teknoraver

#!/bin/sh
# Benchmark tar --reflink extraction against a regular one.
#
# usage: bench.sh <workdir-on-target-fs> <archive>...
#
# Each archive is extracted RUNS times (default 3) in both modes, at
# cold cache when possible, timing tar plus the sync of the extracted
# data; the best run is reported.  Contents and extent sharing are
# verified once per archive.
#

teknoraver

/* clone_bench - measure the per-file cost of FICLONERANGE on many
   small files, compared to a plain copy.

   Creates NFILES files of SIZE bytes each, in the current directory,
   from a common source file, in one of three ways:

     write        plain write(2) of the whole content
     clone-trunc  FICLONERANGE of size rounded up to 4k, then
                  ftruncate to the real size (what a program cloning
                  a non-block-aligned range out of a larger file,

teknoraver

#!/usr/bin/env python3
"""Convert SVG files to a single multi-page PDF using headless Chrome."""

import glob
import os
import re
import subprocess
import sys
import tempfile

teknoraver

/*
 * Copyright (C) 2026 Matteo Croce <matteo@teknoraver.net>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of

teknoraver

#!/bin/sh

mkdir -p sign/preload

git clone -b eic7x-dt-fix-megrez https://github.com/ganboing/u-boot-eic7x.git u-boot
cd u-boot
make eic7700_milkv_megrez_defconfig
make -j4
cd -

teknoraver

#!/bin/sh
#
# Find the maximum I/O size for a single read/write syscall
# Uses binary search after detecting the approximate limit by doubling
#
# Works on Linux, BSD, and other POSIX systems

set -eu

# Start with 1 MB

teknoraver

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>

void allocate_memory(size_t gb)
{
	size_t bytes = gb * 1024 * 1024 * 1024ULL;
	size_t pgsize = sysconf(_SC_PAGESIZE);
	unsigned char *ptr = malloc(bytes);

teknoraver

use std::env;
use std::fs;
use std::io::{self, Read, Write};
use std::os::unix::fs::PermissionsExt;
use std::os::unix::net::{UnixListener, UnixStream};
use std::path::Path;
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;
use std::thread;

teknoraver

package main

import (
	"fmt"
	"io"
	"net"
	"os"
	"os/signal"
	"sync"
	"syscall"

teknoraver

#!/usr/bin/env python3
import subprocess
import sys

cmds = [
	"BPFMapCreate", "BPFMapLookupElem", "BPFMapUpdateElem", "BPFMapDeleteElem",
	"BPFMapGetNextKey", "BPFProgLoad", "BPFObjPin", "BPFObjGet",
	"BPFProgAttach", "BPFProgDetach", "BPFProgTestRun", "BPFProgGetNextId",
	"BPFMapGetNextId", "BPFProgGetFdById", "BPFMapGetFdById",
	"BPFObjGetInfoByFd", "BPFProgQuery", "BPFRawTracepointOpen",