && echo "Please run as root" && exit 1 | |
| [[ -f /etc/os-release ]] && . /etc/os-release || { echo "Cannot detect OS"; exit 1; } | |
| echo "==> Configuring UTF-8 locale for mosh on $ID..." | |
| case "$ID" in |
| #!/bin/bash | |
| # ROS 2 Auto-Install Script for Ubuntu | |
| # Supports Ubuntu 22.04 (Humble) and 24.04 (Jazzy) | |
| # Check if running with bash | |
| if [ -z "$BASH_VERSION" ]; then | |
| echo "Error: This script must be run with bash" | |
| echo "Usage: bash autoinstall_ros2.sh" | |
| echo " or: ./autoinstall_ros2.sh" |
| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>FPS Test</title> | |
| <link href="https://fonts.googleapis.com/css2?family=Orbitron&display=swap" rel="stylesheet"> | |
| <style> | |
| body { | |
| margin: 0; | |
| overflow: hidden; |
| #!/usr/bin/env python3 | |
| import requests | |
| import time | |
| import sys | |
| from colorama import init, Fore, Style | |
| # Initialize colorama for Windows and auto-reset colors | |
| init(autoreset=True) | |
| # URL to "ping" (using HTTP, as requested) |
| import spidev | |
| import re | |
| import time | |
| from PIL import Image | |
| from periphery import GPIO | |
| from flask import Flask, request, redirect, url_for, render_template_string, flash | |
| from werkzeug.utils import secure_filename | |
| import threading | |
| import os | |
| import sys |
| #write a rtsp dummy dubug purpose server and log all the connection in sperate time format filenames, with /1 as path, listen 0.0.0.0:554, serves a yellow 720p screen. best do not install any addition apts and pips, able to quit program with control-c and runs on windows, log and print all raw socket response and request data | |
| import socket | |
| import threading | |
| import datetime | |
| import os | |
| import sys | |
| import time | |
| import random | |
| import struct | |
| import base64 |
| import re | |
| import sys | |
| import os | |
| import glob | |
| def srt_vtt_to_text(file_path): | |
| txt_file = os.path.splitext(file_path)[0] + '.txt' | |
| try: | |
| with open(file_path, 'r', encoding='utf-8') as file: |