Skip to content

Instantly share code, notes, and snippets.

View MattAlp's full-sized avatar

Matt MattAlp

View GitHub Profile
@jbachorik
jbachorik / javaone_2025_resources.md
Last active January 7, 2026 22:10
Advancing Java Profiling
@Marcondiro
Marcondiro / intel_pt_kvm.md
Last active December 3, 2025 18:11
How to Enable Intel PT (Processor Trace) in QEMU-KVM VMs

How to Enable Intel PT (Processor Trace) in QEMU-KVM VMs

Caution

Intel PT virtualization is BROKEN, as it has multiple fatal flaws, several which put the host at risk. Use at your own risk.

This guide will most likely become obsolete once the feature will be removed from the various linux distros. For more info check out KVM: VMX: Mark Intel PT virtualization as BROKEN and CVE-2024-53135

This script sets KVM Processor Trace feature in host-guest mode enabling VMs to use intel-pt

@guest271314
guest271314 / javascript_engines_and_runtimes.md
Last active January 26, 2026 09:46
A list of JavaScript engines, runtimes, interpreters

V8 is Google’s open source high-performance JavaScript and WebAssembly engine, written in C++. It is used in Chrome and in Node.js, among others. It implements ECMAScript and WebAssembly, and runs on Windows 7 or later, macOS 10.12+, and Linux systems that use x64, IA-32, ARM, or MIPS processors. V8 can run standalone, or can be embedded into any C++ application.

SpiderMonkey is Mozilla’s JavaScript and WebAssembly Engine, used in Firefox, Servo and various other projects. It is written in C++, Rust and JavaScript. You can embed it into C++ and Rust projects, and it can be run as a stand-alone shell. It can also be [compiled](https://bytecodealliance.org/articles/making-javascript-run-fast-on

@ekzhang
ekzhang / Buildcarte.ipynb
Last active April 7, 2025 00:59
Build Systems à la Carte — Python edition
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
@Chillee
Chillee / 1-pw_op_fusion.py
Last active November 4, 2025 08:34
PT 2.0 Benchmarks
import torch
import torch._inductor.config
import time
torch._inductor.config.triton.cudagraphs = False
torch.set_float32_matmul_precision('high')
def bench(f, name=None, iters=100, warmup=5, display=True, profile=False):
for _ in range(warmup):
f()
@markrmiller
markrmiller / jmh-profilers.md
Last active November 2, 2025 18:35
@eregon
eregon / immutable_classes.md
Last active January 14, 2022 15:24
https://bugs.ruby-lang.org/issues/18035

immutable = deeply frozen

Immutable classes

Immutable core classes

  • TrueClass
  • FalseClass
  • NilClass
  • Integer
@pmenke-de
pmenke-de / README.md
Last active December 22, 2025 16:38 — forked from chpatrick/nix-cmake
Using CLion with Nix

let's say you have a C++ project in Nix that you want to work on with CLion so that the nix dependencies are available.

  1. create a .nix utility directory in your project directory.
  2. put the below nix-run.sh and nix-cmake.sh in the .nix directory.
  3. in the .nix directory create symlinks for make, gcc, g++ - and maybe more tools, that need to have the nix dependencies and build tools available - and point them to nix-run.sh
  4. then, in Settings -> Build, Execution, Deployment -> Toolchains set CMake to the path to nix-cmake.sh and point all other build tools to the symlinks you've created.
@ityonemo
ityonemo / test.md
Last active January 26, 2026 14:48
Zig in 30 minutes

A half-hour to learn Zig

This is inspired by https://fasterthanli.me/blog/2020/a-half-hour-to-learn-rust/

Basics

the command zig run my_code.zig will compile and immediately run your Zig program. Each of these cells contains a zig program that you can try to run (some of them contain compile-time errors that you can comment out to play with)

@alsunseri
alsunseri / Amazon_AWS_Linux_2_on_KVM_qemu.md
Last active October 6, 2025 18:54
Install and run Amazon AWS Linux 2 locally on KVM virt-manager with qemu virtual disk