kartben

net_pkt_pull() TCP goodput campaign

Buffer	Write	TCP_NODELAY	Baseline	Candidate	Change
128	64	0	14.551 Mbit/s	14.649 Mbit/s	+0.67%
128	64	1	2.540 Mbit/s	2.534 Mbit/s	-0.23%
128	128	0	18.305 Mbit/s	18.268 Mbit/s	-0.20%
128	128	1	4.737 Mbit/s	4.783 Mbit/s	+0.98%
128	256	0	19.988 Mbit/s	20.196 Mbit/s	+1.04%
128	256	1	8.762 Mbit/s	8.848 Mbit/s	+0.98%

kartben

python3 - <<'PY'
import math
import struct

sample_rates = [8000, 16000, 32000, 44100, 48000]
widths = [8, 16, 24, 32]

freq = 1000
duration_s = 1
steps = 61

kartben

#!/usr/bin/env python3
# SPDX-FileCopyrightText: Copyright The Zephyr Project Contributors
# SPDX-License-Identifier: Apache-2.0

"""
List open GitHub PRs that are **truly mergeable**: no merge conflicts (GitHub
``mergeable``) **and** all **required** status checks completed successfully.
For each listed PR, shows failing **non-required** checks (if any).

Uses the GitHub GraphQL API. Authenticate with ``gh auth login`` or set

kartben

Zephyr Year 2038 Immunity Report

1. Executive Summary

Zephyr is immune to the Year 2038 bug by default.

The operating system enforces 64-bit time representations at both the kernel and application library levels. While it is possible to disable these protections via Kconfig, the default configuration prevents the build from succeeding if the underlying C library tries to use a 32-bit time_t.

2. Understanding the Year 2038 Bug

The Mechanism

kartben

printf '%s\n' 'localhost:8443 {                                                  ✔  15s   11:05:53  
    tls internal
    root * _build/html
    file_server
    encode zstd gzip
}
:8080 {
    redir https://localhost:8443{uri} 308
}' | caddy run --config /dev/stdin --adapter caddyfile

kartben

#!/usr/bin/env python3
"""
Script to check GitHub activity of maintainers and collaborators listed in MAINTAINERS.yml

This script extracts all GitHub usernames from the MAINTAINERS.yml file and checks their
activity in the specified GitHub organization using the GitHub GraphQL API.

Requirements:
- GITHUB_TOKEN environment variable must be set
- requests library (pip install requests)

kartben

python seewav.py /Users/kartben/Downloads/20250905-esv2-53p-bg-51p.wav -W 1280 -H 720 -c 1,1,1 --bg-image ~/Downloads/the\ zephyr\ podcast.png --rect 0 300 1280 420 -B 50 --bar-ratio 1 0.5 -O 4 --fade-in 2 --fade-out 2

kartben

/dts-v1/;

/* node '/' defined in zephyr/dts/common/skeleton.dtsi:9 */
/ {
	#address-cells = < 0x1 >;    /* in zephyr/dts/common/skeleton.dtsi:10 */
	#size-cells = < 0x1 >;       /* in zephyr/dts/common/skeleton.dtsi:11 */
	model = "Native Sim Board";  /* in zephyr/boards/native/native_sim/native_sim.dts:14 */
	compatible = "zephyr,posix"; /* in zephyr/boards/native/native_sim/native_sim.dts:15 */

	/* node '/chosen' defined in zephyr/dts/common/skeleton.dtsi:12 */

kartben

python3 -m coverxygen --xml-dir  doc/_build/doxygen/xml/ --src-dir include/ --output doc-coverage.info && \
lcov --remove doc-coverage.info \*/deprecated > new.info && \
genhtml --no-function-coverage --no-branch-coverage new.info -o coverage-report

kartben

#!/bin/bash

# Start in current directory
root_dir=$(pwd)

# Find all unique directories containing Kconfig* files
find "$root_dir" -type f -name 'Kconfig*' -exec dirname {} \; | sort -u | while read dir; do

    # Check if any Kconfig* file in the directory matches the pattern 'config .*_SHELL$'
    if grep -E -q '^[[:space:]]*config .*_SHELL$' "$dir"/Kconfig*; then