jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

emschwartz

This is an OPML version of the HN Popularity Contest results for 2025, for importing into RSS feed readers.

Plug: if you want to find content related to your interests from thousands of obscure blogs and noisy sources like HN Newest, check out Scour. It's a free, personalized content feed I work on where you define your interests in your own words and it ranks content based on how closely related it is to those topics.

dnagir

# RSpec 2.0 syntax Cheet Sheet by http://ApproachE.com

# defining spec within a module will automatically pick Player::MovieList as a 'subject' (see below)
module Player
	describe MovieList, "with optional description" do
		  
	  it "is pending example, so that you can write ones quickly"
	  
	  it "is already working example that we want to suspend from failing temporarily" do
		pending("working on another feature that temporarily breaks this one")

erikh

#!/usr/bin/env sh

##
# This is script with usefull tips taken from:
#   https://github.com/mathiasbynens/dotfiles/blob/master/.osx
#
# install it:
#   curl -sL https://raw.github.com/gist/2108403/hack.sh | sh
#

JeffPaine

i3 Window Manager Cheat Sheet

$mod refers to the modifier key (alt by default)

General

• startx i3 start i3 from command line
• $mod+<Enter> open a terminal
• $mod+d open dmenu (text based program launcher)
• $mod+r resize mode ( or to leave resize mode)
• $mod+shift+e exit i3

d12frosted

(defun vulpea-project-p ()
  "Return non-nil if current buffer has any todo entry.

TODO entries marked as done are ignored, meaning the this
function returns nil if current buffer contains only completed
tasks."
  (seq-find                                 ; (3)
   (lambda (type)
     (eq type 'todo))
   (org-element-map                         ; (2)

davidmezzetti

import re

from txtai import Embeddings, LLM

# Prompt courtesy of the following link: https://github.com/codelion/optillm/blob/main/cot_reflection.py
def cot(system, user):
    system = f"""
        {system}

        You are an AI assistant that uses a Chain of Thought (CoT) approach with reflection to answer queries. Follow these steps:

mcvarer

#!/bin/bash
## This gist contains instructions about cuda v11.2 and cudnn 8.1 installation in Ubuntu 18.04 for PyTorch

#############################################################################################
##### forked by : https://gist.github.com/Mahedi-61/2a2f1579d4271717d421065168ce6a73 ########
#############################################################################################


### steps ####
# verify the system has a cuda-capable gpu

MidSpike

CVE-2022-23812

---

RIAEvangelist/node-ipc is malware / protestware

The RIAEvangelist/node-ipc module contains protestware peacenotwar.

Excerpt from RIAEvangelist/node-ipc:

as of v11.0.0 & v9.2.2 this module uses the peacenotwar module.