arkadijs

Compact x86 32-bit Linux v6 kernel compile times on tmpfs storage.

CPU	Year	Cores	Threads	Freq, GHz	Boost	RAM	MT/s	Elapsed, sec
2x AWS Graviton4	2023	2x 96	192	2.7		DDR5	5600	17
Ryzen 9 9950X	2024	16	32	4.3	4.7	DDR5	6000	60
2x Xeon Gold 6230	2019	2x 20	80	2.1	2.4	R.DDR4	2666	63
2x Xeon E5-2630 v4	2016	2x 10	40	2.2	2.4	DDR4	2133	126
Xeon W-11955M	2021	8	16	2.6	[^3]4.2	DDR4	3200	130
Xeon E5-2680 v4	2016	14	28	2.4	2.9	DDR4	2133	192

arkadijs

Mesa 3D retro survey

Surveying retro graphics cards...

Device		24.1.3	21.3.9 amber	20.3.5 [^1]
R600 Radeon HD2600 XT	glxgears	✅	✅	✅
- OpenGL 3.3, GLES 3.0	glquake[^2]	✅	✅	✅
- RV630 [^10]	lzdoom	✅

arkadijs

#include <fcntl.h>
#include <io.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <windows.h>

#include "portaudio.h"

arkadijs

Based mostly on sbc-bench submissions and a few entries of my own testing. Ordered by 7-zip single threaded performance. Italic MHz font marks overclock.

Device	Clock MHz	Kernel	Distro	7-zip multi	single	AES kB/s	memcpy	memset MB/s	latency s/dual	hugepg ns
Apple M1 Pro	3030/2060	5.18	Gentoo arm64	43800	5010	1064450	27110	71910	100/126
Pentium G4600 (Kaby Lake, 2017)	3600	4.19	Buster amd64	11810	4448	984820	15120	33380	76/83	64/73
Qualcomm Snapdragon 8cx Gen 3	3000/2440	6.3	Lunar arm64	35370	4312	1686160

arkadijs

package main

import (
	"fmt"
	"io"
	"strings"
)

const rate = 2 // bytes per millisec of "audio"

arkadijs

apiVersion: externaldns.k8s.io/v1alpha1
kind: DNSEndpoint
metadata:
  name: proxy
spec:
  endpoints:
  - dnsName: proxy.superhub.io
    recordTTL: 300
    recordType: CNAME
    targets:

arkadijs

const defaultTtl = 60 * 60;
const validAtLeast = 10 * 1000;
const retry = 5 * 1000;

function cache(retrieve) {
    const context = {
        expireAt: 0,
        promise: null,

        get() {

arkadijs

package dekker;

public class Main {
    private static volatile boolean flag0 = false;
    private static volatile boolean flag1 = false;
    private static volatile int turn = 0;

    private static long count = 0;
    private static long count0 = 0;
    private static long count1 = 0;

arkadijs

use std::char;
use std::collections::HashMap;
use std::thread;
use std::sync::{Arc, Barrier};
use std::sync::mpsc::{channel, Sender};

const NTHREADS: u32 = 5;

fn slow(n: u32) -> char {
    thread::sleep_ms(n);

arkadijs

import (
    "archive/zip"
    "fmt"
    awss3 "github.com/aws/aws-sdk-go/service/s3"
    "io"
)

    var s3 *awss3.S3

    head, err := s3.HeadObject(