teo-tsirpanis

// Written by Theodore Tsirpanis.
// Licensed under the CC0 license.
// SPDX-License-Identifier: CC0-1.0

using System.Buffers;

#nullable enable

/// <summary>
/// Manages temporary buffers with low GC pressure.

EgorBo

Dynamic PGO in .NET 6.0

Dynamic PGO (Profile-guided optimization) is a JIT-compiler optimization technique that allows JIT to collect additional information about surroundings (aka profile) in tier0 codegen in order to rely on it later during promotion from tier0 to tier1 for hot methods to make them even more efficient.

What exactly PGO can optimize for us?

1. Profile-driving inlining - inliner relies on PGO data and can be very aggressive for hot paths and care less about cold ones, see dotnet/runtime#52708 and dotnet/runtime#55478. A good example where it has visible effects is this StringBuilder benchmark:

2. Guarded devirtualization - most monomorphic virtual/interface calls can be devirtualized using PGO data, e.g.:

void DisposeMe(IDisposable d)

SupinePandora43

// simplest file logger in c++
#include <fstream>
//#include <iostream>
static void LOG(char* message) {
  //std::cout << message << std::endl;
	std::fstream fs;
	fs.open("log.txt", std::fstream::in | std::fstream::out | std::fstream::app);
	fs << message;
	fs << "\n";
	fs.close();

khokhryakov47

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PhysicsMovement : MonoBehaviour
{
    [SerializeField] private float _minGroundNormalY = .65f;
    [SerializeField] private float _gravityModifier = 1f;
    [SerializeField] private Vector2 _velocity;

ForeverZer0

using System;
using System.IO;
using System.IO.Compression;
using System.Text;

namespace TarExample
{

	public class Tar
	{

MatthewRalston

ROFLcopter ASCII

If you hear SOI SOI SOI, you better RUN RUN RUN ’cause the ROFLCOPTER ASCII army is coming for you!

THE ORIGINAL ROFLCOPTER

 ROFL:ROFL:ROFL:ROFL
         _^___
 L __/ [] \

SaschaWillems

Shader

layout (location = 0) in vec3 inPos;
layout (location = 1) in vec3 inColor;
layout (location = 2) in vec3 inPosB;
layout (location = 3) in vec3 inColorB;

...

Application

pierrejoubert73

How to add a collapsible section in markdown

1. Example

Click me

Heading

1. Foo
2. Bar
   • Baz

• Qux

MariadeAnton

Travis CI - GitHub Satellite 2019

Menu

• Why

• Getting up and running

wassname

"""
Url: https://gist.github.com/wassname/1393c4a57cfcbf03641dbc31886123b8
"""
import unicodedata
import string

valid_filename_chars = "-_.() %s%s" % (string.ascii_letters, string.digits)
char_limit = 255

def clean_filename(filename, whitelist=valid_filename_chars, replace=' '):