dadhi

---

name: ponytails description: > Lazy senior dev mode: the smallest change that fully solves the task, and a reply a busy human understands in one read. Use on any coding task (writing, fixing, refactoring, reviewing, choosing dependencies) and when the user says "ponytails", "be lazy", "simplest solution", "yagni", or complains about over-engineering or bloat. Levels: lite, full (default), ultra. argument-hint: "[lite|full|ultra|off]" license: MIT

dadhi

name	perf-expert
description	Deep dive into .NET performance bottlenecks.

You are the Perf-Expert. When asked to write C# code:

1. Code for the actual CPU and Memory - not for the "best-practice", "methodology" or "tech-stack":

• use data-oriented / array-based programming technics
• flat arrays/indexes/intrusive data-structures instead of pointers
• adhere to cache locality/hierarchy
• avoid dependency chains/stalls and enable ILP

dadhi

name	general-dev
description	First-principles software engineering focusing on semantic compression, directness, professionalism.

Development Principles

• Struggle for the best solution (no poc, mvp, hello-world, "in prod is obviously different/more complex" - no). We are professionals btw!
• Less code and no-code is better then more code - reassess, compact, simplify, inline and compress.
• Comment as a fellow technician - not a wordy consultant/marketing person - focus on what and why it does, inout to output transofrmation, surface usage and dependencies

dadhi

using System;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Collections.Generic;
using System.Threading;

public enum NodeType : byte { Sentinel, TwoNode, ThreeNode }

public readonly record struct NodeIdx(int Index, int Gen) {
    [MethodImpl(MethodImplOptions.AggressiveInlining)]

dadhi

1. data-class
2. data-see

dadhi

// source: https://github.com/dotnet/runtime/discussions/115627#discussioncomment-14092390

// Thread.Sleep(0);     // 4750     cede control to any thread of equal priority
// spinWait.SpinOnce(); // 4100     periodically yields (default is 10 iterations)
// Thread.Sleep(1);     // 3900     cede control to any thread of OS choice
// Thread.Yield();      // 3650     cede control to any thread on the same core
// await Task.Delay(0); // 3600     creates and waits on a system timer
// do nothing           // 3600     burn down a CPU core
// Thread.SpinWait(1);  // 3600     duration-limited Yield
// await Task.Yield();  // 3250     suspend task indefinitely (scheduler control)

dadhi

Unrordered:

• Web Frontend JS, SPA, MPA, CQRS/Reactivity == data-star.dev

  Details

  • 30 min talk - https://www.youtube.com/watch?v=0K71AyAF6E4
  • v1 release allows starting from text/html, text/json and go to SSE - https://www.youtube.com/watch?v=u0I7f6NMZvk

• Browser Server interaction == SSE server sent events

dadhi

// Post: https://x.com/VictorTaelin/status/1854326873590792276
// Note: The atomics must be kept.
// Note: This will segfault on non-Apple devices due to upfront mallocs.#include <stdint.h>

#include <stdint.h>
#include <stdatomic.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>

dadhi

#!/bin/sh
# rename-pictures.sh
# Author: Justine Tunney <jtunney@gmail.com>
# License: Apache 2.0
#
# This shell script can be used to ensure all the images in a folder
# have good descriptive filenames that are written in English. It's
# based on the Mistral 7b and LLaVA v1.5 models.
#
# For example, the following command:

dadhi

  <PropertyGroup>
    <TargetFrameworks>netcoreapp2.1;netcoreapp3.1;net5.0;net6.0;net7.0;net8.0</TargetFrameworks>
    <TargetFrameworks Condition=" '$(OS)' == 'Windows_NT' ">net48;$(TargetFrameworks)</TargetFrameworks>
    <IsPackable>false</IsPackable>
    <DefineConstants Condition="'$(TargetFramework)' != 'net48'">$(DefineConstants);READONLYSPAN</DefineConstants>
  </PropertyGroup>