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

terickson001

import "shared:shaderc"

import "vendor:glfw"
import vk "vendor:vulkan"

MAX_FRAMES_IN_FLIGHT :: 2

Context :: struct
{
	instance: vk.Instance,

esperlu

#!/bin/sh

# Converts a mysqldump file into a Sqlite 3 compatible file. It also extracts the MySQL `KEY xxxxx` from the
# CREATE block and create them in separate commands _after_ all the INSERTs.

# Awk is choosen because it's fast and portable. You can use gawk, original awk or even the lightning fast mawk.
# The mysqldump file is traversed only once.

# Usage: $ ./mysql2sqlite mysqldump-opts db-name | sqlite3 database.sqlite
# Example: $ ./mysql2sqlite --no-data -u root -pMySecretPassWord myDbase | sqlite3 database.sqlite

kennethreitz

import os
import pymongo

MONGO_URL = os.environ.get('MONGOHQ_URL')

if MONGO_URL:
    # Get a connection
    conn = pymongo.Connection(MONGO_URL)
    
    # Get the database

alexpw

;; Approach 1, verbose

(defmacro try-catch [[lvl-fn fn] body] 
  (list 'try body 
    (list 'catch 'Exception 'e
      (list lvl-fn 'e
        (list ':name (list 'meta '#'fn))))))

(macroexpand '(try-catch [info foo] (reduce + 0 (range 5))))

DavidYKay

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 280.13  (buildd@rothera)  Fri Aug  5 12:28:41 UTC 2011


Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"

avescodes

Check out README.md to get started editing Clojure with Emacs.

bhauman

Recent improvements to the ClojureScript compiler have greatly simplified setting up development versus production outputs.

This example uses Figwheel as something that you want to exclude for production, but the pattern is general.

With this simple setup you only need one html file/view and it will work for developement and production.

chirag04

Credits

All credit to @sahrens for sharing fb's internal implementation.

Setup

• clone rocksdb from https://github.com/facebook/rocksdb.

• edit MakeFile inside rocksdb. Search for Platform-specific compilation around line 1122. Make th next few lines to look like this:

ifeq ($(PLATFORM), IOS)
# For iOS, create universal object files to be used on both the simulator and

leandrosilva

package msgpack.rpc.sample.client;

import org.msgpack.rpc.Client;
import org.msgpack.rpc.loop.EventLoop;

public class ClientApp {
	private static class SpawnRequest {
		private SpawnRequest(final int clientCount, final int requestCount, final RPCInterface iface) {
			new Thread(new Runnable() {
				public void run() {